DRI IT Disaster Recovery and Resilience 2

Question 1

Which cloud-based disaster recovery model uses cloud infrastructure to maintain a continuously updated replica of production systems, enabling rapid failover?

Accepted Answer

Disaster Recovery as a Service (DRaaS) with active replication

Answer

DRaaS with active replication continuously replicates production data and system state to cloud infrastructure, enabling rapid failover with minimal data loss and recovery times comparable to on-premises hot sites at a fraction of the capital cost.

Question 2

What is 'database shadowing' in the context of IT disaster recovery?

Accepted Answer

Running concurrent transactions against both the primary and backup databases in real time to maintain synchronization

Answer

Database shadowing involves simultaneously writing transactions to both the primary database and one or more shadow copies in real time, maintaining continuously synchronized duplicates that can be activated immediately if the primary fails.

Question 3

Which IT resilience technique distributes application workloads across multiple geographic locations, allowing each location to handle the full production load if others become unavailable?

Accepted Answer

Active-active geo-redundant architecture

Answer

Active-active geo-redundant architecture runs production workloads simultaneously across multiple geographic locations, each capable of handling the full load—enabling automatic failover with zero (or near-zero) downtime when a location fails.

Question 4

In IT disaster recovery planning, what is the 'Recovery Time Actual (RTA)' metric used for?

Accepted Answer

Measuring the actual time taken to recover a system during a test or actual incident, for comparison against the RTO target

Answer

Recovery Time Actual (RTA) measures the real time taken to recover a system during an exercise or actual incident, enabling comparison against the RTO target to determine whether the recovery solution is meeting its performance requirements.

Question 5

What is the purpose of conducting a 'tabletop test' specifically for IT disaster recovery?

Accepted Answer

To walk recovery team members through a disaster scenario to validate procedures, roles, and decision-making without activating actual recovery systems

Answer

An IT DR tabletop test involves walking key recovery personnel through a simulated disaster scenario to validate that procedures are understood, roles are clear, and decision-making sequences are logical—without the risk and cost of actually activating recovery systems.

(DRI) Disaster Recovery Institute International Certification Practice Test

(DRI) Disaster Recovery Institute International Certification Practice Test

DRI IT Disaster Recovery and Resilience 2