Unix面试题（英文 附答案）2-2

21, There is a file with the following permissions: -rw-r-r- What rights does the owner's group have?  C   read  
22, Your system has a default mode of 666. You specify a umask value of 222. What will be the default permissions?  B   444  
23, Only files on the same file system can be hard-linked.A  True   
24, External file systems are usually mounted from the __ directory?  C  /mnt 
25, Temporary files are generally stored in the _____ folder.  B   /temp
26, What lilo option will list the name and location of available kernels?
A   -q  
27, Which lilo.conf parameter will specify the amount of time the system will wait before booting to the default image? B  delay    
28, What command can be used to print out system boot messages?A   dmesg   
29, You want to add information to a previously created tar file. How would you do this?   C  use the tar command with the -r switch 
30, What is the name of the configuration file used by the syslog daemon?
  C   syslog.conf  
31, What syslog.conf facility represents httpd processes? D   daemon
32, What syslog.conf facility represents the line printer?   B   lpr 
33, What syslog.conf facility is used to create timestamps in log files?
C   mark 
 34, Which daemon will send kernel alert messages.B  syslogd 
 35, You have just added the following line to your syslog.conf file: lpr.info /dev/console. But, line printer messages are not being sent to the console. What is most likely the problem?
A   after modifying the syslog.conf file, the syslog daemon needs to be
36, What run level represents multi-user?D   3
37, What file does init processes use as its control file?   D   /etc/inittab
38, Which of the following can be used to switch your system to run level 1?
 B  init 1   
39, What option can be used with the shutdown command to cancel a pending shutdown?B  shutdown -c  
40, What option is used with the useradd command to specify the user's login shell?   C   -s