You are deploying a new Ceph cluster on servers with spinning disks. You need to choose a storage backend that provides good performance and supports efficient use of disk space. You are considering BlueStore and FileStore. Which factor is most important in your decision?

FileStore is more mature and stable than BlueStore.

FileStore uses less memory than BlueStore.

BlueStore supports compression, which can reduce disk space usage.

BlueStore requires a separate journal device, which adds complexity.

A small Ceph cluster has three MONs and one MGR. During a routine check, you notice that one MON is down and the remaining two MONs are in a quorum. You need to ensure that the cluster can continue to operate if another MON fails. What should you do?

Reduce the MON quorum requirement to two to allow operation with fewer MONs.

Add a fourth MON to maintain a majority quorum.

Configure the MGR to act as a MON to provide additional quorum votes.

Restart the failed MON to restore the original three-node quorum.

LPI LPIC-3 High Availability and Storage Clusters

Domain 3Objective 2

363.2 Ceph Storage Clusters (weight: 8) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 2)

Part of the Topic 363: High Availability Distributed Storage domain, which makes up ~17% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–10 in this domain), expect 3–5 from this objective — we provide 35 practice questions to prepare you well beyond it. (estimate)

35questions here

7free pages

13concepts

Questions 6–10

6foundation · easy
Which OSD backend requires a filesystem (such as XFS) to be created on the OSD data partition?
Select an answer first
7foundation · easy
Which command displays the current status of all Ceph daemons, including MONs, MGRs, and OSDs?
Select an answer first
8foundation · easy
What is the first step when initializing a new Ceph cluster?
Select an answer first
9expert · hard
You are deploying a new Ceph cluster on servers with spinning disks. You need to choose a storage backend that provides good performance and supports efficient use of disk space. You are considering BlueStore and FileStore. Which factor is most important in your decision?
Select an answer first
10application · medium
A small Ceph cluster has three MONs and one MGR. During a routine check, you notice that one MON is down and the remaining two MONs are in a quorum. You need to ensure that the cluster can continue to operate if another MON fails. What should you do?
Select an answer first

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363.2 Ceph Storage Clusters (weight: 8) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 2)

Questions 6–10

Which OSD backend requires a filesystem (such as XFS) to be created on the OSD data partition?

Which command displays the current status of all Ceph daemons, including MONs, MGRs, and OSDs?

What is the first step when initializing a new Ceph cluster?

You are deploying a new Ceph cluster on servers with spinning disks. You need to choose a storage backend that provides good performance and supports efficient use of disk space. You are considering BlueStore and FileStore. Which factor is most important in your decision?

A small Ceph cluster has three MONs and one MGR. During a routine check, you notice that one MON is down and the remaining two MONs are in a quorum. You need to ensure that the cluster can continue to operate if another MON fails. What should you do?

Keep studying — Topic 363: High Availability Distributed Storage