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📖 What is Disaster Recovery Plan (DRP)?

A Disaster Recovery Plan outlines the procedures for restoring IT infrastructure and data following a disruptive event. It details steps for backup, recovery, and failover, aiming to minimize downtime and data loss. Effective DRPs include regular testing and updates.

🥋 Sensei Says:

"RTO and RPO are frequently tested. A lower RTO/RPO generally requires a more expensive solution. Understand the implications of different backup strategies (full, incremental, differential) on RTO and RPO. Be prepared to calculate potential data loss based on RPO values."

📚 Certification: CompTIA Security+ Certification Exam (SY0-701)

🔑 What are the Key Concepts of Disaster Recovery Plan (DRP)?

▸ RTO (Recovery Time Objective) defines the maximum acceptable downtime after a disaster; a lower RTO usually means higher costs.
▸ RPO (Recovery Point Objective) specifies the maximum acceptable data loss measured in time; a shorter RPO requires more frequent backups.
▸ Backup strategies (full, incremental, differential) impact both RTO and RPO, with trade-offs between speed, storage, and complexity.
▸ A DRP should include detailed procedures for communication, data restoration, system failover, and post-recovery verification.
▸ Regular testing and updates are crucial to ensure the DRP remains effective and reflects changes in the IT environment.

🎯 How does Disaster Recovery Plan (DRP) appear on the SY0-701 Exam?

You may be asked to identify the best backup strategy to meet a specific RPO and RTO requirement for a critical database server.

A scenario might describe a company experiencing a ransomware attack – determine which DRP components are most important for restoring operations.

Expect questions about calculating potential data loss given a specific RPO and the time of the last successful backup.

❓ Frequently Asked Questions

How do RTO and RPO influence the cost of a DRP?

Lower RTO and RPO values necessitate more robust (and expensive) solutions like real-time replication or frequent full backups. Higher values allow for simpler, cheaper options.

What's the difference between a DRP and a BCP (Business Continuity Plan)?

A DRP focuses on restoring IT systems, while a BCP encompasses the broader strategies for maintaining business functions during and after a disruption, including non-IT aspects.

Why is testing a DRP so important, and what types of tests are there?

Testing validates the plan's effectiveness and identifies weaknesses. Tests range from tabletop exercises (discussion-based) to full simulations, revealing gaps in procedures or resources.

Related Terms from CompTIA Security+ Certification Exam

Air Gap Risk Mitigation Privileged Access Management (PAM) Honeypot Wireless Encryption Protocol (WEP, WPA, WPA2, WPA3) VPN

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