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Lpi LPIC-3 Exam 306: High Availability and Storage Clusters Sample Questions:

1. What is the purpose of restoring and verifying the integrity of a Ceph cluster after an outage?

A) To rebalance the data across OSDs.
B) To synchronize the metadata between MDS instances.
C) To repair data corruption in storage pools.
D) To ensure that all OSDs are functioning properly.

2. How can the state of the backing storage disks of a DRBD device be checked? (Choose TWO correct answers.)

A) cat /proc/drdb/status
B) drbdadm dstate all
C) drbdadm diskstatus all
D) cat /proc/drdb
E) drbdadm state --disk all

3. How can you change the RAID level of an existing device?

A) Using the mdadm command with the --change-level option.
B) By running the lvm command with the --change-level option.
C) By modifying the /proc/sys/dev/raid/ file.
D) By reformatting the RAID device with the desired level.

4. What is GNFS in the context of GlusterFS?

A) An encryption mechanism for securing data in GlusterFS volumes.
B) A command-line utility for managing GlusterFS clusters.
C) A network protocol used for communication between GlusterFS peers.
D) A high-level programming interface for developing GlusterFS applications.

5. What is the purpose of the vgdisplay command?

A) To create a new volume group in LVM.
B) To display information about logical volumes.
C) To display information about volume groups.
D) To display information about physical volumes.

Solutions: