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2V0-620 · Question #177

Which two High Availability (HA) Cluster admission control policies can help avoid resource fragmentation? (Choose two.)

The correct answer is A. Define failover capacity by static number of hosts C. Use dedicated failover hosts. HA admission control policies that reserve capacity at the host level prevent resource fragmentation by keeping whole host resources available for failover rather than scattering small reservations across the cluster.

Section 2 – Administer vSphere Resources

Question

Which two High Availability (HA) Cluster admission control policies can help avoid resource fragmentation? (Choose two.)

Options

  • ADefine failover capacity by static number of hosts
  • BDefine failover capacity by reserving a percentage of the cluster resources
  • CUse dedicated failover hosts
  • DUse Virtual Machine Monitoring

How the community answered

(42 responses)
  • A
    76% (32)
  • B
    7% (3)
  • D
    17% (7)

Why each option

HA admission control policies that reserve capacity at the host level prevent resource fragmentation by keeping whole host resources available for failover rather than scattering small reservations across the cluster.

ADefine failover capacity by static number of hostsCorrect

Defining failover capacity by a static number of hosts reserves entire host-level resources for failover, ensuring contiguous blocks of capacity remain intact and preventing fragmentation across the cluster.

BDefine failover capacity by reserving a percentage of the cluster resources

Reserving a percentage of cluster resources distributes reserved capacity in small increments across all hosts, which can cause resource fragmentation rather than preventing it.

CUse dedicated failover hostsCorrect

Dedicated failover hosts set aside specific ESXi hosts exclusively for HA failover, completely eliminating fragmentation since those hosts are never used for normal VM workloads and remain fully available.

DUse Virtual Machine Monitoring

Virtual Machine Monitoring is an HA feature that restarts VMs when heartbeats are lost - it is not an admission control policy and has no effect on resource fragmentation.

Concept tested: vSphere HA admission control policies and resource fragmentation avoidance

Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.avail.doc/GUID-85D9D714-D835-4BEF-8C88-C61A9D9E6A50.html

Topics

#HA admission control#resource fragmentation#failover capacity#cluster policy

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