- A
The ESXi hosts are part of a cluster; VUM cannot remediate clustered hosts.
Why wrong: VUM can remediate clustered hosts; maintenance mode is needed.
- B
vSphere DRS is not enabled on the cluster.
Why wrong: DRS is not required for VUM upgrades.
- C
The vCenter Server must be upgraded to version 7.0 before upgrading the ESXi hosts.
vCenter must be at or above the target ESXi version to manage upgrades.
- D
The hosts are not in maintenance mode; put them in maintenance mode and retry.
Why wrong: The error is not about maintenance mode; the remediation process would handle that.
Question 258 of 521
vCenter Version Compatibility for ESXi Upgrade — Why vCenter Must Be Equal or Higher | VMware Certified Professional Data Center Virtualization Explained
This VCP-DCV practice question tests your understanding of vsphere lifecycle management. 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 company with a small vSphere environment has a single vCenter Server managing three ESXi hosts. The hosts are running ESXi 6.7 and the company wants to upgrade to ESXi 7.0. The vCenter Server is version 6.7 and runs on Windows. The administrator plans to use vSphere Update Manager (VUM) for the upgrade. The administrator attaches a baseline of ESXi 7.0 to the cluster and starts remediation. The remediation fails on all hosts with an error stating that the upgrade cannot be performed from a host that is part of a cluster. What is the likely issue?
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
✓
The vCenter Server must be upgraded to version 7.0 before upgrading the ESXi hosts.
Option C is correct because vSphere Update Manager (VUM) requires the vCenter Server version to be equal to or higher than the ESXi version being applied. Since the vCenter Server is still running version 6.7, it cannot orchestrate an upgrade to ESXi 7.0. The vCenter Server must first be upgraded to version 7.0 before any ESXi 7.0 baseline can be attached and remediated against the hosts.
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 ESXi hosts are part of a cluster; VUM cannot remediate clustered hosts.
Why it's wrong here
VUM can remediate clustered hosts; maintenance mode is needed.
- ✗
vSphere DRS is not enabled on the cluster.
Why it's wrong here
DRS is not required for VUM upgrades.
- ✓
The vCenter Server must be upgraded to version 7.0 before upgrading the ESXi hosts.
Why this is correct
vCenter must be at or above the target ESXi version to manage upgrades.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The hosts are not in maintenance mode; put them in maintenance mode and retry.
Why it's wrong here
The error is not about maintenance mode; the remediation process would handle that.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume VUM can upgrade ESXi hosts independently of the vCenter Server version, but VMware enforces a strict version dependency where the vCenter Server must be at the same or higher version than the ESXi hosts being upgraded.
Detailed technical explanation
How to think about this question
VUM uses a client-server architecture where the Update Manager server runs as a service on the vCenter Server or as a separate appliance. The baseline and remediation workflow checks the vCenter Server version against the target ESXi version; if the vCenter Server is older, it cannot interpret the new host profiles, cluster features, or compatibility checks required for ESXi 7.0. In real-world upgrades, the vCenter Server must always be upgraded first (or migrated to the vCenter Server Appliance) to ensure backward compatibility and proper lifecycle management.
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 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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vSphere Lifecycle Management — study guide chapter
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FAQ
Questions learners often ask
What does this VCP-DCV question test?
vSphere Lifecycle Management — This question tests vSphere Lifecycle Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The vCenter Server must be upgraded to version 7.0 before upgrading the ESXi hosts. — Option C is correct because vSphere Update Manager (VUM) requires the vCenter Server version to be equal to or higher than the ESXi version being applied. Since the vCenter Server is still running version 6.7, it cannot orchestrate an upgrade to ESXi 7.0. The vCenter Server must first be upgraded to version 7.0 before any ESXi 7.0 baseline can be attached and remediated against the hosts.
What should I do if I get this VCP-DCV question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on VCP-DCV
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is planning to upgrade vCenter Server from 7.0 to 8.0 and then upgrade ESXi hosts from 7.0 Update 2 to 8.0. They have a vSAN cluster and use vSphere Lifecycle Manager (vLCM) with a single image. What is a critical prerequisite that must be verified before starting the vCenter Server upgrade?
medium- A.The vSAN cluster must be turned off to avoid data loss.
- B.All ESXi hosts must be updated to the latest ESXi 7.0 patch before upgrading vCenter.
- C.vSphere Update Manager (VUM) must be installed and configured.
- ✓ D.The vCenter Server version must be equal to or higher than the ESXi version being managed.
Why D: Option D is correct because vCenter Server must be at a version equal to or higher than the ESXi hosts it manages. When upgrading from vCenter 7.0 to 8.0, the vCenter upgrade must complete first, as it will then be able to manage the ESXi 7.0 hosts during their subsequent upgrade to 8.0. Attempting to upgrade ESXi hosts before vCenter would violate this compatibility requirement and could cause management communication failures.
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Last reviewed: Jul 4, 2026
This VCP-DCV practice question is part of Courseiva's free VMware 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 VCP-DCV exam.
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