Active-Passive Disaster Recovery Strategy for Quick Restoration

N10-009 By islever Editorial Last updated

Explain disaster recovery (DR) concepts.

Short answer

B An active-passive approach maintains a synchronized standby site to ensure rapid failover and quick restoration of services after a disaster.

Question

Which of the following recovery strategies should a company implement to ensure data center services are quickly restored and accessible after a disaster occurs?
  1. Backup and replication software
  2. Active-passive approach Correct Answer
  3. Cloud computing
  4. Remote manual failover

Key Takeaways

The exam tests the distinction between a recovery tool (replication software) and a recovery architecture (active-passive); only the latter guarantees the rapid service accessibility required by the scenario.

Learn why an active-passive approach is the best disaster recovery strategy for quickly restoring data center services after a disaster, distinguishing it from mere backup tools.

Common mistake: Choosing Backup and Replication Software (A): Candidates often select this because they associate data protection with recovery. However, replication is just a component; the active-passive *approach* is the overarching strategy that enables the swift failover needed for quick service restoration.

Expert Analysis

The question asks for a recovery strategy to ensure data center services are quickly restored and accessible after a disaster. This maps directly to Disaster Recovery (DR) concepts, specifically the architecture of sites.

B. Active-passive approach is the correct answer because it describes a DR topology where a secondary site is kept in sync with the primary but does not handle production traffic until a failover event occurs. In an active-passive setup, the passive site is ready to take over, ensuring that services can be restored relatively quickly compared to rebuilding from scratch or relying on manual restoration without pre-synchronized infrastructure. The key phrase "quickly restored" aligns with the automated or semi-automated failover capabilities inherent in active-passive configurations.

A. Backup and replication software is the most attractive wrong answer. While replication is essential for keeping the passive site current, "backup and replication software" is a tool, not a comprehensive "recovery strategy" or architectural model. Furthermore, simple backup (without continuous replication) involves restoring from tapes or snapshots, which takes significantly longer than failing over to an already-running passive site. Comments favoring A likely confuse the mechanism of data synchronization with the strategy of service availability.

C. Cloud computing is too generic; it is an infrastructure type, not a specific recovery strategy. D. Remote manual failover implies a slower process dependent on human intervention, contradicting the requirement for "quickly restored" services.

Exam Strategy

When asked about 'recovery strategies' or 'approaches' for availability, look for architectural terms like Active-Active, Active-Passive, Hot/Warm/Cold sites, rather than specific tools like 'software' or 'hardware'. Tools enable strategies, but the strategy defines the operational model and speed of recovery.

Frequently Asked Questions

What is the difference between Active-Passive and Active-Active?

Active-Passive has one site handling traffic and another standing by for failover, while Active-Active distributes traffic across multiple sites simultaneously for higher load balancing and redundancy.

Is replication software enough for disaster recovery?

No. Replication keeps data current, but you also need a defined strategy (like active-passive) and the infrastructure to execute the failover quickly when a disaster strikes.

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Community Votes

B
50%
A
50%

50% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 2 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 2

  1. ERB14 👍 1 Answered B
    Active-Passive Approach: Maintains a primary active site carrying operational traffic alongside a standby (passive) site synchronized with data. In the event of a disaster at the primary data center, traffic is rapidly directed to the passive site (failover), ensuring services are quickly restored and accessible with minimal downtime.
  2. Skri113xX 👍 1 Answered A
    Pretty sure it's A. This pattern is very common.

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