The answer is to increase the DRS migration threshold to a more aggressive setting, such as level 4 or 5. This works because the DRS migration threshold controls how aggressively the system recommends vMotion migrations to balance cluster load; a conservative setting like level 3 requires a significant imbalance before triggering a recommendation, while a higher threshold lowers that bar, prompting DRS to actively redistribute memory load from the overcommitted Host A to the underutilized Hosts B and C without manual intervention. On the VCP-DCV exam, this scenario tests your understanding of DRS automation levels and the trade-off between load balancing and migration frequency—a common trap is assuming that lowering the threshold reduces migrations, when in fact a higher threshold increases them to correct imbalance. Remember the mnemonic: “Higher threshold, higher hustle”—a more aggressive setting means DRS works harder to keep memory balanced.
VCP-DCV vSphere Architecture, Products and Solutions Practice Question
This VCP-DCV practice question tests your understanding of vsphere architecture, products and solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 organization has a vSphere 7.0 environment with three ESXi hosts (Host A, B, C) in a cluster. Each host has 256 GB of RAM and 2 sockets with 16 cores each. The cluster hosts 50 VMs with varying resource requirements. The administrator enabled vSphere DRS and set the migration threshold to 3 (conservative). Recently, the administrator noticed that Host A's memory usage averages 90%, while Host B and C average 50%. The administrator wants to balance the memory load without causing unnecessary vMotion migrations. The VMs on Host A are critical, and the administrator wants to avoid manually migrating them. The cluster has vSphere HA enabled with admission control set to reserve resources for one host failure. The administrator decides to adjust DRS settings. Which course of action should the administrator take to improve memory load balancing while minimizing migrations?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the DRS migration threshold to a more aggressive setting (e.g., level 4 or 5) to encourage more migrations for load balancing.
Option B is correct because increasing the DRS migration threshold to a more aggressive setting (e.g., level 4 or 5) will cause DRS to generate more frequent and stronger recommendations for vMotion migrations, actively balancing the memory load across the cluster. Since Host A's memory usage is at 90% and the other hosts are at 50%, a higher threshold will trigger migrations to relieve the imbalance without manual intervention, while still respecting the conservative starting point (level 3). This aligns with the administrator's goal of improving load balancing without manually migrating critical VMs.
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.
✗
Decrease the DRS migration threshold to level 1 to minimize migrations.
Why it's wrong here
This would make DRS less aggressive, reducing the chance of balancing.
✓
Increase the DRS migration threshold to a more aggressive setting (e.g., level 4 or 5) to encourage more migrations for load balancing.
Why this is correct
A more aggressive threshold will cause DRS to recommend more migrations to balance memory.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create an affinity rule to keep VMs on Host A, as they are critical.
Why it's wrong here
This would prevent DRS from moving VMs, worsening the imbalance.
✗
Disable DRS and manually migrate VMs from Host A to Host B and C during a maintenance window.
Why it's wrong here
Manual migration requires downtime and is not automated.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'conservative' with 'better for stability' and choose to lower the threshold (Option A), not realizing that a higher threshold (more aggressive) is needed to actively correct an existing imbalance, while a lower threshold only reduces unnecessary migrations when the cluster is already balanced.
Detailed technical explanation
How to think about this question
DRS migration thresholds (1–5) control the 'aggressiveness' of load balancing by adjusting the 'migration recommendation priority' that triggers an action; level 3 (default) only generates recommendations for 'good' or 'excellent' improvements, while level 4 or 5 will act on 'fair' or even marginal improvements, leading to more frequent vMotions. Under the hood, DRS uses a 'cluster imbalance metric' based on standard deviation of CPU and memory loads across hosts, and a higher threshold lowers the 'improvement factor' required to initiate a migration. In a real-world scenario with HA admission control reserving for one host failure, the reserved capacity (e.g., 256 GB) reduces the effective cluster memory, making the 90% usage on Host A even more critical and justifying more aggressive DRS settings.
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.
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: Increase the DRS migration threshold to a more aggressive setting (e.g., level 4 or 5) to encourage more migrations for load balancing. — Option B is correct because increasing the DRS migration threshold to a more aggressive setting (e.g., level 4 or 5) will cause DRS to generate more frequent and stronger recommendations for vMotion migrations, actively balancing the memory load across the cluster. Since Host A's memory usage is at 90% and the other hosts are at 50%, a higher threshold will trigger migrations to relieve the imbalance without manual intervention, while still respecting the conservative starting point (level 3). This aligns with the administrator's goal of improving load balancing without manually migrating critical VMs.
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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Question Discussion
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