- A
It is configured at the host level
Why wrong: EVC is a cluster-level setting.
- B
It allows vMotion between hosts of different CPU generations within the same cluster
EVC enables vMotion across different CPU generations by masking features.
- C
It enables memory overcommit by default
Why wrong: EVC does not control memory overcommit.
- D
It masks CPU features to a baseline level across all hosts in the cluster
EVC presents a unified CPU feature set.
- E
It requires all VMs to be powered off before enabling
Why wrong: EVC can be enabled while VMs are powered on.
Question 49 of 521
VCP-DCV vSphere Architecture, Products and Solutions Practice Question
This VCP-DCV practice question tests your understanding of vsphere architecture, products and solutions. 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.
Which two of the following are characteristics of the vSphere Enhanced vMotion Compatibility (EVC) feature? (Choose two.)
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
✓
It allows vMotion between hosts of different CPU generations within the same cluster
Options B and D are correct. EVC masks CPU features to a baseline level across all hosts in a cluster (D), enabling vMotion between hosts of different CPU generations (B). Option A is incorrect because EVC is configured at the cluster level, not the host level. Option C is incorrect because EVC does not enable memory overcommit; memory overcommit is a separate feature. Option E is incorrect because EVC can be enabled with VMs powered on, though some CPUs may require VMs to be powered off if the baseline changes.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It is configured at the host level
Why it's wrong here
EVC is a cluster-level setting.
- ✓
It allows vMotion between hosts of different CPU generations within the same cluster
Why this is correct
EVC enables vMotion across different CPU generations by masking features.
Related concept
CIDR notation defines the prefix length.
- ✗
It enables memory overcommit by default
Why it's wrong here
EVC does not control memory overcommit.
- ✓
It masks CPU features to a baseline level across all hosts in the cluster
Why this is correct
EVC presents a unified CPU feature set.
Related concept
CIDR notation defines the prefix length.
- ✗
It requires all VMs to be powered off before enabling
Why it's wrong here
EVC can be enabled while VMs are powered on.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related VCP-DCV subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Questions learners often ask
What does this VCP-DCV question test?
vSphere Architecture, Products and Solutions — This question tests vSphere Architecture, Products and Solutions — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: It allows vMotion between hosts of different CPU generations within the same cluster — Options B and D are correct. EVC masks CPU features to a baseline level across all hosts in a cluster (D), enabling vMotion between hosts of different CPU generations (B). Option A is incorrect because EVC is configured at the cluster level, not the host level. Option C is incorrect because EVC does not enable memory overcommit; memory overcommit is a separate feature. Option E is incorrect because EVC can be enabled with VMs powered on, though some CPUs may require VMs to be powered off if the baseline changes.
What should I do if I get this VCP-DCV question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related VCP-DCV subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Last reviewed: Jun 24, 2026
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