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Lpi LPIC-3 Exam 306: High Availability and Storage Clusters Sample Questions:

1. Which of the following statements are true regarding the determination of the capacity of a high availability cluster? (Choose TWO correct answers.)

A) The overall capacity of all components in the cluster doesn't have to be larger than the resources needed in a regular setup.
B) Failover clusters can be used to scale a single service beyond the capacity of a single cluster node.
C) The number of nodes in a cluster has no effect on the availability as long as the sum of the available computing resources is equal.
D) In case of the failure of any component, enough resources must remain to provide all cluster services.
E) In regular cluster operation, not all resources are used.

2. What is the purpose of the sysfs file /sys/class/net/bond*/bonding/miimon in network bonding?

A) It manages the master-slave relationship between network interfaces.
B) The file /sys/class/net/bond*/bonding/miimon does not exist.
C) It configures the monitor interval for link status checking.
D) It displays the status of network interfaces in bonding mode.

3. What is true for a virtual IP address in the context of keepalived? (Choose TWO correct answers.)

A) The distinct IP addresses of all backend servers are called virtual IP addresses.
B) Within the whole LVS cluster managed by keepalived, the virtual IP address never appears on any network interface.
C) The virtual IP address is the address to which incoming connections are made in order to reach the load balancer.
D) Every server running keepalived has exactly one virtual IP address and cannot have any additional virtual IP addresses.
E) keepalived uses VRRP to ensure the availability of the virtual IP address.

4. Which command is used to manage and configure GlusterFS clusters?

A) glusterfs-manager
B) glusterfs-admin
C) glusterfs-config
D) glusterfs-control

5. What is the purpose of the drbdmon utility?

A) To verify the integrity of a DRBD device
B) To configure automatic recovery and error handling
C) To monitor the status of DRBD devices
D) To manage DRBD networking connections

Solutions: