IBM S1000-008 Questions & Answers

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IBM

S1000-008

IBM PowerHA SystemMirror V7.2.5 AIX Administrator Specialty

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Question: 637

A. Application criticality and data volatility

B. Recovery hardware availability

C. Business impact analysis results

D. Frequency of data updates Answer: A, C, D

Explanation: Application criticality, data volatility, and business impact analysis are crucial for establishing RPO. Recovery hardware availability is not a direct factor in determining RPO.

Question: 638

A two-node PowerHA cluster is configured with a shared disk resource group. What happens if the primary node fails, and the secondary node does not have access to the shared disk?

A. The secondary node will automatically take over with no issues

B. The resource group will failover to the secondary node with data loss

C. The secondary node will not be able to take over the resource group

D. The cluster will enter a maintenance mode

When assessing RPO for a critical application in a PowerHA cluster, which factors must be taken into account to establish an effective strategy?

Explanation: If the secondary node does not have access to the shared disk, it will be unable to take over the resource group, resulting in an availability issue.

Question: 639

During a cluster failure, which component of PowerHA is responsible for ensuring that all critical resources are brought online in the correct order?

Resource Group
Start Order
Resource Monitoring

Explanation: Resource Groups and their defined Start Order are crucial for bringing resources online sequentially. Resource Monitoring and Event Scripts support but do not control the startup sequence directly.

Question: 640

If a backup of the PowerHA configuration fails due to insufficient disk space, what is the immediate step to take before attempting the backup again?

A. Change the backup location to a different disk
B. Delete older backups without verification
C. Notify users about potential downtime
D. Increase the size of the logical volume used for backup Answer: D
Explanation: Increasing the size of the logical volume used for backup ensures that there is sufficient space for the backup operation to complete successfully.

Question: 641
Event Scripts Answer: A, B

In a scenario where a critical AIX application is experiencing high response times, which of the following actions would be most effective in optimizing performance by balancing the load across multiple nodes in a PowerHA cluster?

Increase the number of CPU threads allocated to the application on the primary node.
Implement dynamic load balancing to distribute workloads evenly.
Configure affinity settings to bind the application to a specific CPU core.
Monitor and adjust the I/O scheduling to enhance throughput.

Explanation: Dynamic load balancing distributes workloads efficiently across nodes, while adjusting I/O scheduling can enhance throughput and reduce response times.

In the context of IBM PowerHA, what is the function of a tiebreaker disk, and under what condition is it utilized?

A. It allows for faster failover; used when all nodes are operational

B. It prevents split-brain scenarios; utilized when a network partition occurs

C. It enhances network performance; required during heavy traffic

D. It manages resource dependencies; used only during configuration Answer: B

Explanation: A tiebreaker disk is utilized to prevent split-brain scenarios by providing a voting mechanism between nodes when a network partition occurs.

Question: 643

In a situation where you suspect that a specific node's configuration is causing issues within a PowerHA cluster, which command would allow you to compare the current configuration of that node against a known good configuration?

Question: 642

D. clstat -n Answer: A

Explanation: The cldump -n command allows you to compare the current configuration of a specific node against a known good configuration, helping to identify discrepancies that could be causing issues.

Question: 644

In a scenario where a cluster experiences frequent node state changes, what should be your first course of action regarding the cluster logs?

Question: 646

In an AIX deployment, what is the impact of implementing end-to-end encryption for sensitive data communication?

Enhanced protection against interception
Increased complexity in key management
Reduced compliance with security standards
Improved trust between communicating parties Answer: A, B, D

Question: 647

In a scenario where multiple nodes are configured to manage a single resource group, which command would you use to retrieve detailed information about the resources allocated to that group?

D. cllsvg Answer: B

Explanation: The clRGinfo command is specifically designed to provide detailed information about resource groups and their associated resources, including allocation and status.

Question: 648

During a troubleshooting session, you need to analyze the logs generated by PowerHA

Explanation: End-to-end encryption significantly enhances protection against interception, increases key management complexity, and fosters trust between parties due to its security assurances.

for a specific resource group that failed to start. Which log file should you examine to find detailed information about the resource group's startup process?

/opt/hacmp/log/cluster.log
/var/log/messages
/var/hacmp/log/hacmp.out
/var/hacmp/log/hacmp.err

Explanation: The /var/hacmp/log/hacmp.out file contains detailed logs about the operations performed by PowerHA, including resource group startup processes, which is essential for troubleshooting.

In a scenario where a resource group fails over to a secondary node due to a node failure, what is the maximum time allowed for resource recovery before the system attempts to failover again?

D. 600 seconds Answer: B, C

Explanation: The maximum time allowed for resource recovery before a failover is typically configurable, with common values being 120 to 300 seconds, depending on the system's settings.

Question: 650

When reviewing cluster logs, which of the following entries would indicate a successful communication between nodes?

A. Node A has failed to send a heartbeat

B. Node D is in a "Not Responding" state

C. Node C is attempting to reconnect

D. Node B received a state change notification from Node A Answer: D

Explanation: An entry indicating that Node B received a state change notification from Node A signifies successful communication between the nodes.

Question: 651

When implementing event scripts, which of the following best practices should be followed to ensure reliability and maintainability?

Use clear naming conventions
Document all changes and scripts
D. Avoid using external dependencies Answer: A, B, C, D
Explanation: All best practices contribute to the reliability and maintainability of event scripts by ensuring clarity, documentation, simplicity, and independence from external dependencies.

Question: 652

Which log file should you consult if you want to identify any potential network related issues affecting cluster communication?

A. /opt/hacmp/log/event.log
B. /var/hacmp/log/network.log
C. /var/hacmp/log/hacmp.out
D. /var/hacmp/log/hacmp.err Answer: A
Explanation: The event.log file captures significant network events affecting cluster communication, making it essential for diagnosing network-related issues.
Limit script complexity

Question: 653

In a scenario where a secondary site is activated due to a primary site failure, what considerations should be made to effectively manage RTO?

The readiness of backup hardware
The availability of skilled personnel for recovery tasks
The synchronization state of data before the failure
The documentation of recovery procedures Answer: A, B, C, D

Question: 654

Which command is used to check the status of the cluster daemon processes?

A. clmgr -daemonStatus

B. hacmp -checkDaemon

C. clRGinfo -daemonStatus

D. cltopinfo -daemon Answer: D

Explanation: The cltopinfo -daemon command checks the status of the cluster daemon processes, providing insights into their operational state.

Question: 655

When configuring a resource group in PowerHA, which parameter is critical to ensure that applications are started in the correct order?

A. Resource Monitoring Interval

B. Resource Group Name

Explanation: All considerations are vital for managing RTO effectively. Hardware readiness, skilled personnel, data synchronization state, and recovery documentation significantly influence restoration times.

Failover Timeout
Startup Dependencies Answer: D

Explanation: Startup Dependencies are critical for ensuring that resources are started in the correct order, which is essential for maintaining application availability.

Question: 656

In a PowerHA cluster configured with multiple resource groups, which of the following statements accurately describes the failover process when the primary node becomes unavailable?

defined policies.

B. Manual intervention is always required to initiate the failover.

C. Failover occurs only if the node has a lower priority than the one it is failing over to.

D. Resource groups can failover to any node that meets the resource availability criteria. Answer: A, D

Explanation: In a PowerHA cluster, resource groups are designed to automatically failover to the next available node based on predefined policies, while manual intervention is not always necessary unless specified.

Question: 657

What command is used to generate a detailed report of the cluster's operational status?

A. cltopinfo -status

B. hacmp -statusReport

C. clmgr -generateReport

D. clRGinfo -report Answer: C

Explanation: The clmgr -generateReport command generates a detailed report of the cluster's operational status, useful for audits and troubleshooting.

A. The resource group will automatically failover to the next available node based on

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