CompTIA Server+ (SK0-005) — Lesson 3: Security, High Availability, Backup, and Disaster Recovery

Learning Objectives

• Explain the roles, prerequisites, dependencies, and decision points shaping security, high availability, backup, and disaster recovery.
• Complete the workflow and produce server protection and recovery test report that another practitioner can review.
• Resolve “backup jobs succeed while restore permissions prevent recovery” through a controlled and evidence-led troubleshooting process.

Detailed Topics

• hardening
• identity and privileged access
• certificates
• clustering
• load balancing
• backup types
• replication
• recovery objectives
• Security, performance, resilience, rollback, documentation, and support considerations for security, high availability, backup, and disaster recovery

Instructor Demonstration

The instructor demonstrates the complete security, high availability, backup, and disaster recovery workflow, records each material checkpoint in server protection and recovery test report, and contrasts the accepted state with a controlled condition where backup jobs succeed while restore permissions prevent recovery.

Hands-On Exercise

Implement or analyze Security, High Availability, Backup, and Disaster Recovery in a controlled environment. Establish a baseline, reproduce or examine “backup jobs succeed while restore permissions prevent recovery,” isolate the proven cause, apply a reversible correction, and retain the accepted outcome in server protection and recovery test report.

1. Confirm scope, access, dependencies, expected behavior, and safety constraints.
2. Execute the planned workflow while preserving configuration and operational checkpoints.
3. Test an expected path, a boundary condition, and the identified failure or exception.
4. Retest after correction and document rollback, ownership, escalation, and preventive action.

Scenario Analysis

• Identify the requirement with the greatest influence on security, high availability, backup, and disaster recovery.
• Compare two valid implementation or recovery choices using impact and evidence quality.
• Explain how the server protection and recovery test report should be retained and transferred to the operational owner.

Troubleshooting Guidance

Start with effective configuration, recent changes, identities, connectivity, health, logs, and timing. Use server protection and recovery test report to locate the earliest divergence between intended and observed behavior. Treat “backup jobs succeed while restore permissions prevent recovery” as a hypothesis until the corrected path passes the original test and a relevant boundary test.

Validation Checklist

• The implemented state for security, high availability, backup, and disaster recovery is traceable to approved requirements and inputs.
• The server protection and recovery test report contains baseline, test, exception, correction, and accepted-result evidence.
• Security, data handling, capacity, performance, resilience, downstream impact, and rollback were considered where relevant.
• Monitoring, escalation, recovery, documentation, and support ownership are clear.

Lesson Outcome

Learners can apply Security, High Availability, Backup, and Disaster Recovery, explain the decisions made, and defend the result with server protection and recovery test report.