CompTIA
CV0-003 · Question #160
CV0-003 Question #160: Real Exam Question with Answer & Explanation
The correct answer is B: Memory reservation. Memory reservation guarantees a minimum amount of physical RAM to a VM on a hypervisor, ensuring critical workloads receive the memory they need without requiring full static allocation.
Operations
Question
An administrator is responsible for managing a private cloud that has servers that require a significant amount of RAM, but does not have the resources to dedicate to the guests. Which of the following features should the administrator configure on the hypervisor?
Options
- AResource pooled memory
- BMemory reservation
- CDynamic memory
- DStatic memory
Explanation
Memory reservation guarantees a minimum amount of physical RAM to a VM on a hypervisor, ensuring critical workloads receive the memory they need without requiring full static allocation.
Common mistakes.
- A. Resource pooled memory aggregates memory across multiple hosts for collective scheduling, but does not provide a per-VM guaranteed minimum allocation for high-priority workloads.
- C. Dynamic memory allows the hypervisor to scale RAM allocations up or down at runtime based on workload demand, but does not guarantee a reserved minimum amount for VMs with critical memory requirements.
- D. Static memory assigns a fixed, unchanging amount of RAM permanently to a VM, which is not feasible when the host lacks the physical capacity to fully dedicate memory to all guests simultaneously.
Concept tested. Hypervisor memory reservation for guaranteed VM allocation
Topics
#memory reservation#dynamic memory#hypervisor memory management#RAM overcommit
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