1、a user wants to permanently added to the dba group. which of the following commands or processes can be used to accomplish this? A、chgrp 更改文件或目录的组所有权 B、chuser 更改用户属性 C、edit/etc/user
D、edit/etc/security/group
Answer: B
2、During reboot, the system hangs with an LED 0554 message that means,“The boot device could not be opened or a read failed.‖ Which of the following recovery procedures should be taken?
A Boot in maintenance mode and use fsck to check hd5
B Boot in maintenance mode, access the rootvg and check the /etc/inittab for corruption.
C Boot in maintenance mode, access the rootvg and rebuild the boot
image using the bosboot command.
D . Boot in maintenance mode, and reset the root password.
Answer:C
Bosboot : 创建引导映像
3. A production system needs to be upgraded from AIX V5.2 to AIX V5.3 . All system logs and users need to be saved. Which installation method will accomplish the upgrade? A. Update installation B. Migration installation C. Preservation installation
D. Mirror rootvg prior to a Preservation Installation Answer :B
4. An administrator is attempting to update a software product. The install is interrupted by a system failure. Which of the following commands would be used to clean up the improperly applied filesets? A. lppchk –C B. instfix –S C. installp –c D. installp –C Answer: D
installp 命令
用途:在一个兼容的安装软件包里安装可用的软件产品。 清除失败的安装：
installp -C [ -b ] [ -eLogFile ]
5. An administrator is ordering a new Power 550. They will mirror rootvg and are concerned about single point of failure. Which of the following features should be ordered?
A. Dual I/O planar, dual disk drives, dual SCSI adapters B. Dual disk drive enclosures, dual disk drives, extra media bay C. Dual disk drive enclosures, dual disk drives and dual SCSI adapters D. Dual I/O planar, extra media bay, dual disk drives Answer:C enclosures:机箱
6. During which boot phase is the rootvg first activated? A. Phase 1 B. Phase 2 C. Phase 3 D. POST Phase Answer: B
在第二阶段，可以使用 varyonvg 命令（名为 ipl_varyon 命令）的特殊版本来激活 rootvg 卷组
7. An administrator has just finished upgrading a system to AIX 5.3. If there are future problems, the system administrator would like to add an entry to the AIX errorlog to record each event. Which of the following commands can be issued for this purpose? A. /usr/bin/errmsg ―System upgraded to AIX 5.3‖
B. /usr/bin/errlog ―System upgraded to AIX 5.3‖ C. cat ―System upgraded to AIX 5.3‖ > /dev /err D. /usr/bin/errlogger ―System upgraded to AIX 5.3‖ Answer: D
errlogger 命令创建一个操作程序错误日志条目
8. A system was running properly until a reboot. Following the reboot, the system LED displayed cycles between 0223 and 0229. Which of the following procedures should be performed next? A. Boot into maintenance mode and repair the superblock B. Boot into maintenance mode and run fsck C. Boot into maintenance mode and run bosboot D. Boot into maintenance mode and check the bootlist Answer: D LED 223-229 - 无效的启动列表
1. 将钥匙模式切换到“服务”（或者 F5，对于那些没有钥匙锁的系统），并打开计算机的电源。
2. 如果显示正常继续，则将钥匙模式切换到“常规”并继续第3步。如果没有得到提示，则进入第 4 步。 3. 当您获得登录提示时，进行登录，并按照“使用 bootlist 命令”中所描述的过程来更改您的启动列表。然后继续执行第 7 步。
4. 按照“访问无法启动的系统”中所描述的过程来访问您的 rootvg，并继续执行第 5 步。 5. 使用下面的命令，确定启动磁盘：lslv -m hd5
6. 按照“使用 bootlist 命令”中所描述的过程来更改您的启动列表。 7. 关闭并重新启动您的系统。
9. How can an administrator determine how many physical partitions the
/dev/hd2 logical volume is using on each disk in rootvg? A. lslv hd2
B. lsvg rootvg, then lspv for each disk listed C. lsvg rootvg, then lslv for each disk listed D.lsvg rootvg Answer : B
10. An administrator needs to be able to list the number and size of backup sets on a tape. Which of the following procedures accomplish this?
A . Use the tcopy /dev/rmt0.1 until an end-of-tape error notification is
received.
B . Use the cpio –idmv < /dev/rmt0.1 until an end-of-tape error
notification is received.
C. Use the tar –tvf /dev/rmt0.1 repeatedly until an end-of-tape error
notification is received.
D. Use the dd if=/dev/rmt0.1 bs=128k count=EOT until an end-of-tape
error notification is received. Answer: A tcopy :复制磁带
cpio 命令：把文件拷贝进出归档存储器及目录 tar ：处理归档