The most effective approach is to set the advanced system option 'SSLv3.Enabled' to false and 'TLSv1.2.Enabled' to true within the ESXi host’s advanced settings. This directly controls the host’s own SSL/TLS protocol stack, ensuring that all network services on the ESXi host reject the outdated SSLv3 and require the secure TLS 1.2 protocol. On the VMware Certified Professional Data Center Virtualization VCP-DCV exam, this scenario tests your understanding that ESXi security hardening is managed locally through host-level advanced parameters, not through vCenter or service-level changes. A common trap is assuming that disabling a service or adjusting vCenter’s TLS settings will affect the host, but the host’s protocol enforcement is independent. Memory tip: think “host settings, host protocols” — the advanced system options are the direct lever for disabling SSLv3 and enforcing TLS 1.2 on the ESXi host itself.
VCP-DCV vSphere Security Practice Question
This VCP-DCV practice question tests your understanding of vsphere security. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
During a vulnerability scan, an ESXi host is found to have the SSLv3 protocol enabled. The administrator wants to disable SSLv3 and enforce TLS 1.2 for all network services on the host. Which approach is most effective?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the advanced system option 'SSLv3.Enabled' to false and 'TLSv1.2.Enabled' to true.
Option D is correct. The ESXi host's SSL/TLS configuration can be controlled via the Host Advanced Settings by setting the appropriate option to require TLS 1.2. Option A is incorrect because disabling services does not change the protocol. Option B is incorrect because the vCenter's TLS configuration does not directly affect the host's. Option C is incorrect because there is no direct setting in the DCUI for this.
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.
✗
Update the TLS configuration in vCenter Server and reboot the host.
Why it's wrong here
vCenter's TLS settings are separate from the host's; this would only affect vCenter communications.
✗
Change the host's security settings in the DCUI to require TLS 1.2.
Why it's wrong here
The DCUI does not expose TLS protocol selection; it is configured via advanced settings.
✗
Disable all unnecessary services on the host via the DCUI.
Why it's wrong here
Disabling services does not change the protocol used by remaining services.
✓
Set the advanced system option 'SSLv3.Enabled' to false and 'TLSv1.2.Enabled' to true.
Why this is correct
These advanced options control which SSL/TLS versions are enabled on the ESXi host.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 practitioner preparing for the VCP-DCV exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which VCP-DCV exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
vSphere Security — This question tests vSphere Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the advanced system option 'SSLv3.Enabled' to false and 'TLSv1.2.Enabled' to true. — Option D is correct. The ESXi host's SSL/TLS configuration can be controlled via the Host Advanced Settings by setting the appropriate option to require TLS 1.2. Option A is incorrect because disabling services does not change the protocol. Option B is incorrect because the vCenter's TLS configuration does not directly affect the host's. Option C is incorrect because there is no direct setting in the DCUI for this.
What should I do if I get this VCP-DCV question wrong?
Identify which VCP-DCV exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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