CHFI Incident Response and First Responder Skills Practice Question
This CHFI practice question tests your understanding of incident response and first responder skills. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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.
During the initial response to a suspected data breach, a first responder discovers a live system with active network connections. The responder needs to preserve evidence while minimizing alteration. Which of the following is the MOST appropriate first step?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use a memory acquisition tool to capture the contents of RAM.
A is correct because in a live system with active network connections, the most volatile evidence is in RAM (e.g., running processes, network connections, encryption keys). Using a memory acquisition tool (like FTK Imager or WinPmem) captures this volatile data before any other action, preserving evidence that would be lost on shutdown or disconnection. This aligns with the order of volatility (RFC 3227), which prioritizes memory over disk.
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.
✓
Use a memory acquisition tool to capture the contents of RAM.
Why this is correct
Capturing RAM preserves volatile data, which is the most critical first step.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Run a full disk imaging tool to capture the hard drive contents.
Why it's wrong here
Imaging the disk first loses the volatile RAM data.
✗
Disconnect the network cable to isolate the system from the network.
Why it's wrong here
Isolating the network is secondary; RAM data is lost if the system is later powered off.
✗
Immediately shut down the system by pulling the power cord.
Why it's wrong here
Pulling the plug destroys volatile data in RAM.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that disconnecting the network or shutting down is the safest first step, but the trap here is that volatile memory is the most critical evidence and must be captured before any action that could alter or destroy it.
Detailed technical explanation
How to think about this question
Memory acquisition tools like DumpIt or LiME use the Windows API (e.g., MmMapIoSpace) or Linux /dev/mem to read physical memory pages; they must be run with administrative privileges to avoid pagefile corruption. In a real-world breach, capturing RAM can reveal active malware payloads, decrypted data, and network sockets (e.g., TCP connections via netstat output in memory), which are invisible after power loss. The order of volatility (RFC 3227) explicitly lists memory as the first priority, followed by network state and then disk.
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 practitioner preparing for the CHFI exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CHFI question in full detail.
Incident Response and First Responder Skills — This question tests Incident Response and First Responder Skills — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use a memory acquisition tool to capture the contents of RAM. — A is correct because in a live system with active network connections, the most volatile evidence is in RAM (e.g., running processes, network connections, encryption keys). Using a memory acquisition tool (like FTK Imager or WinPmem) captures this volatile data before any other action, preserving evidence that would be lost on shutdown or disconnection. This aligns with the order of volatility (RFC 3227), which prioritizes memory over disk.
What should I do if I get this CHFI 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: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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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