The answer is to use packet capture on the server’s network segment to analyze traffic, then use EDR to isolate the process. This approach is correct because it allows you to investigate beaconing without disrupting critical application availability—packet capture provides deep visibility into the suspicious outbound traffic at the network layer, while EDR enables granular containment of only the malicious process, leaving the rest of the server online. On the Systems Security Practitioner SSCP exam, this scenario tests your ability to balance incident response with business continuity, a common theme in domain 5 (Security Operations). A frequent trap is choosing to take the server offline or block all traffic, which would violate the availability requirement. Memory tip: “Sniff first, isolate the process, not the host.”
SSCP Incident Response and Recovery Practice Question
This SSCP practice question tests your understanding of incident response and recovery. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Your organization has a mixed environment of Windows and Linux servers. You receive an alert from the EDR that a Linux server is beaconing to a suspicious IP. The server runs a critical application that cannot be taken offline. The security team needs to investigate while maintaining availability. You have access to a jump box with network monitoring tools. Which course of action is most appropriate?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use packet capture on the server's network segment to analyze traffic, then use EDR to isolate the process
Option C is correct because it allows the security team to investigate the beaconing activity without disrupting the critical application's availability. Using packet capture on the server's network segment enables analysis of the outbound traffic to the suspicious IP, while EDR can isolate the specific malicious process without taking the entire server offline. This approach balances the need for containment with the requirement to maintain service continuity.
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.
✗
Immediately disconnect the server from the network to stop beaconing
Why it's wrong here
Disconnecting would halt the critical application, violating availability.
✗
Block the suspicious IP at the firewall and continue monitoring
Why it's wrong here
Blocking the IP prevents further beaconing but does not remove the threat from the server.
✓
Use packet capture on the server's network segment to analyze traffic, then use EDR to isolate the process
Why this is correct
This allows investigation and containment without taking the server offline.
Related concept
Read the scenario before looking for a memorised answer.
✗
Reimage the server from a known good backup
Why it's wrong here
Reimaging would cause significant downtime and may not be necessary if the threat can be contained.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may choose immediate disconnection (Option A) as a reflexive containment action, failing to recognize that the question explicitly requires maintaining availability for a critical application that cannot be taken offline.
Detailed technical explanation
How to think about this question
Packet capture on the network segment (e.g., using tcpdump or Wireshark) allows the security team to inspect the actual payload and protocol details of the beaconing traffic, such as DNS queries, HTTP headers, or TLS handshakes, which can reveal the command-and-control channel's nature. EDR isolation of the process (e.g., using Sysmon or osquery to kill the process tree) is a surgical containment action that stops the malicious activity without affecting other services on the server, preserving uptime for the critical application. In a real-world scenario, this approach is often used in incident response to gather intelligence on the threat actor's infrastructure while maintaining business operations.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Incident Response and Recovery — This question tests Incident Response and Recovery — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use packet capture on the server's network segment to analyze traffic, then use EDR to isolate the process — Option C is correct because it allows the security team to investigate the beaconing activity without disrupting the critical application's availability. Using packet capture on the server's network segment enables analysis of the outbound traffic to the suspicious IP, while EDR can isolate the specific malicious process without taking the entire server offline. This approach balances the need for containment with the requirement to maintain service continuity.
What should I do if I get this SSCP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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