- A
Isolate the endpoint using EDR network containment or a quarantine policy.
This stops the suspected malware from communicating or spreading while preserving the disk and volatile evidence for later analysis.
- B
Disable the user account and revoke active sessions or tokens for that identity.
If the attacker obtained credentials, revoking sessions prevents reuse of the account from another device or service.
- C
Reboot the workstation immediately to clear any malicious process from memory.
Why wrong: A reboot can destroy volatile evidence and may allow the attacker to reestablish persistence after startup.
- D
Run a full vulnerability scan before taking any other action.
Why wrong: Scanning is useful later, but it delays containment and does not stop active malicious communication.
- E
Delete the suspicious email from the mailbox to remove the original payload.
Why wrong: Removing the message does not contain the running threat and may destroy useful evidence about the initial vector.
SY0-701 Security Operations Practice Question
This SY0-701 practice question tests your understanding of security operations. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 SOC analyst reviews an EDR alert showing powershell.exe launched with an encoded command, then immediately connected to an unfamiliar IP address and spawned rundll32.exe. The user is still logged in and the machine may still contain evidence needed for investigation. Which two actions should the analyst take first to contain the incident while preserving evidence? Select two.
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.
Clue:
"immediately / without restart"Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Isolate the endpoint using EDR network containment or a quarantine policy.
Option A is correct because isolating the endpoint via EDR network containment or quarantine policy immediately stops the malicious process from communicating with the command-and-control (C2) server at the unfamiliar IP address, preventing data exfiltration and lateral movement. This action preserves the volatile evidence in memory (e.g., the spawned rundll32.exe process) and on disk, allowing forensic analysis without the risk of the attacker destroying evidence remotely.
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.
- ✓
Isolate the endpoint using EDR network containment or a quarantine policy.
Why this is correct
This stops the suspected malware from communicating or spreading while preserving the disk and volatile evidence for later analysis.
Clue confirmation
The clue words "first", "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Disable the user account and revoke active sessions or tokens for that identity.
Why this is correct
If the attacker obtained credentials, revoking sessions prevents reuse of the account from another device or service.
Clue confirmation
The clue words "first", "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Reboot the workstation immediately to clear any malicious process from memory.
Why it's wrong here
A reboot can destroy volatile evidence and may allow the attacker to reestablish persistence after startup.
- ✗
Run a full vulnerability scan before taking any other action.
Why it's wrong here
Scanning is useful later, but it delays containment and does not stop active malicious communication.
- ✗
Delete the suspicious email from the mailbox to remove the original payload.
Why it's wrong here
Removing the message does not contain the running threat and may destroy useful evidence about the initial vector.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose to reboot the workstation (Option C) thinking it will 'clean' the system, but this destroys volatile evidence and does not contain the incident, whereas disabling the user account (Option B) is a valid containment step to prevent further access via that identity.
Detailed technical explanation
How to think about this question
EDR network containment typically works by applying a host-based firewall rule (e.g., using Windows Filtering Platform or iptables) to block all outbound traffic except to a specific management or logging server, effectively isolating the endpoint while keeping it powered on for forensic collection. The encoded PowerShell command often uses Base64 encoding to obfuscate payloads that download and execute a DLL via rundll32.exe, a common technique for fileless malware that lives off the land (LOLBins). In a real-world scenario, the analyst must act quickly because the attacker may use the established C2 channel to issue commands that delete logs or trigger a self-destruct mechanism.
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 security team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
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.
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Isolate the endpoint using EDR network containment or a quarantine policy. — Option A is correct because isolating the endpoint via EDR network containment or quarantine policy immediately stops the malicious process from communicating with the command-and-control (C2) server at the unfamiliar IP address, preventing data exfiltration and lateral movement. This action preserves the volatile evidence in memory (e.g., the spawned rundll32.exe process) and on disk, allowing forensic analysis without the risk of the attacker destroying evidence remotely.
What should I do if I get this SY0-701 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", "immediately / without restart". 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.
About these practice questions
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Last reviewed: Jun 11, 2026
This SY0-701 practice question is part of Courseiva's free CompTIA 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 SY0-701 exam.
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