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Lpi 304-150 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: High Availability Cluster Management | - High availability in enterprise Linux distributions - Load-balanced clusters (LVS, HAProxy, keepalived) - High availability concepts and theory - Failover clusters (Pacemaker, Corosync) |
| Topic 2: High Availability Cluster Storage | - DRBD / cLVM - Clustered file systems |
| Topic 3: Virtualization Concepts | - Virtualization theory and terminology - KVM virtualization - Cloud management tools - Libvirt and related tools - Xen virtualization - Other virtualization solutions |
Lpi LPI Level 3 Exam 304, Senior Level Linux Certification, Virtualization & High Availability Sample Questions:
Which of the following statements are true of full virtualization? (Select THREE correct answers)
- A. Full virtualization has superior I/O performance through the emulated device drivers.
- B. Full virtualization requires time and system resources for emulation.
- C. Full virtualization requires no modification to the Guest OS kernel.
- D. Full virtualization is faster than paravirtualization.
- E. Full virtualization works through CPU emulation.
Correct Answer: B,C,E 🗳️
You have created a configuration file named /etc/xen/debian.cfg for a virtual machine. The virtual machine starts correctly on the command line, However, the virtual machine is not starting automatically when the server is powered on or rebooted. What can be done to start the virtual machine automatically?
- A. It is necessary to run the command xm autostart debian.cfg.
- B. It is necessary to configure the xend daemon to start automatically when Domain0 starts.
- C. It is necessary to add xendomains_auto = yes to the virtual machine configuration file.
- D. It is not possible to use Xen and its tools to start virtual machines automatically.
- E. It is necessary to add a symbolic link to the configuration file in /etc/xen/auto directory.
Correct Answer: E 🗳️
In order to use HAProxy to balance incoming connections to a pool of email servers, which one of the following modes should be used?
- A. mode email
- B. mode smtp
- C. mode tcp
- D. mode mailproxy
Correct Answer: C 🗳️
Which solution is needed to make several servers in a network appear as one server?
- A. heartbeat
- B. clvm
- C. drbd
- D. pacemaker
- E. lvs
Correct Answer: E 🗳️
Which of the following are NOT true with regard to fencing in an environment where OCFS2 is managed by Pacemaker? (Select THREE false statements)
- A. With the default settings, quorum is needed in the cluster to run OCFS2.
- B. OCFS2 handles its own fencing.
- C. OCFS2 fencing can be adjusted or tuned through editing its configuration file.
- D. OCFS2 uses fencing based on the split brain algorithm.
- E. OCFS2 fencing cannot be controlled with Pacemaker STONITH.
Correct Answer: C,D,E 🗳️
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