The answer is to document who collected it, when, where, hash values, transfer details, and storage location. This comprehensive documentation is essential because forensic acquisition for legal investigation demands a complete chain of custody, ensuring evidence admissibility by proving it was never tampered with. Cryptographic hashes like SHA-256 verify data integrity, while transfer details—such as the use of a write-blocker—and the final storage location establish a defensible audit trail. On the CompTIA CySA+ CS0-003 exam, this tests your understanding of NIST SP 800-86 and ISO 27037 forensic best practices; a common trap is to omit transfer details or storage location, focusing only on the hash. To remember the six key elements, use the mnemonic “Who, When, Where, Hash, Transfer, Store”—each component is a non-negotiable link in the chain of custody.
CS0-003 Incident Response and Management Practice Question
This CS0-003 practice question tests your understanding of incident response and management. 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.
After a high-priority SOC escalation, a laptop may contain evidence for a legal investigation. What should the responder document during acquisition? During post-incident improvement, which decision is most defensible? which response best matches incident-response practice?
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.
Why wrong: Device description alone is inadequate.
B
Only the ticket priority
Why wrong: Ticket priority is not chain-of-custody documentation.
C
Only the user's job title
Why wrong: A job title does not preserve evidence integrity.
D
Who collected it, when, where, hash values, transfer details, and storage location
Chain of custody records evidence handling and integrity from collection onward. In post-incident improvement, responders need action that reduces risk while preserving the investigation record.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Who collected it, when, where, hash values, transfer details, and storage location
Option D is correct because forensic acquisition requires a complete chain of custody to ensure evidence admissibility in legal proceedings. The responder must document who collected the evidence, the exact date/time, the physical location, cryptographic hash values (e.g., SHA-256) to verify integrity, transfer details (e.g., write-blocker used, destination media), and the final storage location. This aligns with NIST SP 800-86 and ISO 27037 forensic best practices.
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.
✗
Only the laptop colour
Why it's wrong here
Device description alone is inadequate.
✗
Only the ticket priority
Why it's wrong here
Ticket priority is not chain-of-custody documentation.
✗
Only the user's job title
Why it's wrong here
A job title does not preserve evidence integrity.
✓
Who collected it, when, where, hash values, transfer details, and storage location
Why this is correct
Chain of custody records evidence handling and integrity from collection onward. In post-incident improvement, responders need action that reduces risk while preserving the investigation record.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that only minimal metadata (like color or priority) is sufficient, when in fact the full chain-of-custody documentation (who, when, where, hashes, transfer, storage) is mandatory for legally defensible evidence.
Detailed technical explanation
How to think about this question
Forensic acquisition under the CS0-003 framework emphasizes the use of write-blockers (hardware or software) to prevent modification of the source drive, followed by hashing with SHA-256 or SHA-512 to create a digital fingerprint. The chain-of-custody log must include timestamps in UTC, the exact make/model/serial number of the device, and the destination evidence bag or secure server path. In real-world scenarios, failure to document transfer details (e.g., chain-of-custody form signed by each handler) can lead to evidence being excluded under Daubert or Frye standards.
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 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CS0-003 question in full detail.
Incident Response and Management — This question tests Incident Response and Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Who collected it, when, where, hash values, transfer details, and storage location — Option D is correct because forensic acquisition requires a complete chain of custody to ensure evidence admissibility in legal proceedings. The responder must document who collected the evidence, the exact date/time, the physical location, cryptographic hash values (e.g., SHA-256) to verify integrity, transfer details (e.g., write-blocker used, destination media), and the final storage location. This aligns with NIST SP 800-86 and ISO 27037 forensic best practices.
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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