201-450 Free Practice Test

Which of the following wireless tools can be used to check the wireless network link quality? (Choose TWO correct answers.)

1. A. iwconfig
2. B. iwlink
3. C. iwscan
4. D. iwifi
5. E. iw

Correct Answer: AE

In which directory tree are files modified when changing kernel parameters using the command sysctl?

1. A. /sys/kernel/
2. B. /proc/kernel/
3. C. /proc/sys/
4. D. /lib/sys/
5. E. /sys/proc/

Correct Answer: C

In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

1. A. sa1
2. B. sarmon
3. C. sarec
4. D. sadf
5. E. sarcron

Correct Answer: A

Which of the following terms are used to describe 3.x kernel releases? (Choose TWO correct answers.)

1. A. beta
2. B. final
3. C. longterm
4. D. prerelease
5. E. stable

Correct Answer: CE

Which directory in /dev/disk/ can be used to determine the UUID of a connected hard disk?
Solution:
/dev/disk/by-uuid, by-uuid, /dev/disk/by-uuid/

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A