101-500 Free Practice Test

- (Exam Topic 3)
Which signal is missing from the following command that is commonly used to instruct a daemon to reinitialize itself, including reading configuration files?
Solution:
killall -s ______ daemon
HUP, SIGHUP, 1

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

- (Exam Topic 4)
Which of the following commands will mount an already inserted CD-ROM in /dev/sr0 onto an existing directory /mnt/cdrom when issued with root privileges?

1. A. mount /dev/cdrom /mnt/cdrom
2. B. mount /dev/sr0 /mnt/cdrom
3. C. mount –t cdrom /dev/sr0 /mnt/cdrom
4. D. mount –l cdrom /dev/sr0 /mnt/cdrom
5. E. mount –f /dev/sr0/mnt/cdrom

Correct Answer: C

- (Exam Topic 2)
Which of the following commands lists all currently installed packages when using RPM package management?

1. A. yum --query --all
2. B. yum --list --installed
3. C. rpm --query --all
4. D. rpm --list –installed

Correct Answer: C

- (Exam Topic 4)
Which of the following commands instructs SysVinit to reload its configuration file?

1. A. reinit
2. B. initreload
3. C. telinit 7
4. D. telinit q
5. E. init reinit

Correct Answer: D

- (Exam Topic 3)
What is the purpose of the Bash built-in export command?

1. A. It allows disks to be mounted remotely.
2. B. It runs a command as a process in a subshell.
3. C. It makes the command history available to subshells.
4. D. It sets up environment variables for applications.
5. E. It shares NFS partitions for use by other systems on the network.

Correct Answer: D