Quick Answer
The correct answer is to implement a write-once read-many (WORM) storage device for system log integrity protection. WORM technology ensures that once data is written, it cannot be altered, deleted, or overwritten, making logs tamper-proof at rest. This directly addresses the core requirement of preserving the forensic value of audit trails after generation. On the ISC2 Certified in Cybersecurity CC exam, this question tests your understanding of data integrity controls versus other security functions; a common trap is confusing encryption (which protects confidentiality in transit) with integrity at rest. Remember that encryption secures the data while moving, but WORM secures the data where it sleeps. For the exam, think of WORM as a digital “permanent marker” for logs—once written, it’s set in stone. A useful memory tip: WORM stands for “Write Once, Read Many,” and you can recall it as “Write Once, Resist Modification.”
This CC practice question tests your understanding of security operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
An organization wants to ensure that system logs are tamper-proof after generation. Which control should be implemented?
Compress logs before archiving.
Why wrong: Compression does not provide integrity protection.
Use a write-once read-many (WORM) storage device.
WORM devices ensure data cannot be overwritten or deleted.
Store logs on the local hard drive of each server.
Why wrong: Local storage can be altered if the server is compromised.
Encrypt logs during transmission.
Why wrong: Encryption protects confidentiality in transit, not integrity at rest.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use a write-once read-many (WORM) storage device.
Option C is correct because WORM storage prevents modification or deletion of logs. Option A local storage is not tamper-proof. Option B compression does not prevent tampering. Option D encryption protects in transit but not at rest on the storage device.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Compress logs before archiving.
Why it's wrong here
Compression does not provide integrity protection.
Use a write-once read-many (WORM) storage device.
Why this is correct
WORM devices ensure data cannot be overwritten or deleted.
Related concept
Read the scenario before looking for a memorised answer.
Store logs on the local hard drive of each server.
Why it's wrong here
Local storage can be altered if the server is compromised.
Encrypt logs during transmission.
Why it's wrong here
Encryption protects confidentiality in transit, not integrity at rest.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
What to study next
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
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
The correct answer is: Use a write-once read-many (WORM) storage device. — Option C is correct because WORM storage prevents modification or deletion of logs. Option A local storage is not tamper-proof. Option B compression does not prevent tampering. Option D encryption protects in transit but not at rest on the storage device.
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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 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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