AIX 试题

.有一台P5 570,有好几个LPAR，用户想使用mksysb实现系统备份，并且达到不用干预的自动备份，而且可以在另一个地方使用这些备份来恢复系统。

应该使用哪个mksysb的解决方案？
A.使用1个本地DVD-ROM驱动器
B.在NIM Master上用NFS mount
C.使用1个SSA阵列并镜像数据
D.1个本地磁带机并使用DLPAR在LPAR之间移动磁带机
2.After applying patches, no preventative steps were taken. As a result, the
system hangs during the reboot with the following message: starting tcp/ip daemons. All of the following procedures are applicable to fixing the problem except:
A. Checking /etc/inittab
B. Checking /etc/rc.tcpip
C. Checking name resolution
D. Running the bosboot command to fix bootable image
ing SMIT, a support specialist is installing a PTF to correct a problem. The installation has failed. Where would the support specialist look to troubleshoot the cause of the installation failure?
A./smit.log
B./image.data
C./tmp/bos/smit.log
D./var/adm/ras/bosinstlog
4.A system administrator is logged onto the local system, Carolina, and creates a telnet session on a remote system, Florida, to remotely start any application. The following error message is displayed:
cannot open DISPLAY:
The system administrator proceeds to enter the following command in response to the error message:
export DISPLAY=:0.0
The system administrator restarts the application and receives the same error message:
cannot open DISPLAY
The system administrator echoes the DISPLAY variable, determines that it is set to , and performs an nslookup of Carolina, which returns a good TCP/IP address of 9.90.90.9, as expected. The system administrator loaded both servers and knows that the graphics subsystem is properly installed on both systems and is started at boot time.
The system administrator exports the DISPLAY variable from Florida to Carolina, and still cannot connect. What should be the next logical step?
A.Issue the netstat -i command to check the network.
B.From Carolina, issue the lshost command to see if Florida is allowed host access.
C.From Carolina, issue the xhost list command to see if Florida is allowed host access and if not, issue the xhost add Florida command.
D.From Carolina, issue the xhost command to see if Florida is allowed host access and if not, from Carolina, issue the xhost + Florida command.
5.A user has accidentally removed the boot logical volume from the system. In
order to recreate the boots logical volume, which of the following procedures should be performed?
A. Create hd5 on a physical partition in the rootvg.
B. Create a logical volume called hd5 within the rootvg, and reboot the system.
C. Create a file system mounted on /blv and copy the /unix file into the /blv directory.
D. Reconfigure a logical volume called hd5 on hdisk0, with the same size as the root file system.
6.Which one of the following commands can show statistics for each interface?
A. no
B. lsattr
C. vmstat
D. netstat
7.A system administrator responding to user response time complaints has narrowed down the problem to poor I/O response time. What command should the administrator issue to determine if a particular logical volume is fragmented?
A.defragfs -q file system name
B.lslv -m logical volume name
C.lsvg -l volume group name
D.fileplace -p file name
8.While attempting to log in, the following message was received:
‘All available login sessions are in use.’
Which of the following procedures should be performed first?
A. Check /etc/security.
B. Check /etc/password.
C. Increase the number of AIX license users.
D. Reboot the system into service mode and run fsck.
9.Which of the following must be performed in order to change the primary name server a system is pointing to?
A.Run ypwhich.
B.Edit the /etc/hosts.
C.Edit the /etc/resolv.conf file.
D.Run no -o name_server=.
10.A system administrator is experiencing performance problems and runs the vmstat command. The output of vmstat is shown below. What can be concluded from this output?
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 10
3 52 1
4 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 20
6 120 29 13 5 0 79
4 1 9200 11027 0 0 0 0 0 0 207 131 32 9 8 0 72
A.The machine is I/O bound.
B.The machine needs its memory optimized.
C.The machine needs a FDDI card installed.
D.A user program is causing unnecessary paging.
11.A system administrator is running a remote archive to the machine whose host name is Best. The following command was used:find /tmp -print | backup -ivqf | rsh Best "dd of=/dev/rmt0 \ bs=512"
After the files are listed, the following error message occurs:
backup: permission denied Which of the following options is the most probable cause?
A. The machine Best does not exist.
B. The $HOME/.rhosts file on the machine Best is not set up properly.
C. The system administrator is trying to back up files on a local machine without having access.
D. The bs field on the dd command is different from what the block size of the tape drive indicates.
12.Which of the following is backed up with the mksysb command when a system consists of the volume groups rootvg, vol2, and vol3?
A. All files in rootvg, vol2, and vol3
B. All locally mounted file systems in the rootvg
C. All files in the root volume group
D. All files in the root volume group; excluding the odm files
13.Which one of the following commands indicates physical slot locations for every adapter installed?
A. lscfg
B. lslpp
C. lsattr
D. ifconfig
14.After rebooting, the support specialist decides to check the error log for errors. Which of the following is the correct command to use?
A.crash
B.errpt -a
C.errlog -a
D.errlog -k
15.Which one of the following network masks allows room for exactly 510 hosts?
A. 255.128.0.0
B. 255.254.0.0
C. 255.255.254.0
D. 255.255.255.128
16.The system administrator of company ABC has been asked to restore some
files from an old backup of the /home file system. The restore is failing because the block size of the tape drive is incorrect. The system administrator does not know to what block size the backup was written. What command can be used to determine the block size of the tape?
A.tar
B.tctl
C.cpio
D.tcopy
17.The system administrator at XYZ Company has noticed peaks in system activity occurring in the early evening on the development server. It is suspected that this activity is being caused by users scheduling jobs to be run via the at command. How can the system administrator find all jobs currently scheduled to run via the at command?
A.lsat -l.
B.at -l ALL.
C.Browse the files in the /var/spool/at/atjobs directory.
D.Browse the files in the /var/spool/cron/atjobs directory.
18.A system administrator is able to log in to system A’s console and other systems can ping system A, but the system administrator is unable to Telnet or rlogin to system A from any other system on the network. Which of the following is the most likely cause of this problem?
A.The inetd is not running on system A.
B.The routed is not running on system A.
C.The routing table on system A is corrupted.
D.The domain name server is not functioning correctly.
19.Which of the following commands will find all the rc files in /etc and display them?
A. ls -l /etc/r?
B. ls -l /etc/rc.d/*
C. ls -l /etc/rc? | grep -v ^d
D. ls -l /etc/rc* | grep -v ^d
20.All of the following are times when the minimum configuration smit screen for TCP/IP should be used except:
A. When setting a default route
B. When reconfiguring TCP/IP from scratch
C. When changing the IP address of one adapter in the system
D. When configuring the first adapter in a newly installed machine
21.When I import VG, an error occurs: PV missing. The VG is not mirrored, to recover most of the data, which command could be used:
A. turn quorum off, import it again
B. use redefinevg command
C. exportvg, and use redefinevg command
D. direct varyonvg with -f parameter to force varyon
22.Given the information provided in the following example, which of the following procedures will successfully resolve the problem before rebooting in
normal mode?
After an AIX server fails to boot in normal mode with an LED 553 displayed, begin to debug the problem. LED 553 indicates that IPL phase 1 is complete. Boot the system in service mode using bootable media and select the maintenance shell, then gather the following information:
# df /dev/hd4
Filesystem 512-blocks Free %Used Iused %Iused Mounted on
/dev/hd4 16384 6976 58% 1023 25% /
# df /dev/hd3
Filesystem 512-blocks Free %Used Iused %Iused Mounted on
/dev/hd3 32768 14096 57% 369 10% /tmp
# df /dev/hd2
Filesystem 512-blocks Free %Used Iused %Iused Mounted on
/dev/hd2 671744 176552 74% 13775 17% /usr
--------------------------------------------------------------------
: (#)49 1.28.2.7 src/bos/etc/inittab/inittab, cmdoper, bos411,
:9430C411a 7/26 /94 16:27:45
:
: COMPONENT_NAME: CMDOPER
:
: ORIGINS: 3, 27
:
: (C) COPYRIGHT International Business Machines Corp. 1989, 1993
: All Rights Reserved
: Licensed Materials - Property of IBM
:
: US Government Users Restricted Rights - Use, duplication or
: disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
A. Edit /etc/inittab and correct any erroneous entries.
B. Delete unnecessary files in the / (root) file system.
C. Change the permissions on /etc/environment so the root user can run the
file.
D. Run fsck on the root VG and recreate the log device with the
/usr/sbin/logform /dev/hd8 command
23.Once a file has been edited, which one of the following actions must occur before clients can use the bootp server?
A. telinit q
B. refresh -s inetd
C. startsrc -s bootpd
D. No action is required
24.Which of the following commands should be used to determine the microcode level of a system?
A. lsattr -El
B. lscfg -vl
C. lsCs ssa
D. lsdev -Cc disk
25.A system administrator wishes to determine if a newly configured tape drive is correctly added to the ODM database. Which command would the administrator use?
A.odmshow
B.odmadd
C.odmget
D.odmcreate。