This CS0-003 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.
Which TWO of the following are best practices for secure log management? (Choose TWO)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable log encryption in transit and at rest
Option A is correct because encrypting logs in transit (e.g., using TLS/SSL for syslog over TCP 6514) and at rest (e.g., AES-256 encryption on the storage volume) ensures confidentiality and integrity, preventing unauthorized access or tampering. This aligns with security frameworks like NIST SP 800-92 and PCI DSS requirements for protecting log data.
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.
✓
Enable log encryption in transit and at rest
Why this is correct
Encryption protects log integrity and confidentiality.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Implement log aggregation from multiple sources
Why this is correct
Centralized logging improves visibility and correlation.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable logging on non-critical systems to save space
Why it's wrong here
Disabling logging reduces visibility and is not a best practice.
✗
Store logs on the same server for easy access
Why it's wrong here
Storing logs on the same server increases risk if the server is compromised.
✗
Use a common log format for all sources
Why it's wrong here
Common format aids analysis but is not a security practice.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that 'common log format' is a security best practice, but it is actually an operational convenience; the trap is confusing operational efficiency with security controls.
Detailed technical explanation
How to think about this question
Log aggregation (Option B) is a best practice because it centralizes logs from diverse sources (firewalls, servers, endpoints) into a SIEM like Splunk or ELK stack, enabling correlation and anomaly detection. Under the hood, aggregation relies on reliable transport (e.g., syslog over TCP with TLS) and timestamp normalization (NTP-synchronized clocks) to avoid log drift. In a real-world scenario, an attacker who compromises a single server cannot erase their traces if logs are forwarded in real-time to a separate, hardened log collector.
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.
TExam Day Tips
→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 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CS0-003 question in full detail.
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable log encryption in transit and at rest — Option A is correct because encrypting logs in transit (e.g., using TLS/SSL for syslog over TCP 6514) and at rest (e.g., AES-256 encryption on the storage volume) ensures confidentiality and integrity, preventing unauthorized access or tampering. This aligns with security frameworks like NIST SP 800-92 and PCI DSS requirements for protecting log data.
What should I do if I get this CS0-003 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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