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（）

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

单项选择题An administrator is installing a C compiler on a system. According to the compiler’s documentation， the AIX fileset bos.adt.libm must be installed prior to the installation of the compiler.  Which of the following commands would verify installation of the prerequisite fileset（）

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

单项选择题An administrator is ordering a new Power 550. They will mirror rootvg and are concerned about single points of failure.  Which of the following features should be ordered（）

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

单项选择题A 1500 page print job was sent to the  pel  queue. The job was running for several minutes before it  was determined that the job was not needed.  Which of the following options will delete the job（）  Ipstat   Queue Dev Status Job Files User PP %   Hks Cp Rnk   pd pel RUNNING 201 STDIN.27648 root 750 10   1000 1 1

A.kill 201
B.cancel 201
C.disable pel
D.Ip-d/var/spool/lpd/STDIN.27648