Question: 1 
During troubleshooting of an IBM PowerHA SystemMirror cluster, which log file should be checked to identify network communication issues between cluster nodes? 
A. /var/hacmp/logs/cluster.log 
B. /var/hacmp/logs/errlog 
C. /var/hacmp/logs/cluster_nif.log 
D. /var/hacmp/logs/cluster_topo.log 
Answer: C 
Explanation: The /var/hacmp/logs/cluster_nif.log file should be checked during troubleshooting of an IBM PowerHA SystemMirror cluster to identify network communication issues between cluster nodes. This log contains information about network interfaces and their status. 

Question: 2 
Which command is used to verify the integrity of the cluster configuration in an IBM PowerHA SystemMirror environment? 
A. clverify 
B. clchkconfig 
C. clconfcheck 
D. clstatus 
Answer: A 
Explanation: The clverify command is used to verify the integrity of the cluster configuration in an IBM PowerHA SystemMirror environment. It checks the cluster configuration files, network connectivity, and resource dependencies to ensure that the cluster is correctly configured. 

Question: 3 
Which command is used to manage resource groups in an IBM PowerHA SystemMirror cluster? 
A. cl_resource 
B. cl_ctrl 
C. clRGinfo 
D. clRGadm 
Answer: D 
Explanation: The clRGadm command is used to manage resource groups in an IBM PowerHA SystemMirror cluster. It allows administrators to create, modify, and delete resource groups, as well as start and stop resources within a group. 

Question: 4 
Which customization option allows an administrator to specify the priority of resource groups in an IBM PowerHA SystemMirror cluster? 
A. clRGpriority 
B. clRGcustom 
C. clRGorder 
D. clRGweight 
Answer: D 
Explanation: The clRGweight option allows an administrator to specify the priority of resource groups in an IBM PowerHA SystemMirror cluster. Higher weight values indicate higher priority, and resource groups with higher priority are started before those with lower priority during cluster startup. 

Question: 5 
During the configuration and deployment of an IBM PowerHA SystemMirror cluster, which option is used to specify the timeout value for heartbeats between nodes? 
A. ha_conftimeout 
B. ha_heartbeat_timeout 
C. ha_network_timeout 
D. ha_timeout_interval 
Answer: B 
Explanation: The ha_heartbeat_timeout option is used to specify the timeout value for heartbeats between nodes in an IBM PowerHA SystemMirror cluster. It determines how long a node waits before considering a heartbeat from another node as missed. 

Question: 6 
Which command is used to display the current cluster topology in an IBM PowerHA SystemMirror environment? 
A. cltopinfo 
B. clstat 
C. clshow 
D. cltopview 
Answer: B 

Explanation: The clstat command is used to display the current cluster topology in an IBM PowerHA SystemMirror environment. It provides information about the nodes in the cluster, their status, and the resources assigned to each node. 

Question: 7 
When upgrading an IBM PowerHA SystemMirror cluster, which action is recommended to minimize downtime? 
A. Perform a rolling upgrade, one node at a time 
B. Simultaneously upgrade all nodes in the cluster 
C. Stop the cluster services on all nodes during the upgrade 
D. Rebuild the cluster from scratch after upgrading each node 
Answer: A 
Explanation: Performing a rolling upgrade, one node at a time, is recommended to minimize downtime during the upgrade of an IBM PowerHA SystemMirror cluster. This approach allows the cluster to remain operational while individual nodes are upgraded. 

Question: 8 
Which of the following is a key consideration during the planning phase of an IBM PowerHA SystemMirror deployment? 
A. Determining the required network bandwidth 
B. Selecting the primary node for the cluster 
C. Configuring the virtual IP address 
D. Installing the PowerHA SystemMirror software 
Answer: A Explanation: Determining the required network bandwidth is crucial during the planning phase to ensure that the cluster can handle the expected workload and data replication efficiently. 

Question: 9 
Which configuration file is used to specify the behavior of the PowerHA SystemMirror Cluster Services at startup? 
A. /etc/inittab 
B. /etc/hacmp.conf 
C. /etc/ha.conf 
D. /etc/cluster.conf 
Answer: B 
Explanation: The /etc/hacmp.conf file is used to specify the behavior of the PowerHA SystemMirror Cluster Services at startup. It contains configuration parameters that control various aspects of the cluster, such as network settings, resource groups, and communication protocols.