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NEW QUESTION # 18
Which utility can be used to manage network bonding in Linux?
- A. bonding.ko
- B. nmcli
- C. ip
- D. ifenslave
Answer: D
NEW QUESTION # 19
What is the term used to describe the time interval between failures of a system component?
- A. Mean Time To Repair (MTTR)
- B. Service Level Agreement (SLA)
- C. State Handling
- D. Mean Time Before Failure (MTBF)
Answer: D
NEW QUESTION # 20
What is the purpose of integrating DRBD with Pacemaker?
- A. To configure networking connections and meshes for DRBD
- B. To monitor the health and status of DRBD devices
- C. To provide high availability and automatic failover capabilities
- D. To manage replication modes in DRBD
Answer: C
NEW QUESTION # 21
Which of the following commands can be used to safely test and preview Pacemaker configuration changes? (Choose TWO correct answers.)
- A. crm_shadow
- B. crm_lab
- C. crm_simulate
- D. crm_dryrun
- E. crm_test
Answer: A,C
NEW QUESTION # 22
What is network bonding?
- A. Combining multiple network interfaces into a single logical interface.
- B. Enabling redundant networking connections for high availability.
- C. Establishing a secure connection between two networks.
- D. Configuring VLANs on network interfaces for traffic separation.
Answer: A
NEW QUESTION # 23
What is the purpose of RSTP (Rapid Spanning Tree Protocol) in switch configuration for high availability?
- A. To provide load balancing across multiple network interfaces.
- B. RSTP is not related to switch configuration.
- C. To manage VLANs and network segmentation.
- D. To ensure redundancy and quick recovery in case of network failures.
Answer: D
NEW QUESTION # 24
Which of the following best describes the goal of High Availability (HA) and Site Reliability Engineering (SRE)?
- A. Increasing complexity in cluster architectures
- B. Reducing redundancy in cluster designs
- C. Maximizing downtime for critical systems
- D. Minimizing downtime for critical systems
Answer: D
NEW QUESTION # 25
What is the purpose of configuring multipath.conf in Linux?
- A. To manage distributed lock management in a cluster
- B. To configure iSCSI targets and initiators
- C. To manage LVM volumes on clustered storage
- D. To configure multipathing for high availability in SAN environments
Answer: D
NEW QUESTION # 26
Which load balancing algorithm selects backend servers based on the source IP address of incoming requests?
- A. Direct Routing
- B. NAT (Network Address Translation)
- C. Source IP Hash
- D. Tunneling
Answer: C
NEW QUESTION # 27
What is the purpose of monitoring S.M.A.R.T values using smartmontools?
- A. To monitor the system's memory usage.
- B. To monitor network bandwidth usage.
- C. To monitor the system's CPU usage.
- D. To monitor the health of storage devices.
Answer: D
NEW QUESTION # 28
How can you configure high availability aspects of Ceph?
- A. By enabling redundancy and failover mechanisms for OSDs.
- B. By configuring replication and erasure coding for storage pools.
- C. By configuring MDS instances with mirroring and synchronization.
- D. By adjusting the CRUSH map to include multiple MON nodes.
Answer: D
NEW QUESTION # 29
Which of the following statements are true regarding a load balancer? (Choose TWO correct answers.)
- A. Load balancers may be able to analyze traffic.
- B. All response packages sent from a backend server to a client must pass through the load balancer.
- C. Failover clusters are not operational without at least one dedicated load balancer.
- D. The load balancer is usually deployed on one of the backend servers.
- E. All incoming connections to the cluster services are received by the load balancer.
Answer: A,E
NEW QUESTION # 30
Which of the following commands can be used to change properties such as the number of node slots or the label of an existing OCFS2 filesystem?
- A. ocfs2.setprops
- B. o2cbtool
- C. ocfs2tool
- D. crm_edit
- E. tunefs.ocfs2
Answer: E
NEW QUESTION # 31
Which of the following situations can result in a split brain situation in a high availability cluster?
- A. A cluster node has successfully been fenced.
- B. Cluster services are moved between cluster nodes.
- C. The load balancer of a load balanced cluster fails.
- D. The communication between the cluster nodes is interrupted.
- E. More than one node is active in a load balanced cluster.
Answer: D
NEW QUESTION # 32
Which bond mode in network bonding provides fault tolerance by using one active interface and one standby interface?
- A. Balance-ALB
- B. Balance-TLB
- C. 802.3ad
- D. Active-Backup
Answer: D
NEW QUESTION # 33
What does a Service Level Agreement (SLA) typically define in the context of high availability?
- A. The type of load balancing algorithm used
- B. The maximum number of nodes in a cluster
- C. The number of resources shared between nodes
- D. The duration of downtime allowed for a system
Answer: D
NEW QUESTION # 34
How can you recover a RAID device after a failure?
- A. By reformatting the RAID device and rebuilding the array from scratch.
- B. By replacing the failed disk and running the mdadm --rebuild command.
- C. By running the fsck utility on the array to fix any disk errors.
- D. By modifying the /proc/sys/dev/raid/ file to restore the array.
Answer: B
NEW QUESTION # 35
What is the purpose of a resource rule in Pacemaker?
- A. Configuring resource templates
- B. Managing node health
- C. Controlling resource location
- D. Setting resource order
Answer: C
NEW QUESTION # 36
Which one of the following options represents a valid declaration of a backend server with HAProxy?
- A. backend server_x 10.1.0.1:80
- B. pool server_x 10.1.0.1:80
- C. server server_x 10.1.0.1:80 check
- D. host server_x 10.1.0.1:80 cookie server_x
Answer: C
NEW QUESTION # 37
Which of the following commands displays only the resources of the cluster information base of a pacemaker cluster?
- A. cib_admin -L resources
- B. cibquery -L resources
- C. cibadmin -Q -o resources
- D. cibadmin -R
- E. cibquery -o resources
Answer: C
NEW QUESTION # 38
Which configuration file is used to manage and configure Corosync in conjunction with Pacemaker?
- A. sbd
- B. corosync.conf
- C. stonith_admin
- D. authkey
Answer: B
NEW QUESTION # 39
When using DRBD in a Pacemaker cluster, which configuration objects must be managed in order to use the DRBD device as storage for other cluster services? (Choose TWO correct answers.)
- A. A file system resource to mount the device.
- B. A constraint to ensure the device is mounted before the dependent services are started.
- C. A replication resource that synchronizes the DRBD device's data to all nodes that may take over the device after a failover.
- D. A health resource in order to check the integrity of the file system.
- E. A security resource in order to permit other cluster services to access the data on the DRBD device.
Answer: A,B
NEW QUESTION # 40
Which utility is used to resize a GFS2 file system?
- A. fsck.gfs2
- B. mount.gfs2
- C. gfs2_grow
- D. mkfs.gfs2
Answer: C
NEW QUESTION # 41
What is the purpose of the vgdisplay command?
- A. To create a new volume group in LVM.
- B. To display information about physical volumes.
- C. To display information about volume groups.
- D. To display information about logical volumes.
Answer: C
NEW QUESTION # 42
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