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Lpi 306-300 Exam Syllabus Topics:

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

1. What is the purpose of placement groups (PGs) in a Ceph cluster?

A) To monitor the health and availability of MON nodes.
B) To manage access control for different storage pools.
C) To synchronize data between MDS instances in a CephFS.
D) To distribute data across OSDs for redundancy and performance.

2. How can you recover a RAID device after a failure?

A) By running the fsck utility on the array to fix any disk errors.
B) By replacing the failed disk and running the mdadm --rebuild command.
C) By modifying the /proc/sys/dev/raid/ file to restore the array.
D) By reformatting the RAID device and rebuilding the array from scratch.

3. In a Pacemaker cluster, which one of the following commands shows the right syntax for fencing the node on port 3 using the APC rack PDU device which can be found at IP address 192.168.1.145?

A) fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot
B) apc_stonith -a 192.168.1.145 -l apc -p apc -n 3 -v -o reboot
C) apc_stonith -a 192.168.1.145 -l apc -n 3 -v -o shutdown -r now
D) fence_apc -a 192.168.1.145 -l apc -p apc -n 3 -v -o shutdown -r now

4. What is the purpose of CephFS volumes in a Ceph cluster?

A) To synchronize metadata between MDS instances.
B) To store block-level data for virtual machines.
C) To provide object storage for web applications.
D) To manage distributed file systems across multiple nodes.

5. Which cluster stack is associated with OCFS2?

A) GFS2
B) DLM
C) Lustre
D) O2CB

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