单项选择题

A. Boost the priority of batch jobs.B. Schedule batch r……

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.

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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）

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B. The defragfs command should not be run on a large JFS2 file system when running on a 32-bit kernel.
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