A. Deallocate rootvg mirror B. Use ho replace manager C. Break rootvg mirror
D. Deallocate LPs from failed disk Answer: C
20 . An administrator plans to attach an IBM DS6000 and needs to know if the fibre channel adapter is at the latest firmware level. Which of the following is the fastest way for the administrator to determine the latest supported microcode level? A. Call Techline
B. Validate via DS6000 menu C. Access IBM Storage Website D. Contact the IBM Business Partner Answer: C
21. Which disk configuration provides the fastest write performance with fault tolerance? A. RAID 0 B. RAID 6 C. RAID 5 D. RAID 1+ 0 Answer: D
22. Following a system boot, the display indicates that previously detected hardware is missing. Which of the following commands would identify the missing hardware? A. diag 执行硬件问题确定 B. lscfg 显示系统的配置信息、诊断信息和重要产品数据（VPD）信息 C. cfgmgr通过运行“配置规则”对象类中指定的程序来配置设备并可选择安装设备软件 D. lsslot 显示动态可重新配置的插槽（比如热插拔）及其特性 Ansewer: A
23. How can a system administrator determine if a system is running in 32-bit or 64-bit mode?
A. Use the ls –al to see if /unix is linked to /usr/lib/boot/unix_64 B. Check the /etc/inittab to see if there is a load64bit entry C. Use ?prtconf -c‘ to see if the system is 64-bit enabled
D. Use the lslpp command to see if the bos.mp64 fileset is installed Answer: A
# ls -al total 5528
drwxr-xr-x 5 bin bin 512 Jan 09 2003 . dr-xr-xr-x 31 bin bin 4608 Jul 26 2003 .. drwxr-xr-x 2 bin bin 512 Feb 21 1999 bin -r-x------ 1 root system 3894 Mar 27 1997 bootutil -r--r----- 1 root system 7440 Feb 19 1997 chramfs
-r-x------ 2 root system 1496 Apr 12 1996 disable_hibernation -r-x------ 2 root system 1496 Apr 12 1996 enable_hibernation -rw-r----- 1 root system 14761 Jul 23 1997 getrootfs -r-xr-x--- 1 root system 3890 Mar 27 1997 mergedev drw-rw-r-- 2 root system 512 Jan 09 2003 network
drwxr-xr-x 2 bin bin 2048 Jul 26 2003 protoext -r-xr-xr-x 1 root system 13100 Mar 27 1997 restbase -r-------- 1 root system 2594 Apr 12 1996 rs6k.cd.proto -r-------- 1 root system 3426 Apr 12 1996 rs6k.disk.proto -r-------- 1 root system 3409 Apr 12 1996 rs6k.tape.proto -r-x------ 1 root system 9877 Feb 01 1997 srvboot -r-xr-xr-x 1 bin bin 11964 Feb 19 1997 ssh -r-sr-xr-x 3 root system 29388 Jan 30 1999 tftp
lrwxrwxrwx 1 root system 21 Feb 21 1999 unix -> /usr/lib/boot/unix_mp -r-xr-xr-x 1 root system 2720118 Dec 22 1999 unix_mp -r-xr-x--- 1 root system 5921 Apr 12 1996 update_proto #
24. Which of the following commands would a system administrator run to validate /etc/tunables/nextboot after manually editing? A. ksh –n nextboot B. tunsave –a –f nextboot C. tuncheck –r –f nextboot D. tunsave nextboot Answer: C
tuncheck 命令验证可调文件。检查指定文件中列出的所有可调参数的范围和相关性。如果检测到问题，则发出警告
1. 要检查在重新引导过程中是否能应用 /etc/tunables/nextboot，输入： tuncheck -r -f nextboot
25. Which of the following disk protection methods would be used to provide the maximum amount of data availability? A. RAID 0 B. RAID 1 C. RAID 3
D. RAID 5 Answer: B
26. A user is complaining that they ran out of paging space. Which of the following will address this and provide best performance? A. Expand the default paging space to the largest possible size B. Create a new larger paging space
C. Create additional paging space of equal size on different disks D. Reboot system Amswer: C
27. Given the following scripts, what output would be generated?
/usr/local/bin/script1 #!/usr/bin/ksh VAR1 = red
export VAR1 = green VAR1 = blue
/usr/local/bin/script2 VAR1 = yellow /usr/local/bin/script2 #!/bin/ksh
Echo ―The sky is ${VAR1}.‖
A. The sky is red B. The sky is blue C. The sky is green D. The sky is yellow Answer: C
28. Which of the following commands will increase the contiguous free space of a file system without having to add additional partitions? A. chfs B. fsck C. chlv
D. defragfs 增加文件系统的邻接可用空间 Answer: D
defragfs 命令通过重新组织分配使空间邻接而不是散布在整个磁盘从而增加了文件系统邻接可用空间。要整理碎片的文件系统可以通过指定 Device 变量来指定，它是逻辑卷的路径名（例如 /dev/hd4 ）。它同样可以用 FileSystem 变量来指定，它是 /etc/filesystems 文件中的安装点。
29. What is the most likely problem with this script? --------------------------------------------
VAR = 1
((VAR=$VAR+1)) While [$VAR –lt 10] do
echo $VAR done
------------------------------- A. #!/bin/ksh line is missing
B. Variable name VAR is not properly initialized C. Loop variable is not incremented inside the loop D. Replace brackets with braces Answer: C