2V0-21.23 Question 39
Single answerAn organization is configuring a VMware ESXi cluster to ensure high availability and efficient resource utilization. The administrator wants to enable a feature that dynamically balances the workload across hosts within the cluster while minimizing resource contention. Which ESXi cluster feature should the administrator configure?
- A
VMware vSphere High Availability (HA)
- B
VMware vSphere Distributed Resource Scheduler (DRS)
- C
VMware vSphere Fault Tolerance (FT)
- D
VMware vSphere Storage DRS
Show answer and explanation
Correct answer: B
Explanation
The correct answer is VMware vSphere Distributed Resource Scheduler (DRS). DRS is a key ESXi cluster feature that ensures efficient utilization of resources by dynamically balancing workloads across the hosts in a cluster. It uses vMotion to migrate virtual machines based on resource demands and policies. Other features like HA and FT serve different purposes, such as availability and fault tolerance, but do not handle dynamic workload balancing across ESXi hosts.
- A. Incorrect.
VMware vSphere High Availability (HA) provides automatic restart of virtual machines on another host in the event of a host failure but does not dynamically balance the workload across hosts.
- B. Correct.
VMware vSphere Distributed Resource Scheduler (DRS) is designed to dynamically balance workloads across hosts in a cluster by migrating virtual machines (using vMotion) to minimize resource contention and optimize performance.
- C. Incorrect.
VMware vSphere Fault Tolerance (FT) provides continuous availability for a virtual machine by creating a live shadow instance on another host but does not handle workload balancing.
- D. Incorrect.
VMware vSphere Storage DRS is used to balance storage workloads across datastores but does not address workload balancing across ESXi hosts.