Quick Answer
The answer is simulation test and parallel test. A simulation test creates a controlled, isolated scenario—like a simulated power outage or ransomware attack—to evaluate team response and procedural accuracy without risking live systems, while a parallel test runs the disaster recovery site alongside the production environment to validate failover processes and data replication under real workload conditions. On the ISC2 Certified in Cybersecurity CC exam, this question tests your understanding of DR plan validation methods, often appearing as a multi-select item where you must distinguish active testing from passive reviews like checklists or tabletop exercises. A common trap is confusing a parallel test with a full-interruption test, which halts production; remember that parallel tests keep production running to verify synchronization mechanisms like asynchronous replication. For a memory tip, think “Simulate the scenario, parallel the production”—both methods prove the plan works without breaking live operations.
This CC practice question tests your understanding of business continuity, dr & incident response. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO are appropriate methods to test a disaster recovery plan?
Parallel test
A common DR test method.
Regression test
Why wrong: Software testing technique.
Acceptance test
Why wrong: Not a standard DR test type.
Simulation test
Valid DR test method.
Unit test
Why wrong: Software testing technique.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Parallel test
A parallel test is appropriate because it runs the DR site in parallel with the production environment, allowing validation of failover processes and data replication without impacting live operations. This method verifies that the backup systems can handle real workloads and that synchronization mechanisms (e.g., asynchronous replication or log shipping) are functioning correctly. It provides a high-confidence check of the DR plan's effectiveness while maintaining business continuity.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Parallel test
Why this is correct
A common DR test method.
Related concept
Read the scenario before looking for a memorised answer.
Regression test
Why it's wrong here
Software testing technique.
Acceptance test
Why it's wrong here
Not a standard DR test type.
Simulation test
Why this is correct
Valid DR test method.
Related concept
Read the scenario before looking for a memorised answer.
Unit test
Why it's wrong here
Software testing technique.
Common exam traps
ISC2 often tests the distinction between DR testing methods (parallel, simulation, walkthrough) and software development testing types (unit, regression, acceptance), leading candidates to incorrectly select development tests as valid DR validation techniques.
Detailed technical explanation
Parallel testing often involves setting up a secondary site with identical hardware and network configurations, then using tools like Oracle Data Guard or SQL Server Always On Availability Groups to replicate transactions. The test confirms that the DR site can assume production roles, including DNS changes, load balancer reconfiguration, and storage array failover (e.g., using NetApp SnapMirror or EMC RecoverPoint). A subtle behavior is that parallel tests may expose latency issues or split-brain scenarios if replication is not properly quiesced, which is why they require careful coordination and monitoring.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Business Continuity, DR & Incident Response — study guide chapter
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FAQ
Business Continuity, DR & Incident Response — This question tests Business Continuity, DR & Incident Response — Read the scenario before looking for a memorised answer..
The correct answer is: Parallel test — A parallel test is appropriate because it runs the DR site in parallel with the production environment, allowing validation of failover processes and data replication without impacting live operations. This method verifies that the backup systems can handle real workloads and that synchronization mechanisms (e.g., asynchronous replication or log shipping) are functioning correctly. It provides a high-confidence check of the DR plan's effectiveness while maintaining business continuity.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.
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