- A
Immediately wipe the hard drives of all affected workstations and reinstall the operating system.
Why wrong: This is part of the eradication and recovery steps, not the first action. Attempting to wipe drives before containment can allow the ransomware to spread further during the process.
- B
Isolate the affected workstations from the network by disconnecting their network cables and disabling Wi-Fi.
This is the correct first step. Rapid containment (isolation) limits the scope of the incident and prevents the ransomware from encrypting additional systems or exfiltrating data.
- C
Contact local law enforcement to report the ransomware incident and request a forensic investigation.
Why wrong: While law enforcement may be notified later, the immediate priority is to stop the spread. Reporting without containment could allow the attack to continue.
- D
Conduct a full forensic analysis of one affected workstation to determine the ransomware variant and entry vector.
Why wrong: Detailed forensic analysis is important but should be performed after containment to avoid altering evidence and to prevent the attack from expanding during the analysis.
What Is the First Step in Ransomware Containment?
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.
A security analyst at a manufacturing company notices multiple workstations generating high volumes of encrypted outbound traffic and displaying ransom notes. The analyst suspects a ransomware outbreak. According to the incident response process, which of the following should the analyst perform 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.
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 affected workstations from the network by disconnecting their network cables and disabling Wi-Fi.
The first priority in a suspected ransomware outbreak is containment to prevent lateral spread and further encryption. Disconnecting network cables and disabling Wi-Fi immediately isolates the affected workstations from the network, stopping the ransomware from communicating with its command-and-control (C2) server or encrypting additional systems. This aligns with the NIST SP 800-61 incident response lifecycle, where containment precedes eradication and recovery.
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 wipe the hard drives of all affected workstations and reinstall the operating system.
Why it's wrong here
This is part of the eradication and recovery steps, not the first action. Attempting to wipe drives before containment can allow the ransomware to spread further during the process.
When this WOULD be correct
This would be correct if the question stated that the organization has already completed containment, eradication, and evidence preservation, and now needs to restore operations quickly to minimize downtime. For example: 'After isolating and analyzing the ransomware, which step should be taken to restore affected workstations?'
- ✓
Isolate the affected workstations from the network by disconnecting their network cables and disabling Wi-Fi.
Why this is correct
This is the correct first step. Rapid containment (isolation) limits the scope of the incident and prevents the ransomware from encrypting additional systems or exfiltrating data.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Contact local law enforcement to report the ransomware incident and request a forensic investigation.
Why it's wrong here
While law enforcement may be notified later, the immediate priority is to stop the spread. Reporting without containment could allow the attack to continue.
When this WOULD be correct
This would be correct if the question asked: 'After containing the ransomware outbreak and preserving evidence, which step should the analyst perform next?'
- ✗
Conduct a full forensic analysis of one affected workstation to determine the ransomware variant and entry vector.
Why it's wrong here
Detailed forensic analysis is important but should be performed after containment to avoid altering evidence and to prevent the attack from expanding during the analysis.
When this WOULD be correct
This option would be correct if the question stated that the affected workstations have already been isolated and the incident response team is now in the identification or analysis phase, needing to determine the ransomware variant and entry vector to guide eradication and recovery.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The SY0-701 exam frequently reuses these exact scenarios with slightly different constraints.
✓Isolate the affected workstations from the network by disconnecting their network cables and disabling Wi-Fi.Correct answer▾
Why this is correct
This is the correct first step. Rapid containment (isolation) limits the scope of the incident and prevents the ransomware from encrypting additional systems or exfiltrating data.
✗Immediately wipe the hard drives of all affected workstations and reinstall the operating system.Wrong answer — click to see why▾
Why this is wrong here
Wiping drives and reinstalling OS destroys volatile evidence and prevents forensic analysis to determine the ransomware variant and entry vector, which is critical for containment and eradication. The first step in incident response is containment, not eradication or recovery.
★ When this WOULD be the correct answer
This would be correct if the question stated that the organization has already completed containment, eradication, and evidence preservation, and now needs to restore operations quickly to minimize downtime. For example: 'After isolating and analyzing the ransomware, which step should be taken to restore affected workstations?'
Why candidates choose this
Candidates may think immediate eradication stops the ransomware spread, but they overlook the need for containment first and the importance of preserving evidence for investigation and legal action.
✗Contact local law enforcement to report the ransomware incident and request a forensic investigation.Wrong answer — click to see why▾
Why this is wrong here
Contacting law enforcement is not the first step; immediate containment (isolation) is required to prevent further spread of the ransomware across the network.
★ When this WOULD be the correct answer
This would be correct if the question asked: 'After containing the ransomware outbreak and preserving evidence, which step should the analyst perform next?'
Why candidates choose this
Candidates may believe that involving law enforcement early is critical for legal and forensic reasons, but they overlook the priority of containment in incident response.
✗Conduct a full forensic analysis of one affected workstation to determine the ransomware variant and entry vector.Wrong answer — click to see why▾
Why this is wrong here
In the incident response process, the first priority is containment to prevent further spread. Conducting a forensic analysis before containment allows the ransomware to continue encrypting other systems, violating the containment-first principle.
★ When this WOULD be the correct answer
This option would be correct if the question stated that the affected workstations have already been isolated and the incident response team is now in the identification or analysis phase, needing to determine the ransomware variant and entry vector to guide eradication and recovery.
Why candidates choose this
Candidates may think that understanding the ransomware variant is critical to stopping it, but they overlook that containment must occur first to prevent further damage.
Analysis generated from the official SY0-701blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often jump to eradication (wiping drives) or notification (calling law enforcement) first, forgetting that containment is the immediate priority to stop the outbreak from spreading across the network.
Detailed technical explanation
How to think about this question
Ransomware often uses techniques like SMB propagation (e.g., EternalBlue) or PowerShell remoting to move laterally, so network isolation at the switch port or via ACLs is more effective than simply unplugging cables if the workstation has multiple network paths (e.g., Wi-Fi and Ethernet). In a manufacturing environment, OT/IT segmentation may be compromised, so isolating the host also prevents the ransomware from jumping to programmable logic controllers (PLCs) or other industrial control systems. The incident response process (NIST SP 800-61) explicitly prioritizes containment over eradication or notification to minimize impact.
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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
What to study next
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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 affected workstations from the network by disconnecting their network cables and disabling Wi-Fi. — The first priority in a suspected ransomware outbreak is containment to prevent lateral spread and further encryption. Disconnecting network cables and disabling Wi-Fi immediately isolates the affected workstations from the network, stopping the ransomware from communicating with its command-and-control (C2) server or encrypting additional systems. This aligns with the NIST SP 800-61 incident response lifecycle, where containment precedes eradication and recovery.
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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
2 more ways this is tested on SY0-701
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Based on the exhibit, what should the analyst do next to limit the impact of the suspected compromise?
easy- A.Run a full antivirus scan first and wait for the results before taking any other action.
- ✓ B.Isolate FIN-LT-22 from the network to contain the suspected malware activity.
- C.Reboot the laptop to clear the malicious process from memory.
- D.Reset the user's password and close the ticket after confirming they can log in again.
Why B: Option B is correct because isolating FIN-LT-22 from the network immediately stops the suspected malware from communicating with command-and-control servers or spreading laterally to other hosts. This containment step aligns with the NIST incident response framework's containment phase, which prioritizes limiting damage before eradication or recovery. In a suspected compromise, network isolation (e.g., disabling the switch port or using a host-based firewall rule) is the fastest way to cut off malicious traffic without destroying volatile evidence in memory.
Variation 2. A SOC analyst confirms that a critical Linux virtual machine is making outbound connections to a known malicious IP address. The application owner says the VM hosts a revenue system that cannot be powered off without causing a major outage. What is the best containment action?
medium- A.Shut down the VM immediately to stop all malicious activity.
- ✓ B.Isolate the VM at the network layer while keeping it powered on.
- C.Wait for the next maintenance window before taking action.
- D.Reimage the VM from a known-good template immediately.
Why B: Option B is correct because network isolation (e.g., applying a firewall ACL or moving the VM to a quarantine VLAN) stops outbound malicious traffic while keeping the revenue-critical system powered on and available for forensic analysis. This balances security containment with business continuity, as shutting down the VM (Option A) would cause a major outage, and waiting (Option C) would allow continued data exfiltration or lateral movement.
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Last reviewed: Jun 11, 2026
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