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CV0-002 · Question #201

A company has deployed a four-node cluster in a COLO environment with server configurations listed below. The company wants to ensure there is 50% overhead for failover and redundancy. There are…

The correct answer is B. Ensure dynamic resource allocation is being utilized. To improve resource utilization while maintaining 50% failover overhead and redundancy in a four-node cluster, the cloud administrator should implement dynamic resource allocation.

Operations

Question

A company has deployed a four-node cluster in a COLO environment with server configurations listed below. The company wants to ensure there is 50% overhead for failover and redundancy. There are currently eight VMs running within the cluster with four vCPUs x32GB each. The company wants to better utilize its resources within the cluster without compromising failover and redundancy. Given the information above, which of the following should a cloud administrator do to BEST accommodate failover and redundancy requirements?

Exhibit

CV0-002 question #201 exhibit

Options

  • AEnsure hyperthreading is being utilized with physical server CPUs.
  • BEnsure dynamic resource allocation is being utilized.
  • COvercommit memory, and the systems will allocate resources as required.
  • DSet hard limits for VM resources and turn on hyperthreading.

How the community answered

(18 responses)
  • A
    6% (1)
  • B
    78% (14)
  • C
    6% (1)
  • D
    11% (2)

Why each option

To improve resource utilization while maintaining 50% failover overhead and redundancy in a four-node cluster, the cloud administrator should implement dynamic resource allocation.

AEnsure hyperthreading is being utilized with physical server CPUs.

Hyperthreading improves CPU efficiency by allowing a single physical core to run multiple threads, but it does not provide dynamic resource allocation or ensure failover capacity across a cluster.

BEnsure dynamic resource allocation is being utilized.Correct

Dynamic resource allocation, such as that provided by cluster resource schedulers, automatically balances workloads across hosts and ensures that sufficient capacity is reserved for failover events. This continuously optimizes resource usage within the cluster while respecting redundancy requirements, directly addressing both utilization and failover goals.

COvercommit memory, and the systems will allocate resources as required.
DSet hard limits for VM resources and turn on hyperthreading.

Concept tested: Cluster resource management and dynamic allocation

Source: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-resource-management/GUID-2B8F688E-6C3D-4A2B-896B-79A636A47395.html

Topics

#Resource allocation#Dynamic resource management#Virtualization#Failover/Redundancy

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