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计算机考试 | IBM认证考试

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单选题 Which of the following is true about rmss?()

A

 rmss is a part of performance toolbox and stands for Reduced Memory System Simulator

B

 rmss is a part of perfpmr and stands for Real Memory System Simulator

C

 rmss is part of the standard bos.perf filesets and stands for Redundant Memory System Simulator

D

 rmss is part of  WLM and stands for Real Memory System Simulator

单选题 Which of the following commands should be used to identify packet sequence problems?()

A

 ping and arp

B

 lsattr and ifconfig

C

 netstat and iostat

D

 iptrace and tcpdump

单选题 Which of the following procedures WILL NOT increase contiguous free space on a the filesystem /data1, located on /dev/lv01, that is heavily fragmented?()

A

 Run defragfs -r /data1; defragfs /data1

B

 Run defragfs -r /dev/lv01; defragfs /dev/lv01

C

 Back up the filesystem by name, unmount the filesystem, recreate the filesystem by running mkfs /dev/lv01, and restoring the data from the backup.

D

 Back up the filesystem by inode, unmount the filesystem, recreate the filesystem by running mkfs /dev/lv01, and restoring the data from the backup.

单选题 When trying to run topas on an AIX 4.3.x system, the system administrator gets the error message "ksh: topas:  not found."   Which of the following options is the most likely reason this occurred?()

A

 The fileset bos.perf.tools is not loaded on this system.

B

 The fileset perfagent.tools is not loaded on this system.

C

 The command topas is only available in AIX version 5.x.

D

 The path variable does not include /usr/samples/kernel/. Either add it to the .profile or cd to that location and run the command again.

单选题 Using the schedtune output, memory is considered over-committed if:()

A

 more than one process is spinning.

B

 more than 4 processes become active.

C

 the system schedules more than 16 processes.

D

 the pageouts divided by page steals is greater than 1/h.

单选题 Which of the following statements is TRUE concerning the po column of the vmstat command?()

A

 The sys is high when po is high.

B

 The po represents the number of page steals.

C

 The low values usually indicate insufficient paging space.

D

 The low values usually indicate sufficient memory for the load.

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