单项选择题
When a system has both online transaction processing as well as large batch processing， which of the following common procedures will best help to improve system performance？（）
A. Boost the priority of batch jobs.
B. Schedule batch runs to reduce contention with OLTP.
C. Schedule OS maintenance such that it includes frequent application of PTFs.
D. Perform incremental backups of transaction processing and full backups of batch processing.
相关考题
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单项选择题
DataistransferredbetweentwoserversusingNFS，whereoneserverisconfiguredwithtokenring，andtheothersystemisconfiguredwithethernet.Itisdiscoveredthattheperformanceisgreatlyreducedduringthistransfer.Whichofthefollowingstepsshouldbetakentoimproveperformance？（）
A. Reduce MTU on token ring system to match ethernet system using ifconfig command （i.e. ifconfig tr0 mtu 1500）
B. Reduce MTU on token ring system to match ethernet system using no command （i.e. no -o mtu=1500）
C. Increase MTU on ethernet system to match token ring system using ifconfig command （i.e. ifconfig en0 mtu 4096）
D. Increase MTU on ethernet system to match token ring system using no command （i.e. no -o mtu=4096） -
单项选择题
ThesystemadministratorhasdeterminedthatanewJFSlogneedstobecreatedonadifferentdisk，inordertodecreaseanI/Obottleneck.Whichofthefollowingstepsarethemostcorrect？（）
A. mklv -t jfslog -y LVname VGname 1 PVname logform /dev/LVname chfs -a log=/dev/LVname /filesystemname m ount and unmount filesystem
B. mklv -t jfslog -y LVname VGname PVname unmount filesystem vi /etc/filesystems， change entry for lv to point filesystem to new JFS log mount filesystem
C. mklvcopy -a jfslog -y LVname VGname 1 PVname chfs -a log=/dev/LVname /filesystemname unmount and mount file system
D. mklvcopy -t jfslog -y LVname VGname 1 PVname logform /dev/LVname vi /etc/filesystems， change entry for lv to point filesystem to new JFS log unmount and mount filesystem -
单项选择题
WhichofthefollowingstatementsareFALSEconcerningthedefragfscommand？（）
A. The defragfs command should not be run against file systems and logical volumes that contain mostly transitory information， such as /tmp.
B. The defragfs command should not be run on a large JFS2 file system when running on a 32-bit kernel.
C. The defragfs command can improve file system performance by increasing the file system’s contiguous free space.
D. The defragfs command can only be run against file systems that are mounted with read-write permissions.
