- A
Isolate the endpoint from the network to stop further communication and lateral movement.
This is the primary containment action because the host shows behavior consistent with active compromise and command execution. Network isolation limits attacker reach, preserves the current state, and reduces the chance of credential theft or lateral movement. EDR-based isolation is fast, reversible, and appropriate before more invasive remediation steps.
- B
Collect a live response package or volatile data from the host before remediation begins.
Collecting live response data preserves valuable evidence such as running processes, network connections, loaded modules, and persistence artifacts. Because the system is still active, those details may disappear after reboot or cleanup. Capturing them early supports root-cause analysis and can help determine whether the attack used additional tools or credentials.
- C
Uninstall the word processor immediately because it is the process that launched PowerShell.
Why wrong: Removing the application does not address the active incident and may destroy useful forensic evidence. The suspicious behavior came from the execution chain, not necessarily a permanently malicious application. The analyst should contain first and gather evidence, then decide on removal or repair based on findings.
- D
Reboot the laptop right away to clear the encoded PowerShell process from memory.
Why wrong: A reboot can wipe volatile evidence, terminate active connections, and make investigation harder. It may also fail to stop persistence mechanisms or scheduled tasks that reactivate the malware after startup. Containment and evidence capture should happen before any reboot unless a specific safety issue demands it.
- E
Whitelist the rare domain temporarily to see whether the connection is business-related.
Why wrong: Whitelisting a suspicious domain during an active incident is risky and could give the attacker continued access. If the domain is malicious, that action would expand exposure instead of reducing it. Analysts should validate the communication through logs, threat intelligence, and containment workflows rather than enabling it.
Quick Answer
The answer is to isolate the endpoint and collect a live response package or volatile data first. This sequence is correct because isolating the host immediately cuts the outbound HTTPS connection to the rare domain, halting potential data exfiltration or command-and-control communication, while collecting volatile data—such as running processes, network connections, and memory contents—preserves critical forensic evidence that would be lost if the system were rebooted or remediated prematurely. On the Security+ SY0-701 exam, this scenario tests your understanding of incident response procedures, specifically the order of operations in EDR alert response actions: containment before evidence gathering is a common trap, but here the volatile data must be captured before isolation can destroy it. A helpful memory tip is “Isolate to stop, collect to know”—always grab the live state before pulling the plug.
SY0-701 Security Operations Practice Question
This SY0-701 practice question tests your understanding of security operations. 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.
EDR flags a word processor that launched encoded PowerShell and then made an outbound HTTPS connection to a rare domain. Which two actions should the analyst take first from the EDR console? 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.
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 from the network to stop further communication and lateral movement.
Option A is correct because isolating the endpoint from the network immediately stops the outbound HTTPS connection to the rare domain, preventing data exfiltration and blocking potential lateral movement. This is a critical first step in containment, as the encoded PowerShell and rare domain strongly suggest a malicious payload or C2 communication.
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 from the network to stop further communication and lateral movement.
Why this is correct
This is the primary containment action because the host shows behavior consistent with active compromise and command execution. Network isolation limits attacker reach, preserves the current state, and reduces the chance of credential theft or lateral movement. EDR-based isolation is fast, reversible, and appropriate before more invasive remediation steps.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Collect a live response package or volatile data from the host before remediation begins.
Why this is correct
Collecting live response data preserves valuable evidence such as running processes, network connections, loaded modules, and persistence artifacts. Because the system is still active, those details may disappear after reboot or cleanup. Capturing them early supports root-cause analysis and can help determine whether the attack used additional tools or credentials.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Uninstall the word processor immediately because it is the process that launched PowerShell.
Why it's wrong here
Removing the application does not address the active incident and may destroy useful forensic evidence. The suspicious behavior came from the execution chain, not necessarily a permanently malicious application. The analyst should contain first and gather evidence, then decide on removal or repair based on findings.
- ✗
Reboot the laptop right away to clear the encoded PowerShell process from memory.
Why it's wrong here
A reboot can wipe volatile evidence, terminate active connections, and make investigation harder. It may also fail to stop persistence mechanisms or scheduled tasks that reactivate the malware after startup. Containment and evidence capture should happen before any reboot unless a specific safety issue demands it.
- ✗
Whitelist the rare domain temporarily to see whether the connection is business-related.
Why it's wrong here
Whitelisting a suspicious domain during an active incident is risky and could give the attacker continued access. If the domain is malicious, that action would expand exposure instead of reducing it. Analysts should validate the communication through logs, threat intelligence, and containment workflows rather than enabling it.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may prioritize remediation (uninstalling or rebooting) over containment and evidence preservation, failing to recognize that isolation and data collection are the mandated first steps in incident response according to NIST SP 800-61.
Detailed technical explanation
How to think about this question
Encoded PowerShell commands often use Base64 encoding to obfuscate malicious scripts, bypassing simple string-based detection. The outbound HTTPS connection to a rare domain is a classic indicator of command-and-control (C2) traffic, where the attacker uses TLS encryption to hide payloads or exfiltrate data. In real-world incidents, isolating the endpoint at the network layer (e.g., via EDR's network containment feature) blocks all non-essential traffic while preserving the host's state for live response collection.
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 from the network to stop further communication and lateral movement. — Option A is correct because isolating the endpoint from the network immediately stops the outbound HTTPS connection to the rare domain, preventing data exfiltration and blocking potential lateral movement. This is a critical first step in containment, as the encoded PowerShell and rare domain strongly suggest a malicious payload or C2 communication.
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". 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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