Quick Answer
The answer is to isolate the workstation from the network. This containment action for malicious outbound traffic is the first priority because it immediately cuts off the compromised machine’s ability to communicate with the command-and-control server, preventing data exfiltration and stopping lateral movement to other systems. On the Systems Security Certified Practitioner SSCP exam, this scenario tests your understanding of incident response containment strategies, where the key principle is to stop the threat’s propagation before investigating or remediating. A common trap is choosing to block only the malicious IP, but that fails if the malware switches to a different address, or disabling the user account, which does not halt network-level traffic. Remember the memory tip: “Isolate first, investigate second” — always sever the network connection to contain the breach before worrying about evidence preservation or account changes.
This SSCP practice question tests your understanding of risk identification, monitoring and analysis. 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.
An analyst detects outbound traffic from a workstation to a known malicious IP address. The workstation is a developer machine with local admin rights. Which containment action should be taken 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.
Block the malicious IP on the firewall
Why wrong: Malware may use other IPs; isolation is better.
Isolate the workstation from the network
Stops all malicious outbound traffic and lateral movement.
Shut down the workstation immediately
Why wrong: May destroy volatile evidence.
Disable the user's domain account
Why wrong: Account disable does not stop network traffic.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Isolate the workstation from the network
The first step is to isolate the workstation from the network to prevent further communication with the malicious IP and lateral movement. Option C is correct. Option A (blocking only the IP) is insufficient if the malware uses other IPs. Option B (disabling account) does not stop network traffic. Option D (shutting down) may lose volatile evidence.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Block the malicious IP on the firewall
Why it's wrong here
Malware may use other IPs; isolation is better.
Isolate the workstation from the network
Why this is correct
Stops all malicious outbound traffic and lateral movement.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Shut down the workstation immediately
Why it's wrong here
May destroy volatile evidence.
Disable the user's domain account
Why it's wrong here
Account disable does not stop network traffic.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
Identify which SSCP exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Risk Identification, Monitoring and Analysis — This question tests Risk Identification, Monitoring and Analysis — Read the scenario before looking for a memorised answer..
The correct answer is: Isolate the workstation from the network — The first step is to isolate the workstation from the network to prevent further communication with the malicious IP and lateral movement. Option C is correct. Option A (blocking only the IP) is insufficient if the malware uses other IPs. Option B (disabling account) does not stop network traffic. Option D (shutting down) may lose volatile evidence.
Identify which SSCP exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This SSCP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SSCP exam.
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