Quick Answer
The answer is 2 GHz, because a CPU reservation guarantee sets a hard floor on the minimum resources a virtual machine will receive, regardless of contention or share values. In VMware vSphere, a reservation is a strict entitlement that the hypervisor must honor, even when other resource pools are competing for CPU cycles. Shares only influence the distribution of any spare capacity above all reservations, so the VM’s 2 GHz guarantee remains intact despite the 2000, 1000, and 500 share values across the pools. On the VCP-DCV exam, this concept tests your understanding of the hierarchy between reservations and shares—a common trap is to mistakenly calculate a proportional share-based allocation and forget that a reservation overrides all share math. The host’s 8 GHz easily satisfies the 2 GHz reservation, so no contention can reduce it. Memory tip: think of a reservation as a “reserved seat” that no one else can take, while shares are just “extra tickets” for leftover capacity.
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.
An administrator is troubleshooting a performance issue where a VM is not receiving the expected CPU resources. The VM is a member of a resource pool with a CPU Shares value of 2000. The host has two other resource pools: one with 1000 shares and another with 500 shares. All resource pools are competing for CPU. The VM's reservation is set to 2 GHz, and the host has 8 GHz available. What is the minimum CPU allocation the VM is guaranteed?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
4 GHz (based on share ratio)
Why wrong: Shares only determine allocation beyond reservations; the VM is guaranteed its reservation first.
2 GHz
The reservation guarantees 2 GHz regardless of other resource pool shares.
8 GHz (all host CPU)
Why wrong: The host has other resource pools that will also get CPU.
0 GHz (no guarantee without reservation)
Why wrong: The reservation guarantees a minimum allocation.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
2 GHz
The VM's reservation of 2 GHz guarantees that the host will reserve at least that amount of CPU capacity for the VM, regardless of contention or share values. Shares only affect the distribution of excess resources beyond reservations, not the guaranteed minimum. Since the host has 8 GHz available, the reservation is fully satisfiable, so the VM is guaranteed 2 GHz.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
4 GHz (based on share ratio)
Why it's wrong here
Shares only determine allocation beyond reservations; the VM is guaranteed its reservation first.
2 GHz
Why this is correct
The reservation guarantees 2 GHz regardless of other resource pool shares.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
8 GHz (all host CPU)
Why it's wrong here
The host has other resource pools that will also get CPU.
0 GHz (no guarantee without reservation)
Why it's wrong here
The reservation guarantees a minimum allocation.
Common exam traps
The trap here is that candidates often confuse shares with reservations, assuming that a higher share value guarantees more CPU, when in fact only a reservation provides a hard guarantee, and shares only affect the distribution of unused capacity.
Detailed technical explanation
In vSphere, CPU reservations are enforced by the ESXi kernel using the 'proportional share' scheduler, which ensures that a VM with a reservation always receives at least that amount of CPU time, even under contention. Shares come into play only after all reservations are met, distributing spare cycles based on the share ratio. This behavior is defined by the VMware CPU scheduler algorithm, which uses a 'min-guarantee' model to prevent starvation.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
vSphere Architecture, Products and Solutions — This question tests vSphere Architecture, Products and Solutions — Read the scenario before looking for a memorised answer..
The correct answer is: 2 GHz — The VM's reservation of 2 GHz guarantees that the host will reserve at least that amount of CPU capacity for the VM, regardless of contention or share values. Shares only affect the distribution of excess resources beyond reservations, not the guaranteed minimum. Since the host has 8 GHz available, the reservation is fully satisfiable, so the VM is guaranteed 2 GHz.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 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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