Exam CISSP topic 1 question 251 discussion

I choose A

Yes, should be A

Are there incorrect answers on the real test? No way it can be D

The DRP testing that carries the MOST operational risk is the Cutover testing. This is because it involves switching from the primary system to the backup system, which can result in a temporary loss of service or data. It is essential to ensure that all systems are tested, and the backup system is fully functional before implementing cutover testing. Parallel testing is a type of disaster recovery testing where both the primary and the backup systems are operational simultaneously. The primary system continues to handle normal operations, while the backup system runs in parallel to ensure that it is functioning correctly. Parallel testing can be useful to identify any discrepancies between the primary and backup systems. This type of testing allows for a smooth transition to the backup system in case of a disaster, as it is already running and able to take over. It also helps to ensure that the backup system is up-to-date and accurately reflects the primary system's data and configurations.

in the Read through or tabletop test, response team would be least prepared, thus it carries the most operational risk when the disaster would take place

A. Cutover Cutover testing is a type of disaster recovery plan (DRP) testing that simulates a real disaster scenario by switching the entire system over to the disaster recovery site. It is the most realistic form of testing and carries the most operational risk because it involves shutting down the primary systems and switching to the disaster recovery site. This can cause a significant disruption to business operations and it is important to have a well-planned and well-executed cutover test to minimize the risk of issues.

Since Tabletop is just discussion, it does not carry operational risk. But cutover does that since the system will be interrupted.

https://www.bcmpedia.org/wiki/Test_-_Cutover

Paper test: Individuals read and annotate recovery plans. Walkthrough test: Groups walk through plans to identify issues and changes. Simulation: Groups go through a simulated disaster to identify whether emergency response plans are adequate. Parallel test: Recovery systems are built/set up and tested to see if they can perform actual business transactions to support key processes. Primary systems still carry the full production workload. Cutover test: Recovery systems are built/set up to assume the full production workload. You disconnect primary systems.

Obviously it should be A

agree with A