CHFI · domain
Incident Response and First Responder Skills
Practise Computer Hacking Forensic Investigator CHFI Incident Response and First Responder Skills practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.
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What this domain covers
What to know about Incident Response and First Responder Skills
Incident Response and First Responder Skills questions test whether you can apply the concept in context, not just recognise a definition.
How the topic appears in realistic exam-style scenarios.
Which detail in the question changes the correct answer.
How to eliminate plausible but wrong options.
How to connect the question back to the wider exam objective.
Watch out for
Common Incident Response and First Responder Skills exam traps
- ▸Answering from memory before reading the full scenario.
- ▸Missing a constraint such as cost, availability, security, scope or command context.
- ▸Choosing a broad answer when the question asks for the most specific fix.
- ▸Ignoring why the wrong options are tempting.
Question index
All Incident Response and First Responder Skills questions (9)
Click any question to see the full explanation, or start a practice session above.
Refer to the exhibit. A first responder runs the netstat command on a compromised Windows workstation. Which of the following conclusions is BEST supported by the output?
Easy2You are responding to a suspected malware infection on a Windows 10 system. The system is still running. Which of the following should you collect FIRST?
Medium3An analyst receives an alert indicating a suspicious process (PID 3342) is making outbound connections on port 443 to an unknown IP. The system is a Windows 10 workstation. Which first responder action is MOST appropriate?
Easy4A first responder arrives at a scene where a computer is powered on and a user is logged in. An incident is suspected. What should the responder do FIRST?
Easy5During incident response, a first responder discovers a compromised system with signs of an active command-and-control (C2) connection. What is the MOST important immediate action to preserve evidence and prevent further damage?
Medium6A first responder is called to investigate a potential insider threat. The suspect's computer is turned off. What is the BEST procedure?
Easy7During the initial response to a suspected data exfiltration, which THREE pieces of volatile data should be collected first? (Choose three.)
Hard8During an incident response, a first responder needs to collect evidence from a Linux server that is still running. The server has sensitive data and cannot be shut down. Which technique is BEST for acquiring a forensic image of the hard disk?
Hard9You are a first responder for a medium-sized enterprise. The Help Desk received multiple reports that users cannot access the company's internal web application (app.example.com) hosted on a Windows Server 2019 VM. The server is also running a MySQL database and an FTP service for file transfers. You remote into the server and find that the web server (IIS) is still running, but the application pool is stopped. The event logs show multiple failed logon attempts from an external IP address (198.51.100.23) for the local administrator account around the time the issues started. The FTP service log shows successful anonymous logins from the same IP minutes before the web app failure. The MySQL log shows a query 'DROP TABLE users;' executed at 03:15 AM. The current time is 04:00 AM. What immediate action should you take?
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Frequently asked questions
- What does the Incident Response and First Responder Skills domain cover on the CHFI exam?
- Incident Response and First Responder Skills questions test whether you can apply the concept in context, not just recognise a definition.
- How many questions are in this domain?
- This page lists all 9 Incident Response and First Responder Skills questions in the CHFI question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
- What is the best way to practise this domain?
- Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
- Can I practise only Incident Response and First Responder Skills questions?
- Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.