CHFI Computer Forensics Fundamentals and Process Practice Question
This CHFI practice question tests your understanding of computer forensics fundamentals and process. 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.
A first responder arrives at a scene where a computer is powered on and the user is present. According to standard forensic first responder procedures, what should the responder do FIRST?
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
✓
Photograph the scene and document the system state
Option A is correct because the first priority at a live scene is to preserve volatile evidence and establish a chain of custody. Photographing the scene and documenting the system state (e.g., running processes, open network connections, logged-in users) captures critical volatile data before any action is taken. This aligns with the order of volatility (RFC 3227), which mandates capturing memory and system state before altering the system.
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.
✓
Photograph the scene and document the system state
Why this is correct
Documenting the scene, including the screen contents, connections, and surroundings, is the first critical 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.
✗
Boot the system from a forensic USB to create a memory dump
Why it's wrong here
Booting from an external device may alter the system state; memory capture should be done carefully after documentation.
✗
Immediately disconnect the power cord to preserve the hard drive
Why it's wrong here
Disconnecting power may lose volatile data and is not the first step; documentation comes first.
✗
Ask the user to log out so the system can be powered off safely
Why it's wrong here
User interaction can contaminate evidence; the responder should not ask the user to perform actions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the urgency of preserving the hard drive (Option C) with the forensic priority of capturing volatile data first, leading them to pull the plug prematurely.
Detailed technical explanation
How to think about this question
Under the hood, volatile data resides in RAM and kernel structures (e.g., /proc on Linux, process handles on Windows). RFC 3227 outlines the order of volatility: registers, cache, routing tables, ARP cache, process table, kernel statistics, memory, temporary file systems, disk. A real-world scenario: in a ransomware investigation, photographing the screen showing the ransom note and open network connections can reveal the C2 server IP before the network is disconnected.
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.
Computer Forensics Fundamentals and Process — This question tests Computer Forensics Fundamentals and Process — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Photograph the scene and document the system state — Option A is correct because the first priority at a live scene is to preserve volatile evidence and establish a chain of custody. Photographing the scene and documenting the system state (e.g., running processes, open network connections, logged-in users) captures critical volatile data before any action is taken. This aligns with the order of volatility (RFC 3227), which mandates capturing memory and system state before altering the system.
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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