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ISC2 CC Practice Question: Business Continuity, Disaster Recovery, and Incident Response
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?
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
✓
4 (Sunday full and Monday, Tuesday, Wednesday incrementals)
For incremental backups, you need the last full backup and all incrementals since then. So Sunday full + Monday, Tuesday, Wednesday incrementals (4 sets).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
5 (Sunday full and all incrementals through Thursday)
Why it's wrong here
Thursday's backup is not yet taken.
- ✓
4 (Sunday full and Monday, Tuesday, Wednesday incrementals)
Why this is correct
Full backup plus each incremental since then.
- ✗
1 (Sunday full only)
Why it's wrong here
Incrementals needed for changes since Sunday.
- ✗
2 (Sunday full and Wednesday incremental)
Why it's wrong here
Need all incrementals from Sunday to Wednesday.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.