What is the primary role of the Distributed Lock Manager (DLM) in a cluster file system like GFS2?

To monitor the health of cluster nodes and initiate failover.

To provide a network file sharing protocol for clients.

To coordinate access to shared storage by managing locks on file system objects.

To manage the physical layout of data on the storage device.

An OCFS2 file system is mounted on a 4-node cluster. The administrator needs to change the mount options, such as enabling 'noatime'. What is the correct way to apply this change?

Run tunefs.ocfs2 to change mount options.

Edit /etc/fstab and remount the file system on all nodes.

Use mount -o remount,noatime on one node only.

Recreate the file system with the new options.

What is the primary purpose of cache coherence in a cluster file system?

To provide a single namespace for all files in the cluster.

To encrypt data at rest on the shared storage.

To ensure that all nodes see a consistent view of file data despite local caching.

To balance the I/O load evenly across all storage devices.

LPI LPIC-3 High Availability and Storage Clusters

Domain 2Objective 3

362.3 Clustered File Systems (weight: 4) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 5)

Part of the Topic 362: High Availability Cluster Storage domain, which makes up ~26% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–16 in this domain), expect 3–5 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

6concepts

Questions 21–24

21foundation · easy
What is the primary role of the Distributed Lock Manager (DLM) in a cluster file system like GFS2?
Select an answer first
22application · medium
An OCFS2 file system is mounted on a 4-node cluster. The administrator needs to change the mount options, such as enabling 'noatime'. What is the correct way to apply this change?
Select an answer first
23foundation · easy
What is the primary purpose of cache coherence in a cluster file system?
Select an answer first
24foundation · easy
Which command is used to create an OCFS2 file system on a shared device?
Select an answer first

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362.3 Clustered File Systems (weight: 4) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 5)

Questions 21–24

What is the primary role of the Distributed Lock Manager (DLM) in a cluster file system like GFS2?

An OCFS2 file system is mounted on a 4-node cluster. The administrator needs to change the mount options, such as enabling 'noatime'. What is the correct way to apply this change?

What is the primary purpose of cache coherence in a cluster file system?

Which command is used to create an OCFS2 file system on a shared device?

Keep studying — Topic 362: High Availability Cluster Storage