The correct answer is to disable TLS 1.0 and enable TLS 1.2 only. This is the most appropriate action because PCI DSS explicitly requires the use of strong cryptography, and TLS 1.0 is considered a deprecated, weak protocol vulnerable to attacks like POODLE and BEAST, which can compromise encrypted data in transit. On the CompTIA SecurityX CAS-004 exam, this scenario tests your understanding of cryptographic remediation and compliance frameworks, often appearing as a drag-and-drop or multiple-choice question where compensating controls or risk acceptance are tempting but incorrect traps. A common mistake is to think that moving the host or applying a compensating control will satisfy the auditor, but PCI DSS v3.2.1 and later require the direct disabling of TLS 1.0 for any system handling cardholder data. Remember the mnemonic “10-12, no excuse” — TLS 1.0 is out, TLS 1.2 is the minimum for compliance.
CAS-004 Governance, Risk and Compliance Practice Question
This CAS-004 practice question tests your understanding of governance, risk and compliance. 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.
Refer to the exhibit. The security team has been asked to remediate the vulnerability before the next PCI DSS audit. Which of the following is the MOST appropriate action?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Disable TLS 1.0 and enable TLS 1.2 only
Disabling TLS 1.0 and enabling TLS 1.2 directly addresses the vulnerability and PCI DSS requirement. Compensating controls may not satisfy the audit; accepting risk is not allowed for high severity; moving the host does not fix the issue.
Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Move the host to a separate VLAN
Why it's wrong here
Does not address the underlying vulnerability.
✓
Disable TLS 1.0 and enable TLS 1.2 only
Why this is correct
Eliminates the vulnerability and achieves compliance.
Related concept
Access ports place end devices into a single VLAN.
✗
Apply a compensating control such as an API gateway
Why it's wrong here
Compensating controls may not meet audit requirements.
✗
Accept the risk because the CVSS score is below 8.0
Why it's wrong here
PCI DSS requires remediation of high-severity findings.
Common exam traps
Common exam trap: an active trunk can still block the VLAN you need
A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.
Detailed technical explanation
How to think about this question
VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.
KKey Concepts to Remember
Access ports place end devices into a single VLAN.
Trunk ports carry multiple VLANs between switches.
Allowed VLAN lists decide which VLANs can cross a trunk.
Native VLAN mismatch can create confusing symptoms.
TExam Day Tips
→Use show vlan brief to verify access VLANs.
→Use show interfaces trunk to verify trunk state and allowed VLANs.
→Do not treat every same-VLAN issue as a routing problem.
Key takeaway
A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Real-world example
How this comes up in practice
A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.
What to study next
Got this wrong? Here's your next step.
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related CAS-004 questions on switching, trunking, and access-port configuration.
Governance, Risk and Compliance — This question tests Governance, Risk and Compliance — Access ports place end devices into a single VLAN..
What is the correct answer to this question?
The correct answer is: Disable TLS 1.0 and enable TLS 1.2 only — Disabling TLS 1.0 and enabling TLS 1.2 directly addresses the vulnerability and PCI DSS requirement. Compensating controls may not satisfy the audit; accepting risk is not allowed for high severity; moving the host does not fix the issue.
What should I do if I get this CAS-004 question wrong?
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related CAS-004 questions on switching, trunking, and access-port configuration.
What is the key concept behind this question?
Access ports place end devices into a single VLAN.
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