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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

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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

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A.installp
B.instfix
C.Ippchk
D.Islpp

单项选择题An administrator has a two-disk volume group （testvg） with one logical volume （testlv） which has just  been mirrored across both disk drives.  Which of the following commands can be used to turn off quorum（）

A.chvg -Qn testvg
B.chlv -Qn testvg
C.varyoffvg testvg； varyonvg -Qn testvg
D.varyoffvg testvg； exportvg testvg； importvg -Qn testvg； varyonvg testvg

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A.Dual I/O planar， dual disk drives， dual SCSI adapters
B.Dual disk drive enclosures， dual disk drives， extra media bay
C.Dual disk drive enclosures， dual disk drives and dual SCSI adapters
D.Dual I/O planar， extra media bay， dual disk drives