星期一『1-50』
Q.1 user_data is a nonencrypted tablespace containing tables with data.
You must encrypt all data in this tablespace.
Which three methods can do this?
A. Use CREATE TABLE AS SELECT
B. Use Data Pump.
C. Use alter tablespace to encrypt the tablespace.
D. Use alter tablespace to encrypt the tablespace after enabling row movement on all its
E. Use ALTER TABLE. . .MOVE
Correct Answer: A,B,E
Q.2 Identify three benefits of unified auditing.
A. It automatically audits Recovery Manager (RMAN) events.
B. An audit trail cannot be modified because it is read-only.
C. It reduces overhead on a database caused by auditing, by having a single audit trail.
D. It guarantees zero-loss auditing.
E. It helps to reduce disk space used to store an audit trail in a database.
Correct Answer: A,B,C
Q.3 Examine the RMAN command:
RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON;
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
Which prerequisite must be met before accomplishing the backup?
A. The password for the encryption must be set up.
B. Oracle wallet for the encryption must be set up.
C. All the tablespaces in the database must be encrypted.
D. Oracle Database Vault must be enabled.
Correct Answer: B
Q.4 Which three types of backups can be performed for a database running in NOARCHIVELOG mode?
A. consistent whole database backup
B. backup of noncritical tablespaces without shutting down the instance
C. backup of the database without shutting down the instance
D. backup of only those blocks that have changed since the last backup while database is mounted
E. backup of only the used blocks in a critical tablespace (SYSTEM or SYSAUX) while the database is open
Correct Answer: A,C,D
Q.5 Your database is running in archivelog mode.
You are taking a backup of your database by using RMAN with a recovery catalog.
Because of a media failure, one of the data files and all the control files are lost.
Examine the steps to recover the database:
1.Restore the control files by using the RMAN restore controlfile command.
2.Mount the database.
3.Restore the data files by using the RMAN restore database command.
4.Open the database with the resetlogs option.
5.Recover the data files by using the RMAN recover using backup controlfile command.
6.Start the database instance in nomount state.
7.Connect to the target database by using a recovery catalog.
8.Open the database.
9.Restore the data file.
10.Recover the data file.
Identify the required steps in the correct order.
A. 7, 6, 1, 2, 9, 10, 4
B. 7, 6, 1, 2, 3, 5, 4
C. 7, 6, 1, 2, 9, 10, 8
D. 7, 2, 1, 3, 5, 8
Correct Answer: A
Q.6 Which three statements are true about unplugging a pluggable database (PDB)?
A. The PDB must be open in read only mode.
B. The PDB must be dosed.
C. The unplugged PDB becomes a non-CDB.
D. The unplugged PDB can be plugged into the same multitenant container database (CDB)
E. The unplugged PDB can be plugged into another CDB.
F. The PDB data files are automatically removed from disk.
Correct Answer: B,D,E
Q.7 Your database is running in ARCHIVELOG mode and flashback is enabled.
In which scenario must you use RMAN backups for recovering tables and table partitions?
A. when recovering data that was lost after a DDL operation modified the structure of a table
B. when recovering a table that has been logically corrupted
C. when recovering a table to a point in time
D. when recovering the data of a table to the desired point in time,
which is more recent that the oldest available undo
E. when recovering dropped tables that are present in the recyclebin
Correct Answer: C
Q.8 When is the UNDO_RETENTION parameter value ignored by a transaction?
A. when the data file of the undo tablespace is autoextensible
B. when there are multiple undotablespaces available in a database
C. when the undo tablespace is of a fixed size and retention guarantee is not enabled
D. when Flashback Database is enabled
Correct Answer: C
Reference:
http://docs.oracle.com/cd/B19306_01/server.102/b14231/undo.htm
(undo retention, see the bullets)
Q.9 You execute the RMAN commands:
RMAN> BACKUP VALIDATE DATABASE;
RMAN> RECOVER CORRUPTION LIST;
Which task is performed by these commands?
A. Corrupted blocks, if any, are repaired in the backup created.
B. Only those data files that have corrupted blocks are backed up.
C. The database is checked for physically corrupt blocks and any corrupted blocks are repaired.
D. Corrupted blocks in the data files are checked and repaired before performing the database backup.
Correct Answer: D
Q.10 Which four actions are possible during an Online Datafile Move operation?
A. Creating and dropping tables in the datafile being moved
B. Performing file shrink of the data file being moved
C. Querying tables in the datafile being moved
D. Performing Block Media Recovery for a data block in the datafile being moved
E. Flashing back the database
F. Executing DML statements on objects stored in the datafile being moved
Correct Answer: A,C,E,F
Q.11 Examine the initialization parameter that is set in the PFILE:
DB_CREATE_FILE_DEST = '/u01/app/oracle/oradata/'
You execute the following command to create the CDB1.
container database (CDB):
SQL>CREATE DATABASE CDB1
DEFAULT TABLESPACE users
DEFAULT TEMPORARY TABLESPACE temp
UNDO TABLESPACE undo tbsl
ENABLE PLUGGABLE DATABASE SEED
SYSTEM DATAFILES SIZE 125M AUTOEXTEND ON NEXT 10M MAXSIZE UNLIMITED
SYSAUX DATAFILES SIZE 100M;
Which three statements are true?
A. undotbs1 is used as the undo tablespace for both the root and seed databases.
B. It sets the users tablespace as the default for both the root and seed databases.
C. It creates a multitenant container database with a root and a seed pluggable database (PDB)
that are opened in read-write and read-only modes, respectively.
D. It creates a multitenant container database with the root database opened and the seed database mounted.
E. The files created for both the root and seed databases use Oracle Managed Files (OMF).
F. It creates a multitenant container database with the root and seed databases opened and one PDB mounted.
Correct Answer: A,C,E
Q.12 You restore and recover your database to a new host by using an existing RMAN open database backup.
Which step must you perform next?
A. Execute catproc.sql to recompile invalid PL/SQL modules.
B. Set a new database identifier (DBID) for the newly restored database.
C. Open the database with the resetlogs option.
D. Use the RMAN set newname and switch commands to switch to new files.
Correct Answer: A
Q.13 Which three methods can be used to create a pluggable database (PDB)
in an existing multitenant container database (CDB)?
A. Use PDB$SEE Dfor creating a PDB.
B. Use the DBMS_PDB package to plug a non-CDB into an existing CDB.
C. Clone the existing PDB.
D. Use Enterprise Manager Database Express to create a PDB in an existing CDB.
E. Use the DBMS_PDBpackage to plug a pre-Oracle 12c database into an existing CDB.
Correct Answer: A,B,C
Q.14 Which three statements are true about persistent lightweight jobs?
A. They generate large amounts of metadata.
B. They are useful when users need to create a large number of jobs quickly.
C. A user cannot set privileges on them.
D. They may be created as fully self-contained jobs.
E. They must reference an existing Scheduler Program.
Correct Answer: B,C,E
Q.15 Your database supports an online transaction processing (OLTP)
workload and it needs to be up 24 x 7.
You want to perform a complete database backup by using RMAN.
Identify the minimum requirement for accomplishing the task.
A. An RMAN channel must be configured to device-type disk.
B. The database must be configured in ARCHIVELOG mode.
C. All tablespaces in the database must be locally managed.
D. Redo log groups must have at least two members each.
Correct Answer: D
Q.16 The environmental variable oracle_Base is set to /u01/app/oracle and
oracle_home is set to /u01/app/ oracle/product/12.1.0/db 1.
You want to check the diagnostic files created as part of the Automatic Diagnostic Repository (ADR).
Examine the initialization parameters set in your database.
NAME TYPE VALUE
- --------------- ------------------- -------------------
audit_file_dest string/u01/app/oracle/admin/eml2rep/adump
background_dump_dest string
core_dump_dest string
db_create_file_dest string
db_recovery_file_dest string/u01/app/oracle/fast_recovery_area
diagnostic_dest string
What is the location of the ADR base?
A. It is set to /u01/app/oracle/product:/12.1.0/db_1/log.
B. It is set to /u01/app/oracle/admin/enl2r&p/adump.
C. It is set to /u01/app/oracle.
D. It is set to /u01/app/oracle/flash_recovery_area.
Correct Answer: A
Q.17
A database instance uses an SPFILE. Examine the parameter:
NAME TYPE VALUE
--------------- ------- --------------------
control_files string /u01/app/oracle/oradata
/cdb1/disk1/control01.ctl,
/u01/app/oracle/oradata
/cdb1/disk2/control02.ctl,
You plan to multiplex the control file to a new location,
/u01/app/oracle/oradata/cdb1/disk3/ control03.ctl/.
Examine the possible steps that are in random order:
1. Shut down the database instance.
2. Issue ALTER SYSTEM SET CONTROL_FILES=
'/u01/app/oracle/oradata/cdb1/disk1/ control01.ctl,
/u01/app/oracle/oradata/cdb1/disk2/control02,
/u01/app/oracle/ oradata/cdb1/disk3/control03.ctl'
SCOPE=SPFILE;.
3. Issue ALTER SYSTEM SET CONTROL_FILES
' /u01/app/oracle/oradata/cdb1/disk1/control01.ctl,
/u01/app/oracle/oradata/ cdb1/disk2/control02.ctl,
/u01/app/oracle/oradata/cdb1/disk3/control03.ctl';.
4. Copy the control file from the existing location to
'/u01/app/oracle/oradata/cdb1/disk3/ control03.ctl'.
5. Mount the database.
6. Open the database.
Identify the required steps in the correct order to accomplish the task.
A. 3, 4
B. 2, 1, 4, 6
C. 3, 1, 4, 6
D. 1, 5, 2, 4, 6
E. 2, 6
Correct Answer: C
Q.18 Which two statements are true about the Automatic Diagnostic Repository (ADR)?
A. The ADR is used to store Automatic Workload Repository (AWR) snapshots.
B. The ADR base is shared across multiple instances.
C. The ADR can be used for problem diagnosis even when the database instance is down.
D. The ADR base keeps all diagnostic information in binary format.
E. The ADR can be used to store statspack snapshots to diagnose database performance issues.
Correct Answer: C,E
Q.19 Which three statements are true about Oracle Restart?
A. It can be configured to automatically attempt to restart various components after a hardware or software failure.
B. While starting any components, it automatically attempts to start all dependencies first and in proper order.
C. It can be configured to automatically restart a database in case of normal shutdown of the database instance.
D. It can be used to only start Oracle components.
E. It runs periodic check operations to monitor the health of Oracle components.
Correct Answer: A,B,E
Q.20 A user issues a query on the sales table and receives the following error:
ERROR at line 1:
ORA-01565: error in identifying file '/u0l/app/oracle/oradata/ORCL/temp01.dbf'
ORA-27037: unable to obtain file status
Which two actions would you take to recover the temporary tablespace?
A. Create a new temporary tablespace and assign it as the default to the user.
B. Add a new temp file to the temporary tablespace and drop the temp01.dbf file.
C. Take the temporary tablespace offline, recover the missing temp file,
and then bring the temporary tablespace online.
D. Drop the temp01.dbf file, and then re-create the temp file.
E. Shut down the database instance, start up the database instance in mount state,
create a new temporary tablespace, and then open the database.
Correct Answer: A,C
Q.21 Which two statements are true about tablespaces in multitenant container databases (CDBs)?
A. Default permanent tablespaces can be shared across pluggable databases(PDBs).
B. Each PDB can have its own default temporary tablespace.
C. The current container must be set to root to create or modify the default temporary tablespace or tablespace group for a CDB.
D. The default permanent tablespace for a PDB can be changed only by a local user with the required permissions.
E. The amount of space that each PDB can use in a shared temporary tablespace must be set at the CDB level.
Correct Answer: A,C
Q.22 You notice that the performance of your production 24x7 Oracle 12c database has significantly degraded.
Sometimes, you are not able to connect to the database instance because it hangs.
How can you detect the cause of the degraded performance?
A. by using Active Session History (ASH) data and performing hang analysis
B. by running ADDM to fetch information from the latest Automatic Workload Repository (AWR) snapshots
C. by performing emergency monitoring using Real-Time Automatic Database Diagnostic Monitor (ADDM)
to fetch data directly from SGA for analysis
D. by running ADDM in diagnostic mode
Correct Answer: B
Q.23 You are connected to a pluggable database (PDB) as a common user with the sysdba privilege.
The PDB is open and you issue the shutdown immediate command.
What is the outcome?
A. The PDB is closed and left in the unmount state.
B. The PDB is placed and left in the mount state.
C. The command executes only if the common user is granted the set container privilege for the PDB.
D. The command results in an error because the PDB can be shut down only by a local user.
Correct Answer: A
Q.24 You use RMAN with a recovery catalog to back up your database.
The backups and the archived redo log files are backed up to media daily.
Because of a media failure, the entire database along with the recovery catalog database is lost.
Examine the steps required to recover the database:
1.Restore an autobackup of the server parameter file.
2.Restore the control file.
3.Start up the database instance in nomount state.
4.Mount the database.
5.Restore the data files.
6.Open the database with the resetlogs option.
7.Recover the data files.
8.Set D3ID for the database.
Identify the required steps in the correct order.
A. 8, 3, 2, 4, 5, 7, 6
B. 1, 3, 2, 4, 8, 5, 6, 7
C. 8, 1, 3, 2, 4, 5, 6
D. 1, 8, 3, 2, 4, 5, 7, 6
E. 8, 1, 3, 2, 4, 5, 7, 6
Correct Answer: A
Q.25 You are administering a multitenant container database (CDB) CDB1 with two pluggable databases (PDBs),
PDB1 and PDB2. You execute the following commands on CBD$ROOT as the SYS user:
SQL> CREATE USER c##scott IDENTIFIED BY scottorcll;
SQL> GRANT CREATE SESSION TO c##scott user?
Which statement is true about the c##scott user?
A. It is created and has the CREATE SESSION privilege only in a PDB that is open.
B. It is created in all the PDBs but has the CREATE SESSION privilege only in CDB$ROOT.
C. It is created in all the PDBs with the CREATE SESSION privilege.
D. It is created only in CDB$ROOT and has the CREATE SESSION privilege.
Correct Answer: A
Q.26 Which three statements are true about Oracle Secure Backup (OSB)?
A. It can be used to perform file system backups at the file, directory, file system, or raw partition level.
B. It can be used to take image copy backups to tape.
C. It can be used to manage tape backup and restore operations for multiple databases.
D. It can encrypt client data written to tape.
E. It can be used along with an RMAN recovery catalog for maintaining records of backups in a tape library.
Correct Answer: A,C,D
Q.27 Which two statements are true about service creation for pluggable databases (PDBs)?
A. A database managed by Oracle Restart can have additional services created
or existing services modified by using the srvctl utility for each PDB.
B. Only a common user can create additional services for a PDB.
C. When a PDB is created, a service with the same name as the PDB is created in the PDB.
D. When a PDB is created, a service is automatically started in the instance with the same name as the PDB.
E. The default service that is automatically created by a database at the time of PDB creation can be dropped,
provided a new additional service is created.
Correct Answer: A,B
Q.28 You are administering a multitenant container database (CDB) that contains multiple pluggable databases (PDBs).
You are connected to cdb$root as the sys user.
You execute the commands:
SQL> CREATE USER C##ADMIN IDENTIFIED BY orcl123;
SQL> CREATE ROLE C##CONNECT;
SQL> GRANT CREATE SESSION, CREATE TABLE, SELECT ANY TABLE TO C##CONNECT;
SQL> GRANT C##CONNECT to C##ADMIN CONTAINER=ALL;
Which statement is true about the c##connect role?
A. It is granted to the c##admin user in all PDBs and can be granted object and system privileges for a PDB.
B. It is created only in cdb$root and cannot be granted to the c##admin user with the container=all clause.
C. It is granted to the c##admin user in all PDBs and can be granted only to a local user in a PDB.
D. It is granted to the c##admin user only in the CDB.
Correct Answer: C
Q.29 You issue the command:
SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE;
Which statement is true about the command?
A. It creates a copy of the control file and stores it in the location specified in the diagnostic_dest initialization parameter.
B. It creates a file that contains the SQL statement, which is required to re-create the control file.
C. It creates a binary backup of the control file.
D. It updates the alert log file with the location and contents of the control file.
Correct Answer: B
Q.30 A complete database backup to media is taken for your database every day.
Which three actions would you take to improve backup performance?
A. Set the backup_tape_io_slaves parameter to true.
B. Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.
C. Configure large pool if not already done.
D. Remove the rate parameter, if specified, in the allocate channel command.
E. Always use RMAN compression for tape backups rather than the compression provided by media manager.
F. Always use synchronous I/O for the database.
Correct Answer: B,C,D
Q.31 Which two statements are true about Resource Manager plans for individual pluggable databases (PDB plans)
in a multitenant container database (CDB)?
A. If no PDB plan is enabled for a pluggable database, all sessions for that PDB are treated to an equal share of resources.
B. To enable a resource plan for a PDB, a CDB resource plan must be created and enabled.
C. If a PDB plan is enabled for a pluggable database, Resource Manager uses the resource allocation
at the PDB level and ignores the limits set at the CDB level.
D. If no PDB plan is enabled for a pluggable database, the PDB uses the CDB plan.
E. If a PDB plan is enabled for a pluggable database, resources are allocated to
consumer groups based on the shares provided to the PDB in the CDB plan
and the shares provided to the consumer groups in the PDB plan.
Correct Answer: A,E
Q.32
Automatic Undo Management is enabled for your database.
You want a user to retrieve metadata and historical data for a given transaction or for transactions in a given time interval.
Which three are prerequisites to fulfill this requirement?
A. Minimal supplemental logging must be enabled.
B. The recycle bin parameter must be set to on.
C. Flashback Data Archive must be created and the flashback archive administer system privilege must be granted to the user.
D. The flashback any table privilege must be granted to the user.
E. The select any transaction privilege must be granted to the user.
F. The database must be running in archivelog mode.
Correct Answer: C,D,E
Q.33
Which three requirements should be successfully met by an Oracle Secure Backup (OSB) user so
that OSB performs RMAN backup or restore requests?
A. RMAN preauthorization on the host
B. OSB encryption for data in transport and on tape
C. matching the OS user identity of the Oracle instance associated with the database username
D. assigned to a class with rights to back up or restore Oracle database
E. scheduling of the RMAN backup to occur automatically at user-defined intervals
F. assigned to a class with rights to browse all directories and catalogs
Correct Answer: A,D,F
Q.34
You are connected to a recovery catalog and target database.
You execute the command:
RMAN> CATALOG START WITH '/disk1/backups';
Which statement is true?
A. Only valid data file copies, existing in the /disk1/backupsdirectory, are cataloged.
B. Only valid backup pieces and archived logs, existing in the /disk1/backupsdirectory, are cataloged.
C. It lists all data file copies, backup pieces, and achieved logs cataloged in the recovery catalog
in the /disk1/backupsdirectory and its subdirectories.
D. It lists and catalogs all valid data file copies, backup pieces, and archived logs
that exist in all directory paths with the prefix /disk1/backupsand their subdirectories.
Correct Answer: D
Q.35
View the SPFILE parameter settings in the Exhibit.
図**
You issue this command and get errors:
SQL> startup
ORA-00824:can not set SGA TARGET or MEMORY_TARGET due to existing internal settings,
see alertlog for more information
Why did the instance fail to start?
A. because sga_target and memory_target are both set
B. because memory_target and memory_max_target cannot be equal
C. because pga_aggregate_target is not set
D. because statistics_level is set to basic
Correct Answer: D
Q.36
Examine the RMAN commands executed in your database:
RMAN> CONFIGURE DEFAULT DEVICE TYPE TO disk;
RMAN> CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO BACKUPSET;
RKAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;
You issue the command:
RMAN> BACKUP DATABASE;
Which two statements are true about the command?
A. It backs up only the used blocks in data files.
B. It backs up data files, the control file, and the server parameter file.
C. It performs a log switch.
D. It creates a backup of only the control file whenever the database undergoes a structural change.
E. It creates compressed backup sets by using binary compression by default.
Correct Answer: D,E
Q.37
Your production database is running in archivelog mode.
You use RMAN with a recovery catalog to back up your database to media
and the database is uniquely identified in the recovery catalog.
You want to create a test database from the production database
and allow the production database to remain open during the duplicate process.
You restore the database backups to a new host with the same directory structure as the production database
and want to use the recovery catalog for future backups
after the database is successfully restored to the new host.
How would you achieve this?
A. by using the RMAN duplicate command with dbid and set newname for tablespace to recover the database to the new host
B. by creating a new database in the new host, and then using the RMAN recover command
C. by using the RMAN switch command to set the new location for the data files
D. by using the RMAN duplicate command with nofilenamecheck to recover the database to the new host
Correct Answer: B
Q.38
Which two statements are true about Resource Manager plans for individual pluggable databases (PDB plans)
in a multitenant container database (CDB)?
A. If no PDB plan is enabled for a pluggable database, then all sessions for
that PDB are treated to an equal degree of the resource share of that PDB.
B. In a PDB plan, subplans may be used with up to eight consumer groups.
C. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the CDB.
D. If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.
E. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based
on the shares provided to the PDB in the CDB plan
and the shares provided to the consumer groups in the PDB plan.
Correct Answer: A,E
Q.39
You are administering a database that supports a data warehousing workload and is running in noarchivelog mode.
You use RMAN to perform a level 0 backup on Sundays and level 1 incremental backups on all the other days of the week.
One of the data files is corrupted and the current online redo log file is lost because of a media failure.
Which action must you take for recovery?
A. Restore all the data files, recover them by using the recover database command, and open the database.
B. Restore all the data files, recover them by using the recover database noredo command,
and use the resetlogs option to open the database.
C. Restore the control file and all the data files, recover them by using the recover database noredo command,
and use the resetlogs option to open the database.
D. Restore the data file, recover it by using the recover datafilenoredo command,
and use the resetlogs option to open the database.
Correct Answer: C
Q.40
Examine the command to back up the ASM metadata:
ASMCMD>md_backup /backup/ASM_backup
In which three situations can you use the backup?
A. when one or more file directory paths are accidentally deleted from an ASM disk group
B. when one or more disks in an ASM disk group are lost
C. when all the ASM disk groups for the ASM instance are lost
D. when one of the disks in a disk group is accidentally unplugged
E. when the data file on an ASM disk group gets corrupted
Correct Answer: A,D,E
Q.41
Your database instance is started using an SPFILE. You are connected to cdb$root, as a DBA. You issue:
SQL> ALTER SYSTEM SET STATISTICS_LEVEL=ALL SCOPE=BOTH;
Which two statements are true about the statistics level parameter?
A. It is immediately set to all in all PDBs where the statistics_level parameter is not set.
B. It is immediately set to all only for cdb$root.
C. It is immediately set to all in the SPFILE and the CDB instance.
D. It is immediately set to all in only those pluggable databases (PDBs) where the value is set to typical.
E. It is set to all for all PDBs only in the SPFILE.
Correct Answer: C,D
Q.42
You issue commands in SQL*Plus as the Oracle owner, to enable multithreading for your UNIX-based Oracle 12c database:
CONNECT/AS SYSDBA
ALTER SYSTEM SET THREADED__EXECUTION = TRUE SCOPE=SPFILE;
SHUT DOWN IMMEDIATE
You then restart the instance and get an error:
STARTUP
ORA-01031:insufficient privileges
Why does the startup command return the error shown?
A. because the threaded architecture requires issuing a new connect / as sysdba from within sql*plus before issuing a startup command
B. because the threaded architecture requires connecting to the instance via a listener before issuing a startup command
C. because the threaded architecture requires restarting the listener before issuing a startup command
D. because the threaded architecture requires authentication using a password file before issuing a startup command
E. because the threaded architecture requires exiting from sql*plus
and reconnecting with sql*plus / as sysdba before issuing a startup command
Correct Answer: D
Q.43
A database is running in archivelog mode. You want to back up a 10 TB data file belonging to the users tablespace.
The backup of the data file is too slow.
What type of backup do you recommend to improve the performance of the backup?
A. multisection image copy backup by using RMAN
B. multisection parallel backup by using RMAN
C. cold backup after placing the tablespace in backup mode
D. image copy backup by using RMAN
E. cold backup after taking the tablespace offline
Correct Answer: D
Q.44
Your database is running in archivelog mode. Examine the parameters for your database instance:
LOG_ARCHIVE_DEST_l ='LOCATION=/disk1/arch MANDATORY'
LOG_ARCHIVE_DEST_2 ='LOCATION=/disk2/arch'
LOG_ARCHIVE_DEST_3 ='LOCATIO=/disk3/arch'
LOG_ARCHIVE_DEST_4 ='LOCATIONs/disk4/arch'
LOG_ARCHIVE_MIN_SUCCEED_DEST = 2
While the database is open, you notice that the destination set by the log_archive_dest_1 parameter is not available.
All redo log groups have been used.
What happens at the next log switch?
A. The database instance is shutdown immediately.
B. The database instance hangs and the redo log files are not overwritten.
C. The destination set by the log_archive_dest_1 parameter is ignored and the archived redo log files
are created in the next two available locations to guarantee archive log success.
D. The archived redo log files are written to the fast recovery area until the mandatory destination is made available.
Correct Answer: C
Q.45
Which two statements are true about RMAN duplexed backups?
A. It is not supported for image copies.
B. Duplex backups can be performed on either disk or media, but cannot be performed on media and disk simultaneously.
C. Duplex backups can contain only data files and control files.
D. It is only supported for backups to tape via media management interface.
E. For performing duplexed backups, the parallelism for the device must be set equal to the number of copies.
Correct Answer: B,C
Q.46
You want to move your existing recovery catalog to another database.
Examine the steps:
1) Export the catalog data by using the Data Pump Export utility in the source database.
2) Create a recovery catalog user and grant the necessary privileges in the target database.
3) Create a recovery catalog by using the create catalog command.
4) Import the catalog data into the new recovery catalog by using the Data Pump Import utility in the target database.
5) Import the source recovery catalog schema by using the import catalog command.
6) Connect to the destination database.
7) Connect as catalog to the destination recovery catalog schema.
Identify the option with the correct sequence for moving the recovery catalog.
A. 1, 6, 4
B. 1, 2, 6, 4
C. 1, 2, 3, 6, 5
D. 2, 3, 7, 5
Correct Answer: B
Q.47
You are administering a database that supports data warehousing workload and is running in noarchivelog mode.
You use RMAN to perform a level 0 backup on Sundays and level 1 Incremental backups on all the other days of the week.
One of the data files is corrupted and the current online redo log file is lost because of a media failure.
You want to recover the data file.
Examine the steps involved in the recovery process:
1. Shut down the database instance.
2. Start up the database instance in nomount state.
3. Mount the database.
4. Take the data file offline.
5. Put the data file online.
6. Restore the control file.
7. Restore the database.
8. Restore the data file.
9. Open the database with the resetlog option.
10. Recover the database with the noredo option.
11. Recover the data file with the noredo option.
Identify the required steps in the correct order.
A. 1, 2, 6, 3, 7, 10, 9
B. 1, 2, 6, 3, 8, 11, 9
C. 1, 3, 7, 10, 9
D. 4, 8, 11, 5
E. 1, 3, 8, 11, 9
Correct Answer: A
Q.48
You want to export the pluggable database (PDB) hr_pdb1 from the multitenant container database (CDB) CDB1 and
import it into the cdb2 CDB as the emp_pdb1 PDB.
Examine the list of possible steps required to perform the task:
1. Create a PDB named emp_pdb1.
2. Export the hr_pdb1 PDB by using the full clause.
3. Open the emp_pdb1 PDB.
4. Mount the emp_pdb1 PDB.
5. Synchronize the emp_pdb1 PDB in restricted mode.
6. Copy the dump file to the Data Pump directory.
7. Create a Data Pump directory in the emp_pdb1 PDB.
8. Import data into emp_pdb1 with the full and remap clauses.
9. Create the same tablespaces in emp_pdb1 as in hr_pdb1 for new local user objects.
Identify the required steps in the correct order.
A. 2, 1, 3, 7, 6, 9, and 8
B. 2, 1, 3, 5, 7, 6, and 8
C. 2, 1, 4, 5, 3, 7, 6, 9, and 8
D. 2, 1, 3, 7, 6, and 8
Correct Answer: A
Q.49
Your database is running on the host OUSERVER. You back up your database regularly using RMAN
and the backups are cataloged in a recovery catalog.
For testing purposes, you want to replicate your database to another host, OUSERVER1,
with the same directory structure. So, you copy the backups to the new host.
What must you do to make the database operational in OUSERVER1?
A. Restore the control file from the backup by using the CATALOGoption,
restore the data files by using the SET NEWNAME command, and recover the data files.
B. Restore the data files by using the NOCATALOGoption and use the SET NEWNAME command to change the location.
C. Restore the control file from the backup by using the NOCATALOGoption, and then restore and recover the data files.
D. Restore the data files from the backup by using the recovery catalog,
use the SWITCH command to change the location, and recover the data files.
Correct Answer: A
Q.50 You want the execution of large database operations to suspend, and then resume,
in the event of space allocation failures.
You set the value of the initialization parameter resumable_timeout to 3600.
Which two statements are true?
A. Suspending a statement automatically results in suspending a transaction and releasing all the resources held by the transaction.
B. Data Manipulation Language (DML) operations are resumable, provided that they are not embedded in a PL/SQL block.
C. A suspended statement will report an error if no corrective action has taken place during a timeout period.
D. Before a statement executes in resumable mode, the alter session enable resumable statement must be issued in its session.
E. A resumable statement can be suspended and resumed only once during execution.
Correct Answer: D,E
You must encrypt all data in this tablespace.
Which three methods can do this?
A. Use CREATE TABLE AS SELECT
B. Use Data Pump.
C. Use alter tablespace to encrypt the tablespace.
D. Use alter tablespace to encrypt the tablespace after enabling row movement on all its
E. Use ALTER TABLE. . .MOVE
Correct Answer: A,B,E
Q.2 Identify three benefits of unified auditing.
A. It automatically audits Recovery Manager (RMAN) events.
B. An audit trail cannot be modified because it is read-only.
C. It reduces overhead on a database caused by auditing, by having a single audit trail.
D. It guarantees zero-loss auditing.
E. It helps to reduce disk space used to store an audit trail in a database.
Correct Answer: A,B,C
Q.3 Examine the RMAN command:
RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON;
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
Which prerequisite must be met before accomplishing the backup?
A. The password for the encryption must be set up.
B. Oracle wallet for the encryption must be set up.
C. All the tablespaces in the database must be encrypted.
D. Oracle Database Vault must be enabled.
Correct Answer: B
Q.4 Which three types of backups can be performed for a database running in NOARCHIVELOG mode?
A. consistent whole database backup
B. backup of noncritical tablespaces without shutting down the instance
C. backup of the database without shutting down the instance
D. backup of only those blocks that have changed since the last backup while database is mounted
E. backup of only the used blocks in a critical tablespace (SYSTEM or SYSAUX) while the database is open
Correct Answer: A,C,D
Q.5 Your database is running in archivelog mode.
You are taking a backup of your database by using RMAN with a recovery catalog.
Because of a media failure, one of the data files and all the control files are lost.
Examine the steps to recover the database:
1.Restore the control files by using the RMAN restore controlfile command.
2.Mount the database.
3.Restore the data files by using the RMAN restore database command.
4.Open the database with the resetlogs option.
5.Recover the data files by using the RMAN recover using backup controlfile command.
6.Start the database instance in nomount state.
7.Connect to the target database by using a recovery catalog.
8.Open the database.
9.Restore the data file.
10.Recover the data file.
Identify the required steps in the correct order.
A. 7, 6, 1, 2, 9, 10, 4
B. 7, 6, 1, 2, 3, 5, 4
C. 7, 6, 1, 2, 9, 10, 8
D. 7, 2, 1, 3, 5, 8
Correct Answer: A
Q.6 Which three statements are true about unplugging a pluggable database (PDB)?
A. The PDB must be open in read only mode.
B. The PDB must be dosed.
C. The unplugged PDB becomes a non-CDB.
D. The unplugged PDB can be plugged into the same multitenant container database (CDB)
E. The unplugged PDB can be plugged into another CDB.
F. The PDB data files are automatically removed from disk.
Correct Answer: B,D,E
Q.7 Your database is running in ARCHIVELOG mode and flashback is enabled.
In which scenario must you use RMAN backups for recovering tables and table partitions?
A. when recovering data that was lost after a DDL operation modified the structure of a table
B. when recovering a table that has been logically corrupted
C. when recovering a table to a point in time
D. when recovering the data of a table to the desired point in time,
which is more recent that the oldest available undo
E. when recovering dropped tables that are present in the recyclebin
Correct Answer: C
Q.8 When is the UNDO_RETENTION parameter value ignored by a transaction?
A. when the data file of the undo tablespace is autoextensible
B. when there are multiple undotablespaces available in a database
C. when the undo tablespace is of a fixed size and retention guarantee is not enabled
D. when Flashback Database is enabled
Correct Answer: C
Reference:
http://docs.oracle.com/cd/B19306_01/server.102/b14231/undo.htm
(undo retention, see the bullets)
Q.9 You execute the RMAN commands:
RMAN> BACKUP VALIDATE DATABASE;
RMAN> RECOVER CORRUPTION LIST;
Which task is performed by these commands?
A. Corrupted blocks, if any, are repaired in the backup created.
B. Only those data files that have corrupted blocks are backed up.
C. The database is checked for physically corrupt blocks and any corrupted blocks are repaired.
D. Corrupted blocks in the data files are checked and repaired before performing the database backup.
Correct Answer: D
Q.10 Which four actions are possible during an Online Datafile Move operation?
A. Creating and dropping tables in the datafile being moved
B. Performing file shrink of the data file being moved
C. Querying tables in the datafile being moved
D. Performing Block Media Recovery for a data block in the datafile being moved
E. Flashing back the database
F. Executing DML statements on objects stored in the datafile being moved
Correct Answer: A,C,E,F
Q.11 Examine the initialization parameter that is set in the PFILE:
DB_CREATE_FILE_DEST = '/u01/app/oracle/oradata/'
You execute the following command to create the CDB1.
container database (CDB):
SQL>CREATE DATABASE CDB1
DEFAULT TABLESPACE users
DEFAULT TEMPORARY TABLESPACE temp
UNDO TABLESPACE undo tbsl
ENABLE PLUGGABLE DATABASE SEED
SYSTEM DATAFILES SIZE 125M AUTOEXTEND ON NEXT 10M MAXSIZE UNLIMITED
SYSAUX DATAFILES SIZE 100M;
Which three statements are true?
A. undotbs1 is used as the undo tablespace for both the root and seed databases.
B. It sets the users tablespace as the default for both the root and seed databases.
C. It creates a multitenant container database with a root and a seed pluggable database (PDB)
that are opened in read-write and read-only modes, respectively.
D. It creates a multitenant container database with the root database opened and the seed database mounted.
E. The files created for both the root and seed databases use Oracle Managed Files (OMF).
F. It creates a multitenant container database with the root and seed databases opened and one PDB mounted.
Correct Answer: A,C,E
Q.12 You restore and recover your database to a new host by using an existing RMAN open database backup.
Which step must you perform next?
A. Execute catproc.sql to recompile invalid PL/SQL modules.
B. Set a new database identifier (DBID) for the newly restored database.
C. Open the database with the resetlogs option.
D. Use the RMAN set newname and switch commands to switch to new files.
Correct Answer: A
Q.13 Which three methods can be used to create a pluggable database (PDB)
in an existing multitenant container database (CDB)?
A. Use PDB$SEE Dfor creating a PDB.
B. Use the DBMS_PDB package to plug a non-CDB into an existing CDB.
C. Clone the existing PDB.
D. Use Enterprise Manager Database Express to create a PDB in an existing CDB.
E. Use the DBMS_PDBpackage to plug a pre-Oracle 12c database into an existing CDB.
Correct Answer: A,B,C
Q.14 Which three statements are true about persistent lightweight jobs?
A. They generate large amounts of metadata.
B. They are useful when users need to create a large number of jobs quickly.
C. A user cannot set privileges on them.
D. They may be created as fully self-contained jobs.
E. They must reference an existing Scheduler Program.
Correct Answer: B,C,E
Q.15 Your database supports an online transaction processing (OLTP)
workload and it needs to be up 24 x 7.
You want to perform a complete database backup by using RMAN.
Identify the minimum requirement for accomplishing the task.
A. An RMAN channel must be configured to device-type disk.
B. The database must be configured in ARCHIVELOG mode.
C. All tablespaces in the database must be locally managed.
D. Redo log groups must have at least two members each.
Correct Answer: D
Q.16 The environmental variable oracle_Base is set to /u01/app/oracle and
oracle_home is set to /u01/app/ oracle/product/12.1.0/db 1.
You want to check the diagnostic files created as part of the Automatic Diagnostic Repository (ADR).
Examine the initialization parameters set in your database.
NAME TYPE VALUE
- --------------- ------------------- -------------------
audit_file_dest string/u01/app/oracle/admin/eml2rep/adump
background_dump_dest string
core_dump_dest string
db_create_file_dest string
db_recovery_file_dest string/u01/app/oracle/fast_recovery_area
diagnostic_dest string
What is the location of the ADR base?
A. It is set to /u01/app/oracle/product:/12.1.0/db_1/log.
B. It is set to /u01/app/oracle/admin/enl2r&p/adump.
C. It is set to /u01/app/oracle.
D. It is set to /u01/app/oracle/flash_recovery_area.
Correct Answer: A
Q.17
A database instance uses an SPFILE. Examine the parameter:
NAME TYPE VALUE
--------------- ------- --------------------
control_files string /u01/app/oracle/oradata
/cdb1/disk1/control01.ctl,
/u01/app/oracle/oradata
/cdb1/disk2/control02.ctl,
You plan to multiplex the control file to a new location,
/u01/app/oracle/oradata/cdb1/disk3/ control03.ctl/.
Examine the possible steps that are in random order:
1. Shut down the database instance.
2. Issue ALTER SYSTEM SET CONTROL_FILES=
'/u01/app/oracle/oradata/cdb1/disk1/ control01.ctl,
/u01/app/oracle/oradata/cdb1/disk2/control02,
/u01/app/oracle/ oradata/cdb1/disk3/control03.ctl'
SCOPE=SPFILE;.
3. Issue ALTER SYSTEM SET CONTROL_FILES
' /u01/app/oracle/oradata/cdb1/disk1/control01.ctl,
/u01/app/oracle/oradata/ cdb1/disk2/control02.ctl,
/u01/app/oracle/oradata/cdb1/disk3/control03.ctl';.
4. Copy the control file from the existing location to
'/u01/app/oracle/oradata/cdb1/disk3/ control03.ctl'.
5. Mount the database.
6. Open the database.
Identify the required steps in the correct order to accomplish the task.
A. 3, 4
B. 2, 1, 4, 6
C. 3, 1, 4, 6
D. 1, 5, 2, 4, 6
E. 2, 6
Correct Answer: C
Q.18 Which two statements are true about the Automatic Diagnostic Repository (ADR)?
A. The ADR is used to store Automatic Workload Repository (AWR) snapshots.
B. The ADR base is shared across multiple instances.
C. The ADR can be used for problem diagnosis even when the database instance is down.
D. The ADR base keeps all diagnostic information in binary format.
E. The ADR can be used to store statspack snapshots to diagnose database performance issues.
Correct Answer: C,E
Q.19 Which three statements are true about Oracle Restart?
A. It can be configured to automatically attempt to restart various components after a hardware or software failure.
B. While starting any components, it automatically attempts to start all dependencies first and in proper order.
C. It can be configured to automatically restart a database in case of normal shutdown of the database instance.
D. It can be used to only start Oracle components.
E. It runs periodic check operations to monitor the health of Oracle components.
Correct Answer: A,B,E
Q.20 A user issues a query on the sales table and receives the following error:
ERROR at line 1:
ORA-01565: error in identifying file '/u0l/app/oracle/oradata/ORCL/temp01.dbf'
ORA-27037: unable to obtain file status
Which two actions would you take to recover the temporary tablespace?
A. Create a new temporary tablespace and assign it as the default to the user.
B. Add a new temp file to the temporary tablespace and drop the temp01.dbf file.
C. Take the temporary tablespace offline, recover the missing temp file,
and then bring the temporary tablespace online.
D. Drop the temp01.dbf file, and then re-create the temp file.
E. Shut down the database instance, start up the database instance in mount state,
create a new temporary tablespace, and then open the database.
Correct Answer: A,C
Q.21 Which two statements are true about tablespaces in multitenant container databases (CDBs)?
A. Default permanent tablespaces can be shared across pluggable databases(PDBs).
B. Each PDB can have its own default temporary tablespace.
C. The current container must be set to root to create or modify the default temporary tablespace or tablespace group for a CDB.
D. The default permanent tablespace for a PDB can be changed only by a local user with the required permissions.
E. The amount of space that each PDB can use in a shared temporary tablespace must be set at the CDB level.
Correct Answer: A,C
Q.22 You notice that the performance of your production 24x7 Oracle 12c database has significantly degraded.
Sometimes, you are not able to connect to the database instance because it hangs.
How can you detect the cause of the degraded performance?
A. by using Active Session History (ASH) data and performing hang analysis
B. by running ADDM to fetch information from the latest Automatic Workload Repository (AWR) snapshots
C. by performing emergency monitoring using Real-Time Automatic Database Diagnostic Monitor (ADDM)
to fetch data directly from SGA for analysis
D. by running ADDM in diagnostic mode
Correct Answer: B
Q.23 You are connected to a pluggable database (PDB) as a common user with the sysdba privilege.
The PDB is open and you issue the shutdown immediate command.
What is the outcome?
A. The PDB is closed and left in the unmount state.
B. The PDB is placed and left in the mount state.
C. The command executes only if the common user is granted the set container privilege for the PDB.
D. The command results in an error because the PDB can be shut down only by a local user.
Correct Answer: A
Q.24 You use RMAN with a recovery catalog to back up your database.
The backups and the archived redo log files are backed up to media daily.
Because of a media failure, the entire database along with the recovery catalog database is lost.
Examine the steps required to recover the database:
1.Restore an autobackup of the server parameter file.
2.Restore the control file.
3.Start up the database instance in nomount state.
4.Mount the database.
5.Restore the data files.
6.Open the database with the resetlogs option.
7.Recover the data files.
8.Set D3ID for the database.
Identify the required steps in the correct order.
A. 8, 3, 2, 4, 5, 7, 6
B. 1, 3, 2, 4, 8, 5, 6, 7
C. 8, 1, 3, 2, 4, 5, 6
D. 1, 8, 3, 2, 4, 5, 7, 6
E. 8, 1, 3, 2, 4, 5, 7, 6
Correct Answer: A
Q.25 You are administering a multitenant container database (CDB) CDB1 with two pluggable databases (PDBs),
PDB1 and PDB2. You execute the following commands on CBD$ROOT as the SYS user:
SQL> CREATE USER c##scott IDENTIFIED BY scottorcll;
SQL> GRANT CREATE SESSION TO c##scott user?
Which statement is true about the c##scott user?
A. It is created and has the CREATE SESSION privilege only in a PDB that is open.
B. It is created in all the PDBs but has the CREATE SESSION privilege only in CDB$ROOT.
C. It is created in all the PDBs with the CREATE SESSION privilege.
D. It is created only in CDB$ROOT and has the CREATE SESSION privilege.
Correct Answer: A
Q.26 Which three statements are true about Oracle Secure Backup (OSB)?
A. It can be used to perform file system backups at the file, directory, file system, or raw partition level.
B. It can be used to take image copy backups to tape.
C. It can be used to manage tape backup and restore operations for multiple databases.
D. It can encrypt client data written to tape.
E. It can be used along with an RMAN recovery catalog for maintaining records of backups in a tape library.
Correct Answer: A,C,D
Q.27 Which two statements are true about service creation for pluggable databases (PDBs)?
A. A database managed by Oracle Restart can have additional services created
or existing services modified by using the srvctl utility for each PDB.
B. Only a common user can create additional services for a PDB.
C. When a PDB is created, a service with the same name as the PDB is created in the PDB.
D. When a PDB is created, a service is automatically started in the instance with the same name as the PDB.
E. The default service that is automatically created by a database at the time of PDB creation can be dropped,
provided a new additional service is created.
Correct Answer: A,B
Q.28 You are administering a multitenant container database (CDB) that contains multiple pluggable databases (PDBs).
You are connected to cdb$root as the sys user.
You execute the commands:
SQL> CREATE USER C##ADMIN IDENTIFIED BY orcl123;
SQL> CREATE ROLE C##CONNECT;
SQL> GRANT CREATE SESSION, CREATE TABLE, SELECT ANY TABLE TO C##CONNECT;
SQL> GRANT C##CONNECT to C##ADMIN CONTAINER=ALL;
Which statement is true about the c##connect role?
A. It is granted to the c##admin user in all PDBs and can be granted object and system privileges for a PDB.
B. It is created only in cdb$root and cannot be granted to the c##admin user with the container=all clause.
C. It is granted to the c##admin user in all PDBs and can be granted only to a local user in a PDB.
D. It is granted to the c##admin user only in the CDB.
Correct Answer: C
Q.29 You issue the command:
SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE;
Which statement is true about the command?
A. It creates a copy of the control file and stores it in the location specified in the diagnostic_dest initialization parameter.
B. It creates a file that contains the SQL statement, which is required to re-create the control file.
C. It creates a binary backup of the control file.
D. It updates the alert log file with the location and contents of the control file.
Correct Answer: B
Q.30 A complete database backup to media is taken for your database every day.
Which three actions would you take to improve backup performance?
A. Set the backup_tape_io_slaves parameter to true.
B. Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.
C. Configure large pool if not already done.
D. Remove the rate parameter, if specified, in the allocate channel command.
E. Always use RMAN compression for tape backups rather than the compression provided by media manager.
F. Always use synchronous I/O for the database.
Correct Answer: B,C,D
Q.31 Which two statements are true about Resource Manager plans for individual pluggable databases (PDB plans)
in a multitenant container database (CDB)?
A. If no PDB plan is enabled for a pluggable database, all sessions for that PDB are treated to an equal share of resources.
B. To enable a resource plan for a PDB, a CDB resource plan must be created and enabled.
C. If a PDB plan is enabled for a pluggable database, Resource Manager uses the resource allocation
at the PDB level and ignores the limits set at the CDB level.
D. If no PDB plan is enabled for a pluggable database, the PDB uses the CDB plan.
E. If a PDB plan is enabled for a pluggable database, resources are allocated to
consumer groups based on the shares provided to the PDB in the CDB plan
and the shares provided to the consumer groups in the PDB plan.
Correct Answer: A,E
Q.32
Automatic Undo Management is enabled for your database.
You want a user to retrieve metadata and historical data for a given transaction or for transactions in a given time interval.
Which three are prerequisites to fulfill this requirement?
A. Minimal supplemental logging must be enabled.
B. The recycle bin parameter must be set to on.
C. Flashback Data Archive must be created and the flashback archive administer system privilege must be granted to the user.
D. The flashback any table privilege must be granted to the user.
E. The select any transaction privilege must be granted to the user.
F. The database must be running in archivelog mode.
Correct Answer: C,D,E
Q.33
Which three requirements should be successfully met by an Oracle Secure Backup (OSB) user so
that OSB performs RMAN backup or restore requests?
A. RMAN preauthorization on the host
B. OSB encryption for data in transport and on tape
C. matching the OS user identity of the Oracle instance associated with the database username
D. assigned to a class with rights to back up or restore Oracle database
E. scheduling of the RMAN backup to occur automatically at user-defined intervals
F. assigned to a class with rights to browse all directories and catalogs
Correct Answer: A,D,F
Q.34
You are connected to a recovery catalog and target database.
You execute the command:
RMAN> CATALOG START WITH '/disk1/backups';
Which statement is true?
A. Only valid data file copies, existing in the /disk1/backupsdirectory, are cataloged.
B. Only valid backup pieces and archived logs, existing in the /disk1/backupsdirectory, are cataloged.
C. It lists all data file copies, backup pieces, and achieved logs cataloged in the recovery catalog
in the /disk1/backupsdirectory and its subdirectories.
D. It lists and catalogs all valid data file copies, backup pieces, and archived logs
that exist in all directory paths with the prefix /disk1/backupsand their subdirectories.
Correct Answer: D
Q.35
View the SPFILE parameter settings in the Exhibit.
図**
You issue this command and get errors:
SQL> startup
ORA-00824:can not set SGA TARGET or MEMORY_TARGET due to existing internal settings,
see alertlog for more information
Why did the instance fail to start?
A. because sga_target and memory_target are both set
B. because memory_target and memory_max_target cannot be equal
C. because pga_aggregate_target is not set
D. because statistics_level is set to basic
Correct Answer: D
Q.36
Examine the RMAN commands executed in your database:
RMAN> CONFIGURE DEFAULT DEVICE TYPE TO disk;
RMAN> CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO BACKUPSET;
RKAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;
You issue the command:
RMAN> BACKUP DATABASE;
Which two statements are true about the command?
A. It backs up only the used blocks in data files.
B. It backs up data files, the control file, and the server parameter file.
C. It performs a log switch.
D. It creates a backup of only the control file whenever the database undergoes a structural change.
E. It creates compressed backup sets by using binary compression by default.
Correct Answer: D,E
Q.37
Your production database is running in archivelog mode.
You use RMAN with a recovery catalog to back up your database to media
and the database is uniquely identified in the recovery catalog.
You want to create a test database from the production database
and allow the production database to remain open during the duplicate process.
You restore the database backups to a new host with the same directory structure as the production database
and want to use the recovery catalog for future backups
after the database is successfully restored to the new host.
How would you achieve this?
A. by using the RMAN duplicate command with dbid and set newname for tablespace to recover the database to the new host
B. by creating a new database in the new host, and then using the RMAN recover command
C. by using the RMAN switch command to set the new location for the data files
D. by using the RMAN duplicate command with nofilenamecheck to recover the database to the new host
Correct Answer: B
Q.38
Which two statements are true about Resource Manager plans for individual pluggable databases (PDB plans)
in a multitenant container database (CDB)?
A. If no PDB plan is enabled for a pluggable database, then all sessions for
that PDB are treated to an equal degree of the resource share of that PDB.
B. In a PDB plan, subplans may be used with up to eight consumer groups.
C. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the CDB.
D. If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.
E. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based
on the shares provided to the PDB in the CDB plan
and the shares provided to the consumer groups in the PDB plan.
Correct Answer: A,E
Q.39
You are administering a database that supports a data warehousing workload and is running in noarchivelog mode.
You use RMAN to perform a level 0 backup on Sundays and level 1 incremental backups on all the other days of the week.
One of the data files is corrupted and the current online redo log file is lost because of a media failure.
Which action must you take for recovery?
A. Restore all the data files, recover them by using the recover database command, and open the database.
B. Restore all the data files, recover them by using the recover database noredo command,
and use the resetlogs option to open the database.
C. Restore the control file and all the data files, recover them by using the recover database noredo command,
and use the resetlogs option to open the database.
D. Restore the data file, recover it by using the recover datafilenoredo command,
and use the resetlogs option to open the database.
Correct Answer: C
Q.40
Examine the command to back up the ASM metadata:
ASMCMD>md_backup /backup/ASM_backup
In which three situations can you use the backup?
A. when one or more file directory paths are accidentally deleted from an ASM disk group
B. when one or more disks in an ASM disk group are lost
C. when all the ASM disk groups for the ASM instance are lost
D. when one of the disks in a disk group is accidentally unplugged
E. when the data file on an ASM disk group gets corrupted
Correct Answer: A,D,E
Q.41
Your database instance is started using an SPFILE. You are connected to cdb$root, as a DBA. You issue:
SQL> ALTER SYSTEM SET STATISTICS_LEVEL=ALL SCOPE=BOTH;
Which two statements are true about the statistics level parameter?
A. It is immediately set to all in all PDBs where the statistics_level parameter is not set.
B. It is immediately set to all only for cdb$root.
C. It is immediately set to all in the SPFILE and the CDB instance.
D. It is immediately set to all in only those pluggable databases (PDBs) where the value is set to typical.
E. It is set to all for all PDBs only in the SPFILE.
Correct Answer: C,D
Q.42
You issue commands in SQL*Plus as the Oracle owner, to enable multithreading for your UNIX-based Oracle 12c database:
CONNECT/AS SYSDBA
ALTER SYSTEM SET THREADED__EXECUTION = TRUE SCOPE=SPFILE;
SHUT DOWN IMMEDIATE
You then restart the instance and get an error:
STARTUP
ORA-01031:insufficient privileges
Why does the startup command return the error shown?
A. because the threaded architecture requires issuing a new connect / as sysdba from within sql*plus before issuing a startup command
B. because the threaded architecture requires connecting to the instance via a listener before issuing a startup command
C. because the threaded architecture requires restarting the listener before issuing a startup command
D. because the threaded architecture requires authentication using a password file before issuing a startup command
E. because the threaded architecture requires exiting from sql*plus
and reconnecting with sql*plus / as sysdba before issuing a startup command
Correct Answer: D
Q.43
A database is running in archivelog mode. You want to back up a 10 TB data file belonging to the users tablespace.
The backup of the data file is too slow.
What type of backup do you recommend to improve the performance of the backup?
A. multisection image copy backup by using RMAN
B. multisection parallel backup by using RMAN
C. cold backup after placing the tablespace in backup mode
D. image copy backup by using RMAN
E. cold backup after taking the tablespace offline
Correct Answer: D
Q.44
Your database is running in archivelog mode. Examine the parameters for your database instance:
LOG_ARCHIVE_DEST_l ='LOCATION=/disk1/arch MANDATORY'
LOG_ARCHIVE_DEST_2 ='LOCATION=/disk2/arch'
LOG_ARCHIVE_DEST_3 ='LOCATIO=/disk3/arch'
LOG_ARCHIVE_DEST_4 ='LOCATIONs/disk4/arch'
LOG_ARCHIVE_MIN_SUCCEED_DEST = 2
While the database is open, you notice that the destination set by the log_archive_dest_1 parameter is not available.
All redo log groups have been used.
What happens at the next log switch?
A. The database instance is shutdown immediately.
B. The database instance hangs and the redo log files are not overwritten.
C. The destination set by the log_archive_dest_1 parameter is ignored and the archived redo log files
are created in the next two available locations to guarantee archive log success.
D. The archived redo log files are written to the fast recovery area until the mandatory destination is made available.
Correct Answer: C
Q.45
Which two statements are true about RMAN duplexed backups?
A. It is not supported for image copies.
B. Duplex backups can be performed on either disk or media, but cannot be performed on media and disk simultaneously.
C. Duplex backups can contain only data files and control files.
D. It is only supported for backups to tape via media management interface.
E. For performing duplexed backups, the parallelism for the device must be set equal to the number of copies.
Correct Answer: B,C
Q.46
You want to move your existing recovery catalog to another database.
Examine the steps:
1) Export the catalog data by using the Data Pump Export utility in the source database.
2) Create a recovery catalog user and grant the necessary privileges in the target database.
3) Create a recovery catalog by using the create catalog command.
4) Import the catalog data into the new recovery catalog by using the Data Pump Import utility in the target database.
5) Import the source recovery catalog schema by using the import catalog command.
6) Connect to the destination database.
7) Connect as catalog to the destination recovery catalog schema.
Identify the option with the correct sequence for moving the recovery catalog.
A. 1, 6, 4
B. 1, 2, 6, 4
C. 1, 2, 3, 6, 5
D. 2, 3, 7, 5
Correct Answer: B
Q.47
You are administering a database that supports data warehousing workload and is running in noarchivelog mode.
You use RMAN to perform a level 0 backup on Sundays and level 1 Incremental backups on all the other days of the week.
One of the data files is corrupted and the current online redo log file is lost because of a media failure.
You want to recover the data file.
Examine the steps involved in the recovery process:
1. Shut down the database instance.
2. Start up the database instance in nomount state.
3. Mount the database.
4. Take the data file offline.
5. Put the data file online.
6. Restore the control file.
7. Restore the database.
8. Restore the data file.
9. Open the database with the resetlog option.
10. Recover the database with the noredo option.
11. Recover the data file with the noredo option.
Identify the required steps in the correct order.
A. 1, 2, 6, 3, 7, 10, 9
B. 1, 2, 6, 3, 8, 11, 9
C. 1, 3, 7, 10, 9
D. 4, 8, 11, 5
E. 1, 3, 8, 11, 9
Correct Answer: A
Q.48
You want to export the pluggable database (PDB) hr_pdb1 from the multitenant container database (CDB) CDB1 and
import it into the cdb2 CDB as the emp_pdb1 PDB.
Examine the list of possible steps required to perform the task:
1. Create a PDB named emp_pdb1.
2. Export the hr_pdb1 PDB by using the full clause.
3. Open the emp_pdb1 PDB.
4. Mount the emp_pdb1 PDB.
5. Synchronize the emp_pdb1 PDB in restricted mode.
6. Copy the dump file to the Data Pump directory.
7. Create a Data Pump directory in the emp_pdb1 PDB.
8. Import data into emp_pdb1 with the full and remap clauses.
9. Create the same tablespaces in emp_pdb1 as in hr_pdb1 for new local user objects.
Identify the required steps in the correct order.
A. 2, 1, 3, 7, 6, 9, and 8
B. 2, 1, 3, 5, 7, 6, and 8
C. 2, 1, 4, 5, 3, 7, 6, 9, and 8
D. 2, 1, 3, 7, 6, and 8
Correct Answer: A
Q.49
Your database is running on the host OUSERVER. You back up your database regularly using RMAN
and the backups are cataloged in a recovery catalog.
For testing purposes, you want to replicate your database to another host, OUSERVER1,
with the same directory structure. So, you copy the backups to the new host.
What must you do to make the database operational in OUSERVER1?
A. Restore the control file from the backup by using the CATALOGoption,
restore the data files by using the SET NEWNAME command, and recover the data files.
B. Restore the data files by using the NOCATALOGoption and use the SET NEWNAME command to change the location.
C. Restore the control file from the backup by using the NOCATALOGoption, and then restore and recover the data files.
D. Restore the data files from the backup by using the recovery catalog,
use the SWITCH command to change the location, and recover the data files.
Correct Answer: A
Q.50 You want the execution of large database operations to suspend, and then resume,
in the event of space allocation failures.
You set the value of the initialization parameter resumable_timeout to 3600.
Which two statements are true?
A. Suspending a statement automatically results in suspending a transaction and releasing all the resources held by the transaction.
B. Data Manipulation Language (DML) operations are resumable, provided that they are not embedded in a PL/SQL block.
C. A suspended statement will report an error if no corrective action has taken place during a timeout period.
D. Before a statement executes in resumable mode, the alter session enable resumable statement must be issued in its session.
E. A resumable statement can be suspended and resumed only once during execution.
Correct Answer: D,E