- A
Two: Sunday full and Thursday differential
Correct: full + differential.
- B
One: Thursday differential only
Why wrong: The full backup is also required as a base.
- C
Four: Monday through Thursday differentials
Why wrong: Only the latest differential is needed.
- D
Five: Monday through Thursday differentials plus full
Why wrong: Differential includes all changes since full, so only the latest differential is needed.
Question 502 of 1,000
Business Continuity, Disaster Recovery, and Incident Response →mediumMultiple ChoiceObjective-mapped
ISC2 CC Practice Question: Business Continuity, Disaster Recovery, and Incident Response
This CC practice question tests your understanding of business continuity, disaster recovery, and incident response. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
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?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Two: Sunday full and Thursday differential
A differential backup contains all changes since the last full backup. So you only need the full backup from Sunday and the differential from Thursday.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Two: Sunday full and Thursday differential
Why this is correct
Correct: full + differential.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
One: Thursday differential only
Why it's wrong here
The full backup is also required as a base.
- ✗
Four: Monday through Thursday differentials
Why it's wrong here
Only the latest differential is needed.
- ✗
Five: Monday through Thursday differentials plus full
Why it's wrong here
Differential includes all changes since full, so only the latest differential is needed.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A SOC analyst notices unusual lateral movement in the network at 2 AM. The IR playbook dictates: identify and contain (isolate the affected machine), then eradicate (remove the malware), then recover (restore from backup), then document. Skipping containment before eradication risks the attacker regaining access. Questions like this test the sequence and rationale of incident response phases.
What to study next
Got this wrong? Here's your next step.
Identify which CC exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this CC question test?
Business Continuity, Disaster Recovery, and Incident Response — This question tests Business Continuity, Disaster Recovery, and Incident Response — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Two: Sunday full and Thursday differential — A differential backup contains all changes since the last full backup. So you only need the full backup from Sunday and the differential from Thursday.
What should I do if I get this CC question wrong?
Identify which CC exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jul 4, 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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