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Disaster Recovery (DR) Planning

5 minutes 5 Questions

Disaster Recovery Planning (DRP) is the process of creating, testing, and maintaining a plan to restore IT systems to normal operations following a disaster. This usually includes restoring lost data, applications, hardware, and network infrastructure. The main goal of DRP is to minimize downtime, data loss, and financial impact on the organization. DR planning involves identifying critical IT systems, formulating recovery strategies, setting recovery time objectives (RTO), and recovery point objectives (RPO), developing step-by-step recovery procedures, designating roles and responsibilities, and maintaining and testing the plan regularly.

Guide to Disaster Recovery (DR) Planning

Disaster Recovery (DR) Planning is an integral part of a business's information security management.

Why is it important?
Disasters like system failures, natural disasters or cyber attacks can cause significant disruptions to your business operations. A well-planned DR strategy ensures that your business can quickly recover and minimize losses.

What is it?
A DR plan is a documented process or set of procedures to recover and protect a business IT infrastructure and data in the event of a disaster. It outlines the procedure to restore data, hardware, software and other operations critical to perform business activities.

How does it work?
A typical DR plan involves the following steps: Risk assessment & impact analysis, developing recovery strategies, assembling the DR plan, testing and maintaining the DR plan.

Exam Tips: Answering Questions on Disaster Recovery (DR) Planning
1. Understand the key components and steps involved in a DR plan 2. Familiarize yourself with concepts like Business Impact Analysis (BIA), disaster recovery sites, types of disasters, etc 3. During the exam, read each question carefully. Look for keywords that indicate what the question is really asking 4. Use process of elimination for multiple choice questions. Even if you're not certain of the correct answer, eliminating the most unlikely options can improve your chances 5. Review your answers before submitting. Make sure each answer aligns with the principles of effective DR planning.

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CISSP - Business continuity and disaster recovery planning Example Questions

Test your knowledge of Amazon Simple Storage Service (S3)

Question 1

During the implementation of a Disaster Recovery (DR) plan, what is the PRIMARY goal when establishing a mirrored site?

Correct Answer: Real-time replication of data and system availability

A mirrored site, in the context of disaster recovery, is designed to be an exact replica of the primary site with real-time synchronization. The primary goal of establishing a mirrored site is to ensure that data and systems are available with no or minimal downtime in the event of a disaster. It aims for real-time replication so that all data and transactions are mirrored as they occur, which allows for immediate failover if necessary. The other options mention asynchronous backup, scheduled duplication, and incremental archiving; while these are valid data protection strategies, they do not fulfill the immediate availability and replication goals of a mirrored disaster recovery site.

Question 2

After a flood occurs at a data center causing partial downtime, which Disaster Recovery (DR) plan implementation action should be immediately prioritized?

Correct Answer: Activate the alternate site

In this scenario, activating the alternate site ensures business continuity. Increasing backup frequency and the other options listed do not address the immediate concern of restoring accessibility and functionality to the affected data center.

Question 3

An organization is designing a disaster recovery strategy. They must minimize the risk of losing data stored in a server room due to potential flooding. What would be the best solution?

Correct Answer: Relocate the server room to an elevated floor

The correct answer minimizes the risk of damage caused by potential flooding by relocating the server room to an elevated floor, making it less likely to be affected by water damage. The other answers do not directly address the risk of flooding.

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