Incident Recovery: Restoring Systems and Data After Cyber Attacks

Question 1

Which of the following is NOT a primary goal of incident recovery?

Accepted Answer

Preventing future attacks.

Answer

Recovering affected systems.

Answer

Restoring data integrity.

Answer

Minimizing downtime.

Question 2

A company has experienced a ransomware attack and lost access to critical data. Which recovery strategy would be MOST appropriate in this scenario?

Accepted Answer

Restoring data from backups.

Answer

Contacting the FBI.

Answer

Rebuilding affected systems from scratch.

Answer

Negotiating with the attackers.

Question 3

What is the primary purpose of a disaster recovery plan (DRP) in the context of incident recovery?

Accepted Answer

To outline the steps for restoring critical business functions after a major disruption.

Answer

To identify and mitigate security vulnerabilities.

Answer

To collect and analyze incident logs.

Question 4

What is a key benefit of using a hot site for disaster recovery?

Accepted Answer

Immediate access to fully functional systems.

Answer

Cost-effectiveness compared to other recovery options.

Answer

Ability to test recovery procedures more frequently.

Answer

Simplified setup and configuration.

Question 5

When restoring data from backups during incident recovery, what is the MOST important factor to consider?

Accepted Answer

The integrity and reliability of the backups.

Answer

The format of the backups.

Answer

The age of the backups.

Answer

The size of the backups.

Question 6

What is the main purpose of a system image backup in incident recovery?

Accepted Answer

To restore the entire operating system and applications to a previous state.

Answer

To back up only critical data files.

Answer

To create a snapshot of the system's configuration.

Question 7

Which of the following is NOT a key component of a comprehensive incident recovery plan?

Accepted Answer

A list of all network devices and their configurations.

Answer

Recovery procedures for critical systems and data.

Answer

Communication protocols for stakeholders.

Question 8

What is the BEST approach to ensure affected systems are secure before bringing them back online after an incident?

Accepted Answer

Performing a thorough security assessment and remediation.

Answer

Running antivirus software on the systems.

Answer

Restoring the systems to the last known good configuration.

Question 9

What is the primary purpose of conducting a post-incident review?

Accepted Answer

To identify areas for improvement in the incident response and recovery processes.

Answer

To assess the financial impact of the incident.

Answer

To determine the root cause of the incident.

Question 10

Which of the following is an example of a non-technical factor that can significantly impact the success of incident recovery?

Accepted Answer

Effective communication and collaboration among stakeholders.

Answer

The availability of adequate hardware resources.

Answer

The speed of internet connectivity.

Question 11

Which of the following is NOT a primary goal of Incident Recovery?

Accepted Answer

Identifying the attacker's identity and gathering evidence for prosecution.

Answer

Minimizing downtime and data loss caused by the incident.

Answer

Restoring critical systems and services to normal operation.

Question 12

What is a critical aspect of validating data integrity after restoring a system from a backup?

Accepted Answer

Comparing checksums of the original and restored data.

Answer

Checking the backup file's creation timestamp.

Answer

Verifying the file size of the original and restored data.

Question 13

When rebuilding a compromised system, which approach is most secure regarding operating system installation?

Accepted Answer

Installing a clean copy of the operating system from a trusted source.

Answer

Performing a full system scan with an antivirus program to remove infections.

Answer

Restoring the system from a previous state using a disk imaging tool.

Question 14

Which of the following actions is least likely to be included in a company's post-incident recovery review?

Accepted Answer

Publicly disclosing vulnerabilities exploited during the incident.

Answer

Evaluating the effectiveness of incident response and recovery procedures.

Answer

Identifying root causes and contributing factors to the incident.

Question 15

What is the primary purpose of implementing a 'lessons learned' document after an incident?

Accepted Answer

To improve future incident response and recovery efforts based on experience.

Answer

To assign blame and identify individuals responsible for the incident.

Answer

To document the financial losses incurred due to the incident.

Question 16

Which of the following is an example of a compensating control that might be implemented during the recovery process if a critical security appliance cannot be immediately replaced?

Accepted Answer

Implementing a manual workaround to provide similar functionality.

Answer

Disabling all network traffic until the appliance is replaced.

Answer

Ignoring the issue and proceeding with normal operations.

Question 17

Which of the following is NOT a recommended practice when restoring network connectivity during incident recovery?

Accepted Answer

Connecting all systems to the network without prior security checks.

Answer

Implementing network segmentation to isolate recovered systems until verified.

Answer

Changing all passwords and rotating cryptographic keys for affected systems.

Question 18

Which of the following is NOT a common step in the incident recovery process?

Accepted Answer

Replacing all affected hardware.

Answer

Reconfiguring network security settings.

Answer

Rebuilding compromised systems.

Answer

Restoring data from backups.

Question 19

What is the primary benefit of implementing a 'least privilege' principle during incident recovery?

Accepted Answer

Minimizing the potential for further damage by restricting user access.

Answer

Streamlining the recovery process by simplifying access controls.

Answer

Ensuring all users have equal access to critical systems.

Question 20

An organization has suffered a ransomware attack. Which recovery strategy is most appropriate in this scenario?

Accepted Answer

Restoring data from backups.

Answer

Continuing operations without restoring data.

Answer

Replacing all compromised hardware.

Answer

Negotiating with the attackers for the decryption key.

Question 21

What is the significance of conducting a 'post-incident review' after a successful recovery?

Accepted Answer

Identifying weaknesses in security practices to prevent future attacks.

Answer

Assigning blame for the incident.

Answer

Finalizing the incident response plan.

Question 22

Which of the following is a critical consideration when choosing backup methods for incident recovery?

Accepted Answer

The frequency and type of data changes.

Answer

The number of employees accessing data.

Answer

The availability of cloud storage services.

Answer

The size of the organization's network.

Question 23

A company decides to implement a 'system image' backup approach. What is the primary advantage of this method?

Accepted Answer

Rapid recovery of entire system configurations.

Answer

Cost-effectiveness compared to other backup methods.

Answer

Minimal storage space requirements.

Answer

Ability to selectively restore individual files.

Question 24

Why is it essential to test recovery procedures regularly?

Accepted Answer

To ensure the effectiveness and efficiency of the plan.

Answer

To identify potential vulnerabilities in the system.

Answer

To satisfy regulatory compliance requirements.

Question 25

Which of the following is a key factor to consider when establishing a recovery time objective (RTO)?

Accepted Answer

The criticality of the affected systems and data.

Answer

The number of employees impacted by the outage.

Answer

The cost of recovery operations.

Answer

The time required to rebuild compromised systems.

Question 26

An organization's incident response plan should include:

Accepted Answer

Detailed steps for recovering affected systems and data.

Answer

A comprehensive history of past security incidents.

Answer

A list of all employees and their contact information.

Question 27

What is the role of 'data sanitization' in the incident recovery process?

Accepted Answer

Securely removing sensitive information from compromised systems.

Answer

Restoring data from backups.

Answer

Rebuilding affected systems.