Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
Exhibit
Server: HR-APP02 Finding: Outdated OpenSSL library with a critical remotely exploitable weakness Vendor status: Fix unavailable for 21 days Exposure: The service must remain online Current access: host firewall allows TCP 443 from any source Monitoring: Monthly vulnerability scans only Available controls: reverse proxy, WAF, IP allow lists, jump host for administration
Based on the exhibit, which temporary control best reduces risk until the patch is released?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Increase scan frequency to daily and leave the service exposed.
More scanning improves visibility, but it does not reduce the attack surface or stop exploitation attempts.
B
Best answer
Place the service behind a reverse proxy or WAF and restrict access with source IP allow lists.
The service must stay online, but the patch is unavailable, so the best temporary measure is to reduce exposure. A reverse proxy or WAF can filter malicious requests, and source IP allow lists shrink the reachable attack surface. Together, those controls act as an effective compensating measure until the vendor fix is released and can be applied.
C
Distractor review
Disable TLS so the traffic can be inspected more easily.
Disabling TLS would weaken confidentiality and integrity without addressing the vulnerable library in a safe way.
D
Distractor review
Move administrative access to the same 443 listener as user traffic.
Combining admin and user access paths increases risk and does not mitigate the vulnerable component.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A laptop is suspected of being used in a malware incident. It is still powered on and connected to Wi-Fi. What should the responder do before shutting it down?
Question 2
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Question 3
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Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
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FAQ
Questions learners often ask
What does this SY0-701 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Place the service behind a reverse proxy or WAF and restrict access with source IP allow lists. — The best temporary control is to place the service behind a reverse proxy or WAF and restrict access with source IP allow lists. The patch is unavailable, but the service must remain online, so the goal is to reduce exposure and filter malicious traffic until remediation is possible. This is a practical compensating control because it lowers the chance of exploitation without shutting down the business service. Why others are wrong: Increasing scan frequency gives better detection, not protection. Disabling TLS creates a new security problem and does not remove the library vulnerability. Moving admin access into the same port path also fails to reduce the attack surface. When a critical flaw cannot be patched immediately, the best short-term strategy is to constrain access and inspect traffic at the edge.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
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