The answer is to configure the NFS datastore to use vStorage APIs for Array Integration (VAAI). This is correct because VAAI for NFS offloads storage-intensive operations like hardware-assisted locking and full-file cloning directly to the NAS array, which dramatically reduces CPU overhead on the ESXi host and eliminates the performance bottleneck during backup tasks. On the VCP-DCV exam, this scenario tests your understanding that VAAI is not enabled by default on NFS datastores mounted with standard settings; you must explicitly enable it to leverage array-based primitives for improved NFS datastore performance. A common trap is assuming NFS automatically benefits from VAAI, but the key is that VAAI must be configured at the datastore level to offload operations. Memory tip: think of VAAI as the “offload engine” for NFS backups—if it’s not turned on, your host does all the heavy lifting.
VCP-DCV Configure and Manage vSphere Storage Practice Question
This VCP-DCV practice question tests your understanding of configure and manage vsphere storage. 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.
An administrator notices that a VM with a 500 GB virtual disk stored on an NFS datastore is performing poorly during backup operations. The NFS datastore is mounted with default settings. Which change will most likely improve performance?
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
✓
Configure the NFS datastore to use vStorage APIs for Array Integration (VAAI).
Option D is correct because VAAI for NFS offloads storage operations like hardware-assisted locking and full-file/clone operations to the NAS array, reducing CPU overhead on the ESXi host and improving performance during backup-intensive tasks. Since the NFS datastore is mounted with default settings, VAAI is not automatically enabled and must be explicitly configured to leverage array-based primitives.
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.
✗
Move the VM to a cluster with more memory.
Why it's wrong here
Memory does not directly address storage performance.
✗
Enable jumbo frames on the ESXi host's VMkernel adapter for NFS.
Why it's wrong here
Jumbo frames improve network throughput but are not a mount option.
✗
Increase the size of the NFS datastore to 1 TB.
Why it's wrong here
Datastore size does not affect performance.
✓
Configure the NFS datastore to use vStorage APIs for Array Integration (VAAI).
Why this is correct
VAAI offloads storage operations to the array, improving performance.
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume jumbo frames (Option B) are the universal fix for NFS performance issues, but the question specifically points to backup operations, where VAAI offloads are the targeted solution for storage-level bottlenecks.
Detailed technical explanation
How to think about this question
VAAI for NFS (also known as NAS VAAI) uses primitives like 'Full File Clone' and 'Hardware Assisted Locking' to offload file-level operations to the NAS array via NFSv3 or NFSv4.1, reducing ESXi host CPU usage and network round trips. In real-world scenarios, backup software that uses changed block tracking (CBT) or snapshot operations benefits significantly from these offloads, especially on large VMDKs like 500 GB, where software-based locking can cause contention.
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.
Configure and Manage vSphere Storage — This question tests Configure and Manage vSphere Storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure the NFS datastore to use vStorage APIs for Array Integration (VAAI). — Option D is correct because VAAI for NFS offloads storage operations like hardware-assisted locking and full-file/clone operations to the NAS array, reducing CPU overhead on the ESXi host and improving performance during backup-intensive tasks. Since the NFS datastore is mounted with default settings, VAAI is not automatically enabled and must be explicitly configured to leverage array-based primitives.
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.
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.
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 →
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. Refer to the exhibit. An administrator increased the MaxQueueDepth parameter for an NFS 4.1 datastore. Which effect does this change have on performance?
hard
A.It reduces latency by limiting the number of queued I/Os.
B.It limits the maximum size of read and write operations.
✓ C.It increases throughput by allowing more concurrent I/O operations.
D.It has no effect because NFS 4.1 does not support queue depth adjustments.
Why C: Increasing MaxQueueDepth allows more concurrent I/Os to be queued to the NFS server, which can improve throughput for workloads with high I/O concurrency but may increase latency if the NFS server is not capable of handling the increased queue depth.
Last reviewed: Jun 11, 2026
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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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