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Business Continuity, Disaster Recovery, and Incident Response

Practise ISC2 Certified in Cybersecurity CC Business Continuity, Disaster Recovery, and Incident Response practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

94 questions24 easy44 medium26 hard

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What to know about Business Continuity, Disaster Recovery, and Incident Response

Business Continuity, Disaster Recovery, and Incident Response questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Business Continuity, Disaster Recovery, and Incident Response exam traps

  • Answering from memory before reading the full scenario.
  • Missing a constraint such as cost, availability, security, scope or command context.
  • Choosing a broad answer when the question asks for the most specific fix.
  • Ignoring why the wrong options are tempting.

Question index

All Business Continuity, Disaster Recovery, and Incident Response questions (94)

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1

An organization is implementing backup strategies. Which THREE are characteristics of differential backups? (Select THREE)

Medium
2

An organization is developing a Business Continuity Plan (BCP). Which analysis is performed first to identify critical business functions and their dependencies?

Easy
3

During a disaster recovery test, the IT team successfully restored systems from backups and achieved the recovery time objective (RTO). However, users could not resume normal work because additional configuration and data validation were needed. Which metric was NOT met?

Medium
4

During a ransomware incident, the incident response team needs to communicate with stakeholders. According to best practices, which TWO groups should be notified immediately? (Select TWO.)

Medium
5

A small business wants to minimize backup storage space and backup time, knowing that restoration may be slower. Which backup strategy should they choose?

Medium
6

Which TWO of the following are common indicators of a potential data breach? (Choose two.)

Easy
7

After an incident is resolved, which phase involves reviewing what happened, documenting lessons learned, and updating procedures?

Easy
8

An organization is selecting a recovery site strategy that offers the fastest recovery time, measured in hours, to minimize downtime for critical applications. Which recovery site type best meets this requirement?

Medium
9

A company experiences a data breach involving personal data of EU residents. Under GDPR, what is the maximum time within which the organization must notify the supervisory authority?

Medium
10

An organization is re-evaluating its disaster recovery site options. Which TWO of the following describe characteristics of a warm site?

Medium
11

During a data breach incident, the incident response team discovers that personally identifiable information (PII) of European Union residents was compromised. According to GDPR, what is the maximum time frame for notifying the supervisory authority?

Medium
12

A company experiences a ransomware attack that encrypts all files on a file server. The IT team decides to restore the server from the most recent full backup taken 24 hours ago, followed by all differential backups taken since then. If the last full backup was on Sunday at midnight, and the attack occurs on Wednesday at 6:00 AM, with differential backups taken daily at noon, how many differential backups must be restored?

Hard
13

Which phase of the incident response process involves restoring systems to normal operation and applying patches to prevent recurrence?

Medium
14

An organization wants to ensure that its critical business functions can continue operating during a disruption. Which plan specifically addresses keeping the business running during a disruption?

Easy
15

A security analyst detects unusual outbound traffic from a server that suggests a data breach. According to GDPR, within what timeframe must the organization notify the supervisory authority?

Hard
16

A company is creating a backup strategy for its critical database. The database is updated continuously, and the company can tolerate up to 2 hours of data loss. Which TWO backup methods would best help achieve a recovery point objective (RPO) of 2 hours? (Select TWO.)

Medium
17

An organization's recovery time objective (RTO) for its customer database is 4 hours, and the recovery point objective (RPO) is 1 hour. The database is backed up every hour using full backups. A disaster occurs at 2:00 PM, and the last successful backup was at 1:00 PM. The system is restored and operational at 5:30 PM, but data from 1:00 PM to 2:00 PM is lost. Which statement is correct?

Medium
18

A company uses a reciprocal agreement for disaster recovery. What is a primary risk of this strategy?

Medium
19

An organization uses a 3-2-1 backup strategy. They have a primary full backup on a local NAS, a second copy on tape stored offsite, and a third copy in the cloud. During a ransomware attack, the local NAS and the tape library are both encrypted. Which copy should be used for recovery?

Hard
20

A financial institution's incident response team is handling a denial-of-service (DoS) attack that is affecting customer access. The team has identified the attack source IPs and implemented filtering rules on the perimeter firewall. Which phase of incident response is being performed?

Medium
21

An organization has an RTO of 4 hours and an RPO of 1 hour for its customer database. After a disaster, the IT team restores the database from backups that are 2 hours old, and the system becomes operational in 3 hours. Which of the following is true?

Hard
22

An organization's backup schedule: Full backup every Sunday, incremental backups Monday-Saturday. If a failure occurs on Thursday, how many backup sets are needed to restore the data?

Medium
23

During a disaster recovery test, the IT team discovers that restoring all data from full backups takes 48 hours, exceeding the RTO. Which backup strategy would reduce restore time while maintaining a similar backup window?

Medium
24

Which recovery site strategy provides the shortest recovery time objective (RTO), typically measured in hours, by maintaining a fully mirrored environment that can be activated immediately?

Easy
25

Which recovery site strategy provides the fastest Recovery Time Objective (RTO), typically within hours, by maintaining a fully operational mirrored environment?

Easy
26

An organization is creating a Business Continuity Plan (BCP). Which analysis should be performed first to identify critical business functions and their dependencies?

Easy
27

An organization is updating its incident response plan. Which THREE elements should be included in the preparation phase? (Select THREE.)

Hard
28

A security analyst detects unusual outbound network traffic from a server that normally does not communicate externally. After confirming a malware infection, the analyst isolates the server from the network. Which incident response phase is the analyst performing?

Medium
29

A healthcare organization experiences a data breach involving protected health information (PHI). Under GDPR, within how many hours must the organization notify the relevant supervisory authority?

Medium
30

A company has a Recovery Point Objective (RPO) of 1 hour for its financial database. It performs full backups every night at 11 PM and incremental backups every 4 hours. If the system fails at 2:30 PM, what is the maximum data loss in terms of time?

Hard
31

An organization's business continuity plan designates a maximum tolerable downtime (MTD) of 8 hours for its order processing system. The system's recovery time objective (RTO) is set at 4 hours, and work recovery time (WRT) is estimated at 2 hours. If a disaster occurs at 10:00 AM and the system is restored at 2:00 PM, but additional configuration and data validation take until 3:30 PM to complete, what is the total downtime and is the MTD met?

Hard
32

During a ransomware incident, the incident response team has completed the containment and eradication phases. According to the NIST incident response framework, which THREE of the following activities are part of the post-incident activity phase?

Hard
33

After a ransomware attack, the IT team restores systems from backups. The CEO asks how quickly data can be recovered. Which metric addresses the acceptable amount of data loss?

Medium
34

During an incident, the incident response team identifies that a malware infection is spreading. They isolate affected systems to prevent further damage. Which phase of the incident response process are they performing?

Medium
35

Which type of backup copies all data that has changed since the last full backup, regardless of any subsequent incremental or differential backups?

Easy
36

During an incident, the security team detects unusual outbound traffic from a server that normally does not communicate externally. The traffic appears to be encrypted and is sent to an unknown IP address. Which incident category best describes this scenario?

Hard
37

A company is developing a business continuity plan. Which document identifies critical business functions and their dependencies, including the maximum acceptable downtime?

Easy
38

A company's critical database must be recovered within 4 hours after a disaster, and they can tolerate losing up to 1 hour of data. During a disaster, after the systems are restored, it takes an additional 30 minutes to verify data integrity and resume normal operations. Which metric is represented by the 4-hour requirement?

Medium
39

Which backup strategy offers the fastest restore time but requires the most storage space?

Medium
40

During an incident, a security analyst identifies a SQL injection attack. The team contains the threat by blocking the attacker's IP. Which step should be performed next in the incident response process?

Hard
41

Which incident category involves an attempt to make a system or network resource unavailable to its intended users?

Medium
42

A company performs a full backup every Sunday and incremental backups on other days. On Wednesday, a server failure occurs. Which backups are needed to restore the server to its state at Tuesday's backup?

Medium
43

Which type of incident involves an attacker attempting to make a system or network resource unavailable to legitimate users?

Medium
44

During a security incident, a company must notify stakeholders without revealing sensitive details that could worsen the situation. Which TWO groups should typically be notified immediately according to incident response best practices? (Select TWO)

Medium
45

Which incident category involves an attacker tricking an employee into revealing their login credentials through a fraudulent email?

Easy
46

An organization is adopting the 3-2-1 backup rule. They currently have data on a primary server and a daily backup to an external hard drive. To comply with the rule, what is the minimum additional requirement?

Medium
47

An organization adopts the 3-2-1 backup rule. Which combination of backups satisfies this rule?

Medium
48

An organization determines that its critical financial application has a maximum tolerable downtime (MTD) of 8 hours. The recovery time objective (RTO) is set to 6 hours, and the work recovery time (WRT) is 2 hours. If the application is restored from backup in 5 hours, but additional configuration takes 3 hours, what is the total downtime, and is the MTD met?

Medium
49

A security analyst detects unusual outbound network traffic from a server that typically only handles internal file sharing. The traffic appears to be exfiltrating sensitive data. Which phase of the incident response process should the analyst initiate next?

Medium
50

A security analyst is prioritizing incidents based on severity. Which TWO factors are most important for determining incident severity?

Medium
51

An organization experiences a ransomware attack that encrypts critical files. The incident response team follows the standard IR phases. After containing the infection and eradicating the malware, what is the next phase?

Medium
52

During a security incident, the crisis communication team must notify stakeholders. According to best practices, which THREE groups should always be included in initial notifications? (Select THREE.)

Hard
53

A company’s backup strategy: Full backup every Sunday, differential backups Monday through Saturday. On Thursday, the system fails. How many backups are needed to restore the data?

Medium
54

Which phase of the incident response process involves actions to stop the incident from causing further damage, such as isolating affected systems?

Easy
55

During a data breach investigation, the incident response team discovers that personally identifiable information (PII) of EU residents was exfiltrated. Under GDPR, what is the maximum time frame for notifying the supervisory authority?

Hard
56

A hospital's electronic health record (EHR) system must be available 24/7. The disaster recovery plan specifies an RTO of 4 hours and an RPO of 1 hour. Which combination of backup and site strategy best meets these objectives?

Medium
57

Which of the following best describes a Disaster Recovery Plan (DRP)?

Easy
58

Which of the following is a key component of the 3-2-1 backup rule?

Easy
59

A company has a reciprocal agreement with another organization for disaster recovery. During a major outage, the company attempts to activate the agreement but finds that the partner's facility is also impacted by the same disaster. This scenario highlights a primary disadvantage of which recovery strategy?

Hard
60

A company is creating a business continuity plan. Which analysis should be performed first to identify critical business functions and their dependencies?

Easy
61

An organization needs to prioritize recovery of systems after a disaster. Which metric directly indicates the maximum acceptable outage time for a business function?

Medium
62

During a BIA, the maximum tolerable downtime for a critical application is determined to be 4 hours. The IT team estimates system recovery will take 2 hours, but additional manual work to reconcile data will take 1 hour. What is the Recovery Time Objective (RTO)?

Medium
63

An organization stores backup data on a tape drive (onsite) and also replicates critical data to a cloud storage service. This practice best exemplifies which backup rule?

Medium
64

A company is evaluating backup strategies for its critical database. Which TWO of the following are correct statements about backup types?

Easy
65

An organization is preparing its Business Continuity Plan (BCP). Which process identifies critical business functions and the impact of disruptions?

Easy
66

A company follows the 3-2-1 backup rule. It has two full backups: one on an external hard drive in the server room and one on tape in a safe on-site. Which step should be taken to fully comply with the rule?

Hard
67

A financial institution requires near-instantaneous recovery of its trading platform after a disaster. The recovery time objective (RTO) is 2 hours, and the recovery point objective (RPO) is 15 minutes. Which recovery site strategy best meets these requirements?

Hard
68

A company’s disaster recovery plan specifies an RTO of 4 hours and an RPO of 1 hour for its critical database. The database is backed up every hour using incremental backups. After a catastrophic failure, restoration takes 3 hours, but the database must be rolled forward using transaction logs. The total time to make the database fully operational is 5 hours. Which statement is correct?

Hard
69

An organization is choosing a backup strategy to minimize restore time. Which TWO backup types require only the most recent full backup and the latest differential backup to restore?

Medium
70

A company is implementing a backup strategy. Which TWO of the following are characteristics of incremental backups? (Choose two.)

Medium
71

Which incident category involves an attacker tricking an employee into revealing credentials?

Easy
72

During a disaster recovery test, an organization uses a warm site. The site has partially configured servers and network infrastructure but lacks recent data. The recovery team expects to have the system operational within 2 days. Which recovery metric is most directly addressed by the warm site's capabilities?

Hard
73

An organization experiences a data breach involving personally identifiable information (PII) of European Union residents. According to GDPR, which THREE of the following are required actions?

Hard
74

An organization is developing an incident response plan. Which TWO phases are part of the incident response lifecycle according to the NIST framework? (Select two.)

Medium
75

An incident response team is analyzing a data breach. Which THREE actions are part of the 'Lessons Learned' phase? (Select THREE)

Hard
76

A security team is developing an incident response plan. Which THREE of the following are essential components of crisis communications during a data breach? (Choose three.)

Hard
77

A company is selecting a recovery site strategy. Which TWO factors should be considered when choosing between a hot site and a warm site? (Select TWO.)

Medium
78

An organization is evaluating recovery site options. Which TWO factors are most critical when selecting between a hot site and a warm site? (Select TWO.)

Medium
79

Which phase of the incident response process involves restoring systems to normal operations and confirming they are functioning correctly?

Easy
80

During an incident, a security analyst detects unusual network traffic from a workstation that is exfiltrating data to an external IP address. The analyst isolates the workstation. Which incident response phase does the isolation action belong to?

Hard
81

A company is selecting a recovery site strategy. They need to balance cost and recovery time. Which THREE factors should they consider when choosing between hot, warm, and cold sites? (Select three.)

Hard
82

Which backup method copies all data that has changed since the last full backup, regardless of subsequent incremental or differential backups?

Easy
83

A financial services company is conducting a Business Impact Analysis (BIA) for its online banking platform. Which THREE of the following are correctly defined metrics used in BIA?

Medium
84

After a major power outage, an organization needs to declare a disaster and activate its DRP. Which THREE elements should be included in the initial crisis communication?

Hard
85

During which phase of the incident response process would the team identify the root cause of a security incident?

Easy
86

A company's Business Impact Analysis (BIA) determines that its online payment system can tolerate a maximum of 2 hours of downtime. The IT team estimates that restoring the system from backups will take 1 hour, and the team needs another 30 minutes to verify data integrity and resume normal operations. Which metric does the 30-minute verification period represent?

Medium
87

A healthcare organization suffers a data breach involving protected health information (PHI). The incident occurred on Monday, and the organization discovers it on Wednesday. Under GDPR, if the breach affects EU residents, what is the deadline for notifying the supervisory authority?

Hard
88

A company uses a backup strategy where on Monday a full backup is taken, and on Tuesday only data changed since Monday is backed up. On Wednesday, the backup includes all data changed since Monday. What type of backup is the Wednesday backup?

Medium
89

Which type of recovery site is pre-configured with hardware and software, but does not have live data, typically requiring days to become operational?

Easy
90

Which recovery site strategy provides the fastest recovery time, typically within hours, and is a fully mirrored environment ready to take over operations immediately?

Easy
91

An organization experiences a denial-of-service (DoS) attack. Which TWO actions should the incident response team take during the containment phase? (Select two.)

Easy
92

During a disaster, an organization activates a reciprocal agreement with another company. What is a primary risk associated with this strategy?

Hard
93

An organization's BIA determines that the payroll system has a Maximum Tolerable Downtime (MTD) of 4 hours. The current recovery plan has an RTO of 2 hours and an RPO of 1 hour. What is the maximum Work Recovery Time (WRT) allowed to meet the MTD?

Hard
94

Which backup strategy requires the least amount of time to perform a daily backup but the most time to perform a full restore?

Easy

Frequently asked questions

What does the Business Continuity, Disaster Recovery, and Incident Response domain cover on the CC exam?
Business Continuity, Disaster Recovery, and Incident Response questions test whether you can apply the concept in context, not just recognise a definition.
How many questions are in this domain?
This page lists all 94 Business Continuity, Disaster Recovery, and Incident Response questions in the CC question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
What is the best way to practise this domain?
Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
Can I practise only Business Continuity, Disaster Recovery, and Incident Response questions?
Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.
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