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Difficulty: EasyResilience, High Availability, and Redundancy

An enterprise organization is designing a disaster recovery strategy for its critical e-commerce platform. To ensure continuous business operations, the organization requires an off-site recovery facility that is fully configured with active servers, network infrastructure, and real-time data synchronization, allowing it to immediately assume operational duties if the primary site fails. Which of the following recovery site types best satisfies these requirements?

  1. Hot siteAnswer
  2. B
    Cold site
  3. C
    Warm site
  4. D
    Mobile site

Answer

A hot site is a fully operational, mirrored facility capable of immediate failover with real-time data replication.
The option specifying a hot site is correct because a hot site provides a fully redundant, operational environment equipped with current hardware, operating systems, applications, and synchronized real-time data feeds. This allows the facility to take over primary operations immediately upon failover with virtually zero data loss.

Step-by-Step Solution

1
Analyze the operational requirements from the scenario.
The requirement specifies an off-site recovery facility with active hardware, pre-configured software, real-time data replication, and immediate failover capabilities.
Identifying the target Recovery Time Objective (RTO) and Recovery Point Objective (RPO) dictates which redundancy facility tier is required.
2
Compare site redundancy tiers against the specified constraints.
Cold sites lack equipment; warm sites lack live data replication; mobile sites provide temporary portable infrastructure; hot sites maintain live mirrored infrastructure ready for immediate operation.
Only a hot site satisfies the near-zero downtime requirement through live data synchronization and ready-to-run systems.

Key Concept

Disaster Recovery Site Types and Redundancy
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Topics

Resilience, High Availability, and Redundancy

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