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Question 1.
Which of the following command lists the logical volumes on the root volume group (rootvg)?
A. lsvg –l
B. lsvg –M
C. lsvg –S
D. lsvg –Y
Answer: A
Question 2.
Which of the following command can be used to create a RAM file system.
A. mkboot
B. mkram
C. mkfs
D. mksys
Answer: C
Question 3.
Which sar option generates real-time disk I/O statistics?
A. sar -q
B. sar -P
C. sar -d
D. sar -D
Answer: C
Question 4.
Which of the following commands can be used to determine if a disk drive is causing a bottleneck?
A. vm stat
B. file place
C. io stat
D. lvm stat
Answer: C
Question 5.
Using output from "vmstat 2 8," which of the following options is most appropriate to consider when determining if a system is experiencing memory thrashing?
A. cy ! =1
B. IT ! =0
C. po/fr > 1/6
D. fr/po > 1/6
Answer: C
Question 6.
Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?
A. 20%
B. 40%
C. 60%
D. 80%
Answer: A
Question 7.
Which command will give a kernel stack trace back?
A. trace
B. traceson
C. trcon
D. trcrpt
Answer: A
Question 8.
Output from the command "sysdumpdev -L" is provided below.
Which of the following reasons best describes why the dump failed?
Device name: /dev/hd6
Major device number: 10
Minor device number: 3
Size: 6217728 bytes
Date/Time: Wed Feb 22 14:58:38 CST1995
Dump status: 0 Failed to copy the dump from /dev/hd6 to /var/adm/ras/vmcore.1.
Allowed the customer to copy the dump manually
A. The dump failed and therefore did not copy to /dev/hd6.
B. The dump and copy command failed because the dump status =0.
C. The dump to /dev/hd6 failed because the logical volume was not large enough to hold the
dump.
D. A good dump was taken to hd6, but failed when the dump was copied to a file during the boot.
Answer: D
Question 9.
All of the following types of statistics are reported by the iostat command tool EXCEPT:
A. Free memory
B. CPU statistics
C. Disk statistics
D. Terminal statistics
Answer: A
Question 10.
Which system resources does WLM have the capability to control?
A. CPU, Memory and Network I/O
B. CPU, Memory and Disk I/O
C. CPU and Memory
D. CPU and Disk I/O
Answer: B
Question 11.
Which of the following commands should be used to check whether a system dump is valid and readable?
A. kdb
B. snap -d
C. dbx -vmcore
D. od /dev/sysdumpdev
Answer: A
Question 12.
What does the FREQ column show when running the tprof option?
A. Total amount of Ticks used by all users
B. Total amount of Ticks used by all processes
C. Total amount of Ticks used by a specific user
D. Total amount of Ticks used by a specific type of process
Answer: D
Question 13.
Which of the following commands should be used to observe the number of system calls per second?
A. sar
B. iostat
C. svmon
D. vmstat
Answer: D
Question 14.
Which of the following outputs will best indicate if a system is CPU bound?
A. %idle < 10%
B. %usr + %sys > 80%
C. %sys + %wio > 80%
D. %wio + %idle > 80%
Answer: B
Question 15.
Given the information below what seems to be the bottleneck?
Kthr memory page faults cpu
------ ------------ ----------- -------- ---------
r b avm fre IT pi po fr sr cy in sy cs us sy id wa
0 0 3727755 128 0 0 0 0 0 0 118 316 115 44 12 42 2
8 2 3721980 128 123 1238 543 0 0 0 1330 138509 1657 69 13
16 3
6 2 3721930 128 163 1583 1534 0 0 0 929 24681 1287 56 24 17
5 2 3721907 128 108 1333 1456 0 0 0 1155 8819 1736 62 6 32
6 2 3721863 128 174 1586 1437 0 0 0 1330 10865 2398 61 10
27 1
A. The machine is running out of memory.
B. The machine is running out of CPU.
C. The machine is running out of threads.
D. The machine is running out of paging space.
Answer: A
Question 16.
Which of the following command can be used to display a history of previous run levels?
A. fwtmp
B. mkboot
C. mkfs
D. mksys
Answer: A
Question 17.
Which sar option generates real-time disk (I/O statistics)?
A. sar -q
B. sar -P
C. sar -d
D. sar -D
Answer: C
Question 18.
If a system administrator wants to show only a disk report for disk2, at two second intervals, what is the correct command to run?
A. iostat disk1 1
B. iostat -d disk1 2
C. iostat disk2 1
D. iostat -d disk2 2
Answer: D
Question 19.
Which of the following procedures should be performed to minimize possible problems for a customer when updating software?
A. Apply the updates without committing.
B. Commit the new updates to be certain there is no change after the next reboot.
C. Update one file set at a time and test to ensure that it works before updating the next file set.
D. No action is necessary since the software can always be uninstalled and re=installed.
Answer: A
Question 20.
A customer needs to remove an unnecessary, but active paging space called paging00 on an AIX 5L system.
Which of the following procedures should be used to properly remove the paging space with the least amount of disruption?
A. Remove the paging space with the rmps command.
B. Disable the paging space with the chaps command, swap off /dev/paging00, and remove the
paging00 logical volume with the rmps command.
C. Reboot the system and disable the paging space with the rmps command.
D. Disable the paging space with the chaps command, swap off /dev/paging00, reboot the
system, remove the paging00 logical volume with the rmps command.
Answer: B
Question 21.
A system administrator needs to upgrade the Oracle database from Version 7 to Version 8.
Which of the following scheduling concerns should be considered?
A. Schedule enough down time to backup, upgrade and reboot.
B. Backup, upgrade, then schedule enough down time to reboot the system.
C. Backup, then schedule enough down time to upgrade and reboot the system.
D. There are no scheduling concerns because no down time is required.
Answer: A
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