Chapter 1
Networking Concepts
Course: Comptia Network N10 009 Practice Test
Subject: Comptia Network N10 009
Chapter: Network Operations
Disaster Recovery (DR) refers to the strategies, processes, and tools that organizations use to restore critical IT services and infrastructure following a disruption, such as natural disasters, cyberattacks, or system failures. It is an essential component of business continuity planning (BCP).
1. DR Metrics
Disaster recovery (DR) metrics are critical for designing, implementing, and evaluating disaster recovery plans. They help organizations quantify the effectiveness of their recovery strategies, align IT objectives with business continuity goals, and minimize downtime and data loss during a disaster.
1.1 Recovery Point Objective (RPO)
- Definition: RPO defines the maximum acceptable amount of data loss, measured in time, that an organization can tolerate after a disaster. It sets the benchmark for how frequently data backups or replications should occur.
- Purpose:
Reduces the risk of losing critical data. Guides decisions on backup frequency and infrastructure requirements.
- Reduces the risk of losing critical data.
- Guides decisions on backup frequency and infrastructure requirements.
- Example: