PK0-005 Practice Question: Basics of IT Infrastructure and IT Project Management
A project is deploying a new virtualized server environment. The project manager receives a report that resource pooling is inefficient. Which technology can best improve resource utilization across the virtual hosts?
⚠ Common exam trap
It's easy for candidates to confuse load balancing (which distributes network traffic) with resource pooling optimization, failing to recognize that memory overcommitment is the specific hypervisor feature that directly improves utilization of pooled compute resources.
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
✓
Hypervisor memory overcommitment
Hypervisor memory overcommitment allows a hypervisor to allocate more virtual machine (VM) memory to VMs than the physical RAM available on the host, relying on the fact that VMs rarely use their full allocated memory simultaneously. This directly improves resource utilization by enabling higher VM density per physical host, which is the core inefficiency in resource pooling. Technologies like VMware ESXi's transparent page sharing or KSM (Kernel Same-page Merging) further optimize this by deduplicating identical memory pages.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VLANs
Why it's wrong here
VLANs segregate network traffic but do not affect compute resource utilization.
- ✗
Load balancing
Why it's wrong here
Load balancing distributes network or application traffic, not virtual machine resource pooling.
- ✗
RAID
Why it's wrong here
RAID is a storage technology; it does not improve CPU or memory utilization.
- ✓
Hypervisor memory overcommitment
Why this is correct
Memory overcommitment allows the hypervisor to allocate more memory to VMs than physically available, improving utilization.
Go deeper
Related to this question
About these practice questions
Courseiva writes every PK0-005 question from scratch — 980 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PK0-005 practice question is part of Courseiva's free CompTIA 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 PK0-005 exam.