AIX测试题

1. During the first reboot after the AIX Version 4.3 operating system installation process has completed, what is the first screen the administrator will see? A. Login prompt B. Root shell prompt C. Installation Manager D. Configuration Assistant

2. The system administrator realizes that paging space, paging12, must first be removed from hdisk12. Which of the following is the correct sequence of events?

A. chps -an paging12, reboot, rmps paging12 B. swapoff paging12, rmps paging12 C. swapoff paging12, reboot, rmps paging12

D. chps -an paging12, swapoff paging12, rmps paging12

3.A system administrator is experiencing performance problems and runs the vmstat command. The output of vmstat is shown in the following exhibit.

procs memory page faults cpu

----- ----------- ------------------------ ------------ -----------r r b avm fre re pi po fr sr cy in sy cs us sy id wa 2 0 22534 1465 0 0 0 0 0 0 238 903 239 77 23 0 0 2 0 22534 1445 0 0 0 0 0 0 209 1142 205 72 28 0 0 2 0 22534 1426 0 0 0 0 0 0 189 1220 212 74 26 0 0 3 0 22534 1410 0 0 0 0 0 0 255 1704 268 70 30 0 0 2 1 22557 1365 0 0 0 0 0 0 383 977 216 72 28 0 0 What can be concluded from this output? A. The machine is CPU bound.

B. The machine needs memory optimized. C. The machine needs a FDDI card installed. D. A user program is causing unnecessary paging.

4.In order to increase the size of a file system, the system administrator must:

A. Unmount the file system.

B. Boot the system into single user mode.

C. Have enough free physical partitions within the volume group. D. Back up the file system, change the size, and restore the file system.

5.What command can be run from the command line to permanently remove tty5 from the system. A. rmdev -l tty5 B. rmdev -dl tty5 C. mkdev -dl tty5

D. odmdelete -q \"name=tty5\" -o PdAt

6.Which of the following commands can be used to determine the serial port settings.

A. lscfg -vl ttyXX B. ls -l /dev/ttyXX C. lsattr -El /ttyXX D. lsdev -C |grep ttyXX

7.Which of the following commands can be used to verify the success of an operating system upgrade. A. oslevel B. lslpp -h bos.obj C. what_fileset -v D. lsattr -Vl bos.rte

8.In order to increase the size of a file system, the system administrator must:

A. Unmount the file system.

B. Boot the system into single user mode.

C. Have enough free physical partitions within the volume group. D. Back up the file system, change the size, and restore the file system.

9.What is the correct sequence of commands to mirror a volume group. 1. extendvg 2. mirroring 3. syncvg 4. set quorum 5. mkfscopy 6. reorgvg A. 1, 2, 3, 4 B. 1, 5, 3, 4 C. 1, 2, 4, 6 D. 6, 5, 4, 3

10.A system administrator would like to list all paging spaces residing on the server. What is the correct syntax of the command in order to accomplish this. A. lsps -a B. lsps -s C. lsps -l D. lsps -all

11.A system administrator runs the vmstat command. The output of vmstat is shown in the following exhibit. kthr memory page faults cpu

----- ----------- ------------------------ ------------ ----------- r b avm fre re pi po fr sr cy in sy cs us sy id wa 2 0 9200 11027 0 0 0 0 0 0 103 52 14 14 16 0 69 2 1 9200 11027 0 0 0 0 0 0 207 251 29 12 11 0 67 3 1 9200 11027 0 0 0 0 0 0 207 120 29 9 11 0 80 5 1 9200 11027 0 0 0 0 0 0 206 120 29 13 5 0 79 4 1 9200 11027 0 0 0 0 0 0 207 131 32 9 8 0 72

Based on this output, what is the average CPU idle time in minutes A. 45.5 B. 75.3 C. 44.04 D. 73.4

12.Which of the following files contains the logical volume and filesystem information that mksysb saves during a system backup. A. /fs.size B. /image.data C. /bosinst.data D. /install.data

13.While attempting to write a 200 MB file to the user data file system with 1 GB free space, the system responds with the message that it is out of space. Which of the following could be causing this? df output.

Filesystem 1024-blocks Free %Used Iused %Iused Mounted on /dev/hd4 40960 3744 91% 2416 12% /

/dev/hd2 1003520 35280 97% 37596 13% /usr /dev/hd9var 36864 24540 34% 1236 14% /var /dev/hd3 167936 8108 96% 844 2% /tmp /dev/hd1 40960 20232 51% 1364 14% /home

/dev/datalv 1224704 1023952 16% 6309 7% /user/data

/dev/datalv2 16384 5884 65% 1018 25% /data2 /dev/userlv2 12288 11608 6% 49 2% /user2 /dev/userlv 12288 5002 59% 643 7% /user /dev/foolv 12288 121 99% 49 2% /foo

A. The /user/data filesystem is mounted read only. B. The permissions on the /user filesystem is wrong. C. The permissions on the /user/data file system is wrong.

D. /user is preventing you from reaching the /user/data file system.

14.A system has one internal disk drive (hdisk0) and one external disk drive (hdisk1).

hdisk0 is a 2.2 GB SCSI/2 Fastwide disk drive and contains a volume group called rootvg.

hdisk1 is a 4.5 GB SSA drive and contains a volume group called appsvg.

The external SSA drive has over 3.0 GB of free space.

The system administrator would like to make a mirrored copy of a 500 MB logical volume that currently is on hdisk0. What would prohibit the system administrator from establishing a mirrored copy between the internal and external disk drives.

A. The disks are not the same physical size.

B. The disks are not within the same volume group. C. AIX does not support mirroring logical volume mirroring. D. The disks are not the same drive type (for example, SSA verses SCSI/2).