VCP-DCV vSphere Performance and Scaling Practice Question
A vSphere cluster has DRS enabled and hosts with unbalanced resource usage. Which DRS feature automatically migrates VMs to balance CPU and memory loads across hosts?
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
✓
Distributed Resource Scheduler (DRS)
DRS (Distributed Resource Scheduler) uses vMotion to migrate VMs based on resource utilization thresholds, balancing workloads across hosts. HA provides failover, EVC ensures compatibility, and SIOC manages storage I/O.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
High Availability (HA)
Why it's wrong here
HA provides automatic restart of VMs after host failure, not load balancing.
- ✓
Distributed Resource Scheduler (DRS)
Why this is correct
DRS continuously monitors and balances resource usage by migrating VMs.
- ✗
Enhanced vMotion Compatibility (EVC)
Why it's wrong here
EVC ensures CPU compatibility for vMotion, not load balancing.
- ✗
Storage I/O Control (SIOC)
Why it's wrong here
SIOC manages storage I/O queues, not CPU or memory balancing.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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