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Lpi LPIC Level3 304-150

304-150

Exam Code: 304-150

Exam Name: LPI Level 3 Exam 304, Senior Level Linux Certification, Virtualization & High Availability

Updated Time: Nov 02, 2026

Q & A: 105 Questions and Answers

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Lpi 304-150 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: High Availability Cluster Storage20%- Shared Storage
  • 1. Multipath I/O
    • 2. iSCSI and Fibre Channel
      - Clustered Filesystems
      • 1. Ceph basics
        • 2. OCFS2
          • 3. GFS2
            - Replicated Storage
            • 1. cLVM clustered LVM
              • 2. DRBD configuration and operation
                Topic 2: High Availability Cluster Management35%- Cluster Software
                • 1. Pacemaker resource manager
                  • 2. Corosync membership layer
                    • 3. pcs / crmsh configuration tools
                      • 4. Keepalived and VRRP
                        - Resource Configuration
                        • 1. Resource constraints and ordering
                          • 2. Cluster monitoring and troubleshooting
                            • 3. IP, service, and filesystem resources
                              - HA Concepts
                              • 1. Failover and load balancing
                                • 2. Active/Passive and Active/Active clusters
                                  • 3. Quorum and fencing / STONITH
                                    • 4. Split-brain prevention
                                      Topic 3: Virtualization45%- Other Virtualization Solutions
                                      • 1. OpenNebula
                                        • 2. LXC / LXD
                                          • 3. VirtualBox
                                            • 4. oVirt
                                              - KVM
                                              • 1. KVM installation and configuration
                                                • 2. QEMU and libvirt tools
                                                  • 3. VM lifecycle management
                                                    - Xen
                                                    • 1. Xen host and guest management
                                                      • 2. Xen networking and storage
                                                        • 3. Xen installation and configuration
                                                          - Virtualization Concepts
                                                          • 1. Paravirtualization
                                                            • 2. Full virtualization
                                                              • 3. Container-based virtualization
                                                                • 4. Virtualization architectures

                                                                  Lpi LPI Level 3 Exam 304, Senior Level Linux Certification, Virtualization & High Availability Sample Questions:

                                                                  Question #1
                                                                  What is the purpose of the Cluster Configuration System (CCS)?

                                                                  A. It manages the network topology and settings for the cluster.
                                                                  B. It fences a dropped node.
                                                                  C. It manages ACLs for cluster service access.
                                                                  D. It manages the cluster configuration information file.


                                                                  Question #2
                                                                  Which of the following authentication types does keepalived support for syncing between failover servers? (Select TWO correct answers)

                                                                  A. KRB5
                                                                  B. NONE
                                                                  C. PASS
                                                                  D. AH
                                                                  E. KEY


                                                                  Question #3
                                                                  Which memory management subsystem does KVM use?

                                                                  A. QEMM
                                                                  B. KVMMM
                                                                  C. The default memory management of the Host OS kernel
                                                                  D. Xen's memory management module


                                                                  Question #4
                                                                  What change must be made to the Guest OS kernel to support paravirtualization?

                                                                  A. The Guest OS kernel must rewrite modules to communicate with the hypervisor.
                                                                  B. None; the unmodified Guest OS kernel communicates with the CPU through an emulated CPU which is provided by the hypervisor.
                                                                  C. The Guest OS kernel must replace privileged CPU instructions with calls to the hypervisor.
                                                                  D. None; the unmodified Guest OS kernel can communicate directly with the hardware CPU.


                                                                  Question #5
                                                                  With IPVS, if this sysctl variable is set to 0, the load balancer will silently drop packets when its destination server is not available. If this variable is enabled, the load balancer will expire the connection immediately when a packet arrives and its destination server is not available.

                                                                  A. drop_entry
                                                                  B. drop_curr_conn
                                                                  C. expire_curr_conn
                                                                  D. expire_nodest_conn


                                                                  Solutions:

                                                                  Question #1
                                                                  Correct Answer: D
                                                                  Question #2
                                                                  Correct Answer: C,D
                                                                  Question #3
                                                                  Correct Answer: C
                                                                  Question #4
                                                                  Correct Answer: C
                                                                  Question #5
                                                                  Correct Answer: D

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