mysql8.0英文OCP考试第91-100题

Q91.Which three statements are true about MySQL Enterprise Firewall?

A)It is available only in MySQL Enterprise versions.    

B)On Windows systems, it is controlled and managed using the Windows Internet Connection Firewall control panel.

C)It provides INFORMATION_SCHEMA tables that enable views into firewall data.     

D)System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.    

E)It shows only notifications for blocked connections, which originated outside of your network’s primary domain.

F)Firewall functionality is dependent on SHA-256 and ANSI-specific functions built to the mysql.firewall table.

Answer:ACD

Q92.Which two statements are true about the mysql_config_editor program?

A)It provides an interface to change my.cnf files.

B)It manages the configuration of client programs.  (only work for mysql client)

C)It can move datadir to a new location.

D)It manages the configuration of user privileges for accessing the server.

E)It will use [client] options by default unless you provide –login-path.  (mysql = mysql –login-path=client)

F)It manages the configuration of the MySQL Firewall feature.

G)It can be used to create and edit SSL certificates and log locations.

Answer:BE

Q93.You are attempting to start your mysqld.

Examine this log output:

2019-12-12T22:21:40:353800z 0 [System] [DCY-010116] [Server] /mysql/bin/mysqld [mysld 8.0.18-comnercial starting as process 29740

2019-12-12T22:21:40:458802z 1 [ERROR] [DCY-012592] [InnoDB]Operating system error number 2 in a file operation.

2019-12-12T22:21:40:459259z 1 [ERROR] [DCY-012593] [InnoDB] The error means the system cannot find the patj specified.

2019-12-12T22:21:40:459423z 1 [ERROR] [DCY-012594] [InnoDB]If you are installing InnoDB,remember that must create directories yourself ,InnoDB does not create them.

2019-