Optimize Cluster Performance Using Monitoring and Scaling Features VCAP-VCF-SUPPORT Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which monitoring data would best confirm a storage performance bottleneck in a VKS cluster?

   • AHigh CPU usage on the VKS nodes
   • BHigh disk latency on the datastore
   • CHigh network packet loss
   • DHigh memory ballooning
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   A VKS cluster is experiencing high CPU ready time. What is the most likely bottleneck?

   • AStorage latency
   • BMemory pressure
   • CCPU contention
   • DNetwork congestion
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   Which component of an alarm definition specifies the condition that triggers the alarm?

   • AAction
   • BTrigger
   • CScope
   • DSeverity
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A vSphere Supervisor cluster is experiencing intermittent latency for workloads running in a VKS namespace. The vSphere administrator reviews the cluster's performance charts and notices that the 'CPU Ready' metric for the supervisor control plane VMs consistently peaks above 15% during business hours, while CPU usage remains below 60%. Memory and storage metrics appear healthy. What is the most likely cause of the latency based on this data?

   • AInsufficient memory reservation on the supervisor cluster's resource pool
   • BCPU overcommitment on the underlying ESXi hosts causing scheduling delays for the control plane VMs
   • CStorage latency on the datastore hosting the VKS node VMs
   • DNetwork packet drops on the virtual switch connecting the supervisor cluster
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A vSphere Supervisor cluster hosts multiple VKS namespaces. One namespace runs a critical production workload that must always have access to a minimum of 8 GHz of CPU, even when other namespaces are under heavy load. The administrator wants to ensure this guarantee without wasting resources when the production workload is idle. What is the best configuration?

   • ASet a CPU reservation of 8 GHz on the production namespace's resource pool
   • BSet both a reservation and a limit of 8 GHz on the production namespace's resource pool
   • CSet a CPU share of 'High' on the production namespace's resource pool
   • DSet a CPU limit of 8 GHz on the production namespace's resource pool
   Reveal Solution Discussion Select an answer first