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Symantec 251-251

251-251

Exam Code: 251-251

Exam Name: Administration of HA Solutions for UNIX (VCS 5.0)

Updated: Aug 17, 2026

Q & A: 150 Questions and Answers

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Symantec 251-251 Exam Syllabus Topics:

SectionObjectives
High Availability Concepts- VCS architecture overview
  • 1. Cluster communication mechanisms
    • 2. Engine components (HAD, LLT, GAB)
      - HA architecture principles in UNIX environments
      • 1. Service failover concepts
        • 2. Clustering fundamentals (active-active / active-passive)
          Fault Detection and Failover- Failover behavior and policies
          • 1. Failover triggers and recovery actions
            • 2. Automatic vs manual failover
              - Monitoring and heartbeat mechanisms
              • 1. LLT communication monitoring
                • 2. GAB membership monitoring
                  Troubleshooting and Maintenance- Logging and diagnostics
                  • 1. Cluster log analysis
                    • 2. Debugging tools in VCS
                      - Common VCS issues
                      • 1. Network heartbeat failures
                        • 2. Service group offline troubleshooting
                          Veritas Cluster Server (VCS) Administration- Cluster configuration and setup
                          • 1. Installing VCS on UNIX systems
                            • 2. Initial cluster configuration
                              - Resource and service group management
                              • 1. Resource agents and attributes
                                • 2. Service group types and dependencies

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