- A
Disable DRS on the cluster and rely solely on vSphere HA
Why wrong: Disabling DRS loses load balancing benefits and may cause other performance issues.
- B
Create a DRS rule to keep TRADER-01 on a single host and set the host as a preferred host for the VM
Why wrong: This restricts the VM to one host, which can cause resource contention on that host and loss of HA if the host fails.
- C
Set the DRS migration threshold to conservative (level 1) to minimize vmotion events
Reducing migration threshold decreases the number of DRS recommendations and actions, reducing latency spikes.
- D
Reduce the vCPU count of TRADER-01 to 8 to reduce CPU schedul time
Why wrong: Reducing vCPUs might degrade application performance; the latency spikes are due to migrations, not CPU contention.
VCP-DCV vSphere Architecture, Products and Solutions Practice Question
This VCP-DCV practice question tests your understanding of vsphere architecture, products and solutions. 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 financial services company runs a critical trading application on a vSphere 7 cluster with four ESXi hosts. Each host has 512 GB RAM and dual 16-core CPUs. The application is extremely latency-sensitive and runs in a single VM named TRADER-01. The VM currently has 16 vCPUs and 128 GB RAM assigned. The cluster uses vSphere HA and DRS in fully automated mode with aggressive migration threshold. Recently, the application experienced occasional latency spikes. Monitoring shows that these spikes correlate with DRS migrations of other VMs on the same host as TRADER-01. The administrator needs to eliminate these latency spikes without sacrificing application performance. The company has budget constraints and cannot add new hardware. Which action should the administrator take?
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
Set the DRS migration threshold to conservative (level 1) to minimize vmotion events
Option C is correct because setting the DRS migration threshold to conservative (level 1) reduces the frequency of vMotion migrations by requiring a higher imbalance score before DRS recommends or executes a migration. This directly addresses the latency spikes caused by DRS migrations of other VMs on the same host as TRADER-01, as fewer vMotion events will occur, while still allowing DRS to balance the cluster when necessary. The aggressive threshold was triggering migrations too readily, causing resource contention and latency for the latency-sensitive VM.
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.
- ✗
Disable DRS on the cluster and rely solely on vSphere HA
Why it's wrong here
Disabling DRS loses load balancing benefits and may cause other performance issues.
- ✗
Create a DRS rule to keep TRADER-01 on a single host and set the host as a preferred host for the VM
Why it's wrong here
This restricts the VM to one host, which can cause resource contention on that host and loss of HA if the host fails.
- ✓
Set the DRS migration threshold to conservative (level 1) to minimize vmotion events
Why this is correct
Reducing migration threshold decreases the number of DRS recommendations and actions, reducing latency spikes.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Reduce the vCPU count of TRADER-01 to 8 to reduce CPU schedul time
Why it's wrong here
Reducing vCPUs might degrade application performance; the latency spikes are due to migrations, not CPU contention.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume disabling DRS or using a host affinity rule is the best way to isolate a critical VM, but they overlook that DRS migrations of other VMs onto the same host can still cause latency spikes, and the conservative threshold directly reduces the frequency of those migrations without sacrificing overall cluster balance.
Detailed technical explanation
How to think about this question
The DRS migration threshold controls the 'migration aggressiveness' by adjusting the 'MinImbalance' parameter, which determines the minimum cluster imbalance score required to trigger a vMotion. At level 1 (conservative), the threshold is set to 1, meaning DRS will only migrate VMs when the cluster imbalance is very high, significantly reducing the number of vMotion events. vMotion itself consumes CPU and memory resources on both source and destination hosts, and during the iterative pre-copy phase, it can cause CPU contention and increased latency for co-located VMs, especially those with strict latency requirements like trading applications.
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.
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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 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the DRS migration threshold to conservative (level 1) to minimize vmotion events — Option C is correct because setting the DRS migration threshold to conservative (level 1) reduces the frequency of vMotion migrations by requiring a higher imbalance score before DRS recommends or executes a migration. This directly addresses the latency spikes caused by DRS migrations of other VMs on the same host as TRADER-01, as fewer vMotion events will occur, while still allowing DRS to balance the cluster when necessary. The aggressive threshold was triggering migrations too readily, causing resource contention and latency for the latency-sensitive VM.
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.
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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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