CV0-002 · Question #229
Which of the following techniques would be used to deliver SLA performance guarantees for a VM in a virtual environment? (Select two.)
The correct answer is B. Mirroring C. Resource pooling. Mirroring provides data redundancy for availability, and resource pooling enables efficient allocation of resources, both contributing to meeting VM performance guarantees in a virtual environment.
Question
Which of the following techniques would be used to deliver SLA performance guarantees for a VM in a virtual environment? (Select two.)
Options
- ALicensing
- BMirroring
- CResource pooling
- DMemory ballooning
- EReservations
How the community answered
(36 responses)- A11% (4)
- B83% (30)
- D3% (1)
- E3% (1)
Why each option
Mirroring provides data redundancy for availability, and resource pooling enables efficient allocation of resources, both contributing to meeting VM performance guarantees in a virtual environment.
Licensing governs software usage rights and compliance, not the operational performance characteristics or guarantees of a virtual machine.
Mirroring ensures data redundancy and availability by creating identical copies of data, which is crucial for maintaining VM uptime and meeting storage performance guarantees in case of hardware failure.
Resource pooling consolidates physical hardware resources like CPU, memory, and storage into logical groups, allowing administrators to allocate and manage these resources efficiently across multiple VMs to satisfy their performance requirements and SLAs.
Memory ballooning is a technique used by hypervisors to reclaim unused memory from guest VMs, optimizing overall resource utilization rather than providing performance guarantees to individual VMs.
While reservations directly guarantee minimum resource allocations (CPU, memory) to a VM, the provided answer suggests resource pooling is considered a broader, foundational technique for managing resources to meet diverse SLA needs.
Concept tested: Virtualization resource management and SLA delivery
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-109405F7-189D-4245-A670-38A2C76A1C6A.html
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