What is the purpose of a scrub in Ceph?

To remove deleted data from OSDs

To check for data corruption and inconsistencies

What is the recommended order for upgrading Ceph daemons?

OSDs, then Monitors, then Managers, then MDS

Monitors, then Managers, then OSDs, then MDS

MDS, then OSDs, then Monitors, then Managers

Which command creates a snapshot of an RBD image named 'disk1' with the snapshot name 'snap1'?

ceph rbd snap create disk1 snap1

Which command creates a new RBD image named 'disk1' with a size of 10GB?

ceph rbd create disk1 --size 10G

rbd create --pool rbd disk1 10G

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 6)

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 26–30

26foundation · easy
What is the purpose of a scrub in Ceph?
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27foundation · easy
What is the recommended order for upgrading Ceph daemons?
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28foundation · easy
Which command creates a snapshot of an RBD image named 'disk1' with the snapshot name 'snap1'?
Select an answer first
29foundation · easy
Which command creates a new RBD image named 'disk1' with a size of 10GB?
Select an answer first
30foundation · easy
Which Ceph OSD backend uses a key-value database (RocksDB) for metadata and stores data directly on the raw block device?
Select an answer first

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