- A
Leave the appliance unchanged until the vendor releases a patch.
Why wrong: Doing nothing leaves a known, exposed weakness in place and ignores immediate risk reduction opportunities.
- B
Apply compensating controls such as restricting source IPs and increasing monitoring.
When a patch is unavailable, risk should be reduced through compensating controls. Limiting who can reach the VPN and closely monitoring access attempts lowers exposure while maintaining service availability until remediation is possible.
- C
Disable all logging so the appliance performs better under load.
Why wrong: Turning off logs would remove visibility during a high-risk period and make incident detection much harder.
- D
Replace the VPN with a less secure remote access method to avoid the vulnerability.
Why wrong: Switching to a weaker remote access design increases risk and does not address the original exposure in a secure way.
Quick Answer
The answer is to apply compensating controls such as restricting source IPs and increasing monitoring. This is the correct operational response because when a vulnerability cannot be patched immediately—a common scenario with zero-day or vendor-delayed fixes—compensating controls reduce the attack surface by limiting which hosts can reach the vulnerable service, while enhanced monitoring and logging improve the ability to detect and respond to exploitation attempts in real time. On the Security+ SY0-701 exam, this question tests your understanding of risk mitigation strategies when patching is not an option, often appearing in scenarios involving critical infrastructure or internet-facing appliances where availability is paramount. A common trap is choosing to isolate or take the device offline, but the prompt explicitly states the service must remain available, making compensating controls the only viable path. Remember the mnemonic “PATCH: Prioritize, Apply compensating controls, Tighten access, Check logs, Harden until fix arrives.”
SY0-701 Security Operations Practice Question
This SY0-701 practice question tests your understanding of security operations. 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.
A critical vulnerability is discovered on an internet-facing VPN appliance that cannot be patched for six weeks because the vendor has not released a fix. The VPN service must remain available. What is the best operational response?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Apply compensating controls such as restricting source IPs and increasing monitoring.
Option B is correct because when a vulnerability cannot be patched immediately, compensating controls such as restricting source IPs via ACLs and increasing monitoring (e.g., enabling detailed logging and alerting on anomalous traffic) reduce the attack surface and improve detection of exploitation attempts. This approach maintains service availability while mitigating risk until the vendor releases a fix.
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.
- ✗
Leave the appliance unchanged until the vendor releases a patch.
Why it's wrong here
Doing nothing leaves a known, exposed weakness in place and ignores immediate risk reduction opportunities.
- ✓
Apply compensating controls such as restricting source IPs and increasing monitoring.
Why this is correct
When a patch is unavailable, risk should be reduced through compensating controls. Limiting who can reach the VPN and closely monitoring access attempts lowers exposure while maintaining service availability until remediation is possible.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Disable all logging so the appliance performs better under load.
Why it's wrong here
Turning off logs would remove visibility during a high-risk period and make incident detection much harder.
- ✗
Replace the VPN with a less secure remote access method to avoid the vulnerability.
Why it's wrong here
Switching to a weaker remote access design increases risk and does not address the original exposure in a secure way.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think leaving the appliance unchanged (Option A) is acceptable if no patch exists, but the exam expects proactive risk reduction through compensating controls rather than passive acceptance of the vulnerability.
Detailed technical explanation
How to think about this question
Compensating controls for an unpatched VPN appliance might include configuring IP-based allowlists (e.g., restricting source IPs to known trusted ranges via firewall rules), enabling intrusion detection/prevention signatures specific to the vulnerability, and increasing log verbosity (e.g., syslog level 7 for debugging) to capture exploit attempts. In real-world scenarios, organizations often use virtual patching via a web application firewall (WAF) or network-based IPS to block exploit traffic without modifying the vulnerable appliance.
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.
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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: Apply compensating controls such as restricting source IPs and increasing monitoring. — Option B is correct because when a vulnerability cannot be patched immediately, compensating controls such as restricting source IPs via ACLs and increasing monitoring (e.g., enabling detailed logging and alerting on anomalous traffic) reduce the attack surface and improve detection of exploitation attempts. This approach maintains service availability while mitigating risk until the vendor releases a fix.
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: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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