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IBM AIX 7 Administration Sample Questions:

1. Automated scripts on an AIX system require secure non-root access to another AIX instance. Secure Shell (SSH) was the method chosen and installed on both systems. How can anadministrator use SSH to create secure automated jobs without storing passwords in the automated scripts?

A) issue ssh-keygen -t dsa on the source as non-root user append source id_dsa.pub
contents to the authorized_keys file on the target restart sshd daemon
B) issue ssh-keygen -t dsa on the source as non-root user append source id_dsa.pub contents to target /etc/ssh/sshd_config file restart sshd daemon
C) issue ssh-keygen -t dsa on the source as root append source id_dsa.pub contents to /etc/ssh/ssh_config file on the target restart sshd daemon
D) issue ssh-keygen -t dsa on the source as non-root user append source id_dsa.pub contents to the authorized_keys file on the target

2. A user wants to run a batch job repetitively, but requires that each invocation starts five hours after the previous run finishes. What strategy will accomplish this?

A) Add an entry to the crontab to submit the job every five hours.
B) Create a file containing the job commands, using the 'at' command as the final line of the file.
C) Submit the job with 'at', using the average run time of the job plus five hours as the interval.
D) Create a wrapper script that launches the job in the background and then sleeps for the designated period before launching it again.

3. An administrator needs to limit the size of the filesystem cache. Which tuning parameters need to be adjusted?

A) minperm and maxperm
B) sb_min and sb_max
C) minfree and maxfree
D) minpgahead and maxpgahead
E) minfreemem and maxfreemem

4. After recovering the rootvg from a backup, how can an administrator determine which disks
contain the DB2 volume group?

A) Use thelqueryvg command to show the logical volumes on the disk.
B) Use thelsvg command to display the volume group name on the disk
C) Use the alt_disk_copy command to read the VGDA on the disk.
D) Use the lspv command to show the logical volumes on the disk.

5. On a system that currently boots from hdisk0, what command will extend the boot order to include hdisk1?

A) bosboot-e hdisk0 hdisk1
B) bootlist-ahdisk0 hdisk1
C) bootlist-m normal hdisk0 hdisk1
D) bosboot-M norm hdisk0 hdisk1

Solutions: