The correct answer is that the ESXi host does not trust the signing certificate authority of the new vCenter certificate. When you replace the vCenter Server machine SSL certificate, each ESXi host must have the corresponding root CA certificate in its local trust store to validate the vCenter identity; if that root CA is missing, the host rejects the connection and shows vCenter as disconnected, even though other hosts with the CA installed remain connected. On the VMware Certified Professional Data Center Virtualization VCP-DCV exam, this scenario tests your understanding of certificate chain validation versus other common pitfalls like clock skew or SSO misconfiguration—a frequent trap is assuming the issue is time-related, but clock skew would affect all hosts equally. Remember the memory tip: “Trust the chain, not the name”—the host cares about the CA’s signature, not the certificate’s subject or IP match.
VCP-DCV vSphere Security Practice Question
This VCP-DCV practice question tests your understanding of vsphere security. 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 vSphere administrator notices that after replacing the vCenter Server machine SSL certificate, all vCenter services start, but from one ESXi host, the vCenter Server appears as disconnected. Other hosts connect fine. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The ESXi host does not trust the signing certificate authority of the new vCenter certificate.
Option C is correct because if the ESXi host's certificate store does not have the new vCenter certificate's root CA, the verification fails. Option A is incorrect because clock skew usually affects both sides. Option B is incorrect because the vCenter certificate does not need to match the host's IP. Option D is incorrect because replacing the machine SSL certificate does not inherently break SSO unless the STS certificates were also replaced improperly.
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.
✗
The vCenter certificate's Common Name does not match the host's IP address.
Why it's wrong here
Certificate CN mismatch would affect Web access, not the host connection.
✓
The ESXi host does not trust the signing certificate authority of the new vCenter certificate.
Why this is correct
The host needs the root CA certificate in its trusted store to validate the vCenter certificate.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The ESXi host has a different system time than the vCenter Server.
Why it's wrong here
Time skew would likely cause symptoms with multiple hosts, not just one.
✗
The vCenter Server certificate was not imported into the SSO trusted domain.
Why it's wrong here
SSO trust is separate from the machine SSL certificate trust for host connectivity.
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: The ESXi host does not trust the signing certificate authority of the new vCenter certificate. — Option C is correct because if the ESXi host's certificate store does not have the new vCenter certificate's root CA, the verification fails. Option A is incorrect because clock skew usually affects both sides. Option B is incorrect because the vCenter certificate does not need to match the host's IP. Option D is incorrect because replacing the machine SSL certificate does not inherently break SSO unless the STS certificates were also replaced improperly.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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