An administrator needs to determine what the default run level of a system is. 
Which command would be used（）

单项选择题An  administrator  can  create  logical  volumes  and  then  add  file  systems  to  them，  or  create  the  file  system directly.  What is an dvantage of the two-step approach instead of the one-step approach（）

A.The number of bytes per inode can be specified.
B.Placement of the filesystem on the disk can be specified.
C.The jfslog can be specified on creation of the filesystem.
D.Either a JFS or JFS2 filesystem can be created on the logical volume.

单项选择题An administrator suspects someone is modifying a sensitive file， and wants to log access information for this file.  Which of the following AIX component accomplishes this（）

A.audit
B.syslog
C.TCB
D.sysck

单项选择题A user reports that they cannot cd to  tmp application. A system administrator entered the following    command： Is -Id  tmp application   drw-r-r- 4 root system 512 Jan 15 14：09 application Which of the following is the most likely cause of the  problem（）

A.The /tmp/application should be globally writable.
B.The /tmp/application directory should be executable.
C.The /tmp/application directory should be owned by the user.
D.The /tmp/application directory should have the sticky bit set

单项选择题An administrator performs a full backup every Saturday evening and daily incremental backups the  rest  of  the  week.  The  system  failed  on  Thursday  and  must  be  restored.   Which  backup  tapes  will  be  required to restore the system to its most recent recoverable state（）

A.Saturday’s full backup tape
B.Wednesday’s backup tape
C.Saturday’s full backup and Wednesday’s incremental backup tapes
D.Saturday’s full backup and Sunday’s through Wednesday’s incremental backup tapes

单项选择题Howcanadirectorynamed dirlbeexcludedduringarestoreoffilesbackedupbynamewiththebackupcommand（）

A.By using the restore -x option followed by /dirl
B.By adding an entry in the /etc/restore.exclude file
C.By using the restore -i option to enter interactive mode and executing the command：delete /dirl
D.By using the restore -i option when running restore to specify a text file containing ’/dirl1 as one of the  lines in it