2V0-620 · Question #190
An administrator is cloning and configuring five new web server virtual machines. What would be the benefit of configuring resource shares for the new VMs?
The correct answer is A. To prioritize access to a resource during contention. Resource shares define relative weighted priority among VMs for a resource, but they only apply when that resource is under contention.
Question
An administrator is cloning and configuring five new web server virtual machines. What would be the benefit of configuring resource shares for the new VMs?
Options
- ATo prioritize access to a resource during contention.
- BTo guarantee access to a resource during contention.
- CTo prioritize access to a resource before contention occurs.
- DTo guarantee access to a resource before contention occurs.
How the community answered
(26 responses)- A88% (23)
- B4% (1)
- C8% (2)
Why each option
Resource shares define relative weighted priority among VMs for a resource, but they only apply when that resource is under contention.
Shares assign a proportional priority weight to VMs so that when a resource such as CPU or memory is over-committed, the hypervisor distributes it according to each VM's share value, favoring higher-share VMs during contention.
Guaranteeing a minimum resource allocation regardless of contention is the function of a reservation, not shares.
Shares have no effect before contention occurs; when resources are plentiful, all VMs receive what they need regardless of share values.
Guaranteeing resources proactively before demand is exceeded is again the role of reservations, not shares.
Concept tested: vSphere resource shares behavior during contention
Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.resmgmt.doc/GUID-7B5DF0D4-8F3B-4C0E-B957-28DC7DEBB3E6.html
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