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NEW QUESTION # 36
Which of the following configuration settings specify that keepalived is to use the round robin algorithm?
- A. lb_mode rr
- B. lb_algo rr
- C. loadbalancer_mode=rr
- D. lb_algorithm=rr
- E. algorithm=round robin
Answer: B
NEW QUESTION # 37
What is the purpose of a hot spare disk in a RAID array?
- A. It serves as a backup for the RAID configuration.
- B. It improves the performance of the RAID array.
- C. It acts as an additional storage device for the array.
- D. It automatically replaces a failed disk in the array.
Answer: D
NEW QUESTION # 38
What is the role of smartd in monitoring hardware failures?
- A. It monitors the system's memory usage.
- B. It monitors the S.M.A.R.T values of storage devices.
- C. It triggers disk checks at regular intervals.
- D. It monitors the system's CPU usage.
Answer: B
NEW QUESTION # 39
Which of the following describes a split brain situation in a high availability cluster?
- A. In addition to shared storage, each node has local storage that is not shared with other nodes.
- B. Incoming network connections are accidentally forwarded to more than one backend server.
- C. Instead of shared storage, each node uses local storage managed by itself and replicates with other nodes.
- D. Several cluster nodes run different instances of the same services.
- E. Several cluster nodes access a shared resource without coordination.
Answer: E
NEW QUESTION # 40
How does high availability clustering relate to periodic storage backup? (Choose TWO correct answers.)
- A. Regular backups remain vital as they allow restoration of data that was accidentally deleted or corrupted.
- B. Backup procedures may have to be adapted to the cluster to ensure complete and recoverable backups.
- C. Backups should be located only on the local storage of the cluster and should not be backed up in order to prevent bandwidth congestion.
- D. Regular backups may be reduced to the cluster configuration and cluster state data as this information is sufficient to recover any state of the cluster, including data, at any time.
- E. Regular backups become generally unnecessary as any data loss or corruption is automatically recovered by the high availability cluster.
Answer: A,B
NEW QUESTION # 41
What is network bonding?
- A. Establishing a secure connection between two networks.
- B. Enabling redundant networking connections for high availability.
- C. Combining multiple network interfaces into a single logical interface.
- D. Configuring VLANs on network interfaces for traffic separation.
Answer: C
NEW QUESTION # 42
Which of the following best describes the architecture of DRBD (Distributed Replicated Block Device)?
- A. A distributed file system
- B. A block-level replication system
- C. A network storage protocol
- D. A file-based replication system
Answer: B
NEW QUESTION # 43
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 security resource in order to permit other cluster services to access the data on the DRBD device.
- B. A constraint to ensure the device is mounted before the dependent services are started.
- C. A file system resource to mount the device.
- D. A replication resource that synchronizes the DRBD device's data to all nodes that may take over the device after a failover.
- E. A health resource in order to check the integrity of the file system.
Answer: B,C
NEW QUESTION # 44
Which load balancing algorithm considers the load and capacity of backend servers to distribute traffic efficiently?
- A. Tunneling
- B. Dynamic Round Robin
- C. Direct Routing
- D. NAT (Network Address Translation)
Answer: B
NEW QUESTION # 45
Which tool is used to configure and manage CephFS volumes?
- A. cephfs-admin
- B. cephfs-manager
- C. cephfs-deploy
- D. cephfs-control
Answer: D
NEW QUESTION # 46
Which utility is used to manage the low-level configuration and settings of DRBD devices?
- A. drbdadm
- B. drbdmon
- C. drbdsetup
- D. drbdmeta
Answer: C
NEW QUESTION # 47
Which of the following commands can be used to safely test and preview Pacemaker configuration changes? (Choose TWO correct answers.)
- A. crm_lab
- B. crm_shadow
- C. crm_simulate
- D. crm_dryrun
- E. crm_test
Answer: B,C
NEW QUESTION # 48
Which of the following are valid load balancing algorithms for HAProxy? (Choose TWO correct answers.)
- A. source
- B. persistent
- C. destination
- D. weightedrr
- E. leastconn
Answer: A,E
NEW QUESTION # 49
Which O2CB mode should be used for OCFS2 integration with heartbeat?
- A. heartbeat
- B. dlm
- C. user
- D. kernel
Answer: C
NEW QUESTION # 50
HAProxy is commonly used as a load balancer in Load Balanced Clusters.
What is the primary function of HAProxy?
- A. IP address failover
- B. Backend server networking
- C. Load balancing and proxying
- D. Connection scheduling algorithms
Answer: C
NEW QUESTION # 51
Which clustered file system is commonly used for high-performance computing and large-scale data storage?
- A. OCFS2 (Oracle Clustered File System 2)
- B. Lustre
- C. GFS2 (Global File System 2)
- D. AFS (Andrew File System)
Answer: B
NEW QUESTION # 52
True or False: shrink function is not supported in a GFS2 filesystem.
- A. False
- B. True
Answer: B
NEW QUESTION # 53
What is the purpose of the sysfs file /sys/class/net/bond*/bonding/miimon in network bonding?
- A. The file /sys/class/net/bond*/bonding/miimon does not exist.
- B. It displays the status of network interfaces in bonding mode.
- C. It manages the master-slave relationship between network interfaces.
- D. It configures the monitor interval for link status checking.
Answer: D
NEW QUESTION # 54
What is the purpose of initializing a Ceph cluster?
- A. To generate cryptographic keys for secure communication.
- B. To assign storage devices to OSDs.
- C. To create the initial CRUSH map.
- D. To configure high availability settings.
Answer: A
NEW QUESTION # 55
Which command-line utility is used to obtain information about the status of the Pacemaker cluster?
- A. crm_mon
- B. crm_verify
- C. crm
- D. pcs
Answer: A
NEW QUESTION # 56
Which load balancing algorithm selects backend servers based on the source IP address of incoming requests?
- A. Tunneling
- B. Source IP Hash
- C. Direct Routing
- D. NAT (Network Address Translation)
Answer: B
NEW QUESTION # 57
How can you replace a failed brick in a GlusterFS cluster?
- A. By detaching the failed brick and attaching a new one.
- B. By creating a new volume and migrating data from the failed brick.
- C. By adding a new peer to the cluster.
- D. By reconfiguring the trusted storage pools.
Answer: A
NEW QUESTION # 58
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