Free 201-450 Exam Braindumps

Which of the following commands erases the contents of the /dev/sdb3 partition?

1. A. rm /dev/sdb3
2. B. dd if=/dev/zero of=/dev/sdb3
3. C. dd of=/dev/zero if=/dev/sdb3
4. D. umount /dev/sdb3

Correct Answer: B

Which of the following are common backup systems used in Linux? (Choose TWO correct answers.)

1. A. Amanda
2. B. Bacula
3. C. DrBackup
4. D. BREWBackup
5. E. SARcheck

Correct Answer: AB

A correctly formatted entry has been added to /etc/hosts.deny to prevent certain clients from connecting to a service but this is having no effect. What could be the cause of this? (Choose TWO correct answers.)

1. A. tcpd needs to be sent the HUP signal.
2. B. The service needs to be restarted.
3. C. The machine needs to be restarted.
4. D. There is a conflicting entry in /etc/hosts.allow.
5. E. The service does not support tcpwrapper.

Correct Answer: DE

What is the purpose of a system mount unit?

1. A. It is used by the command systemd-mount and allows users to mount partitions to mount points of their choice
2. B. It is used only to mount network file systems to local mount point
3. C. It cannot be used for local media
4. D. It is created by the command systemd-fstab-generator to integrate entries from /etc/fstab into the system boot process
5. E. It is used by the command mount when using system to mount and unmount file systems

Correct Answer: A

Which of the following are common Linux filesystem types used for root partitions? (Choose THREE correct answers.)

1. A. ext4
2. B. VFAT
3. C. NTFS
4. D. XFS
5. E. Btrfs

Correct Answer: ADE