363.2 Ceph Storage Clusters (weight: 8) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   Which command creates a new CephFS volume named 'cephfs'?

   • Aceph mds create cephfs
   • Bceph fs create cephfs
   • Cceph cephfs create cephfs
   • Dceph fs new cephfs
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   Which command adds a new monitor to a running Ceph cluster?

   • Aceph mon create <name> <ip>
   • Bceph mon add <name> <ip>
   • Cceph mon start <name> <ip>
   • Dceph add mon <name> <ip>
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   You are initializing a new Ceph cluster with three initial MONs. You have already installed the Ceph packages and configured the network. What is the next step to create the cluster?

   • ARun `ceph auth get-or-create client.admin` to create the admin keyring.
   • BRun `ceph fs new` to create the Ceph file system.
   • CRun `ceph-deploy mon create-initial` on the first MON node.
   • DRun `ceph osd create` on each OSD node.
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   What are Ceph tunables?

   • AAuthentication keys for clients
   • BNetwork settings for OSD communication
   • CConfiguration parameters that control CRUSH behavior and compatibility
   • DMonitoring thresholds for cluster health
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   You are initializing a new Ceph cluster with three MONs. You have already installed the packages and configured the network. You run `ceph-deploy mon create-initial` on the first node, but the command fails with an error. What is the most likely cause?

   • AThe Ceph configuration file is missing the [global] section.
   • BThe OSDs have not been initialized yet.
   • CThe MGR daemon is not running.
   • DThe SSH keys are not configured for passwordless access to the other MON nodes.
   Reveal Solution Discussion Select an answer first