Given a Scenario, Troubleshoot an Issue with a VCF Workload Domain Cluster VCAP-VCF-SUPPORT Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A VCF Workload Domain cluster has a host that is in 'Maintenance Mode' due to a planned upgrade. During the upgrade, the host fails to complete the upgrade and is stuck in 'Maintenance Mode' with a 'Not Responding' state in vCenter. The vSAN health check shows 'Data evacuation' is incomplete. What is the safest corrective action to restore the host to service?

   • AReboot the host and then retry the upgrade, ensuring vSAN data evacuation is complete before proceeding.
   • BWait for the vSAN data evacuation to complete, then retry the upgrade.
   • CForce the host out of Maintenance Mode and reboot it to complete the upgrade.
   • DRemove the host from the cluster and re-add it after the upgrade.
   Reveal Solution Discussion Select an answer first
2. 17expert · hard

   A VCF Workload Domain cluster experiences intermittent vSAN performance degradation. The vSAN health checks show no alarms, but the vSAN performance service reports high latency on the 'vSAN DOM Owner' layer for a specific disk group. The ESXi host with that disk group is also showing high CPU ready time. Which root cause is most likely?

   • AThe vSAN disk group is in an 'Absent' state due to a failed SAS controller.
   • BThe disk group's cache tier is saturated due to a misconfigured cache-to-capacity ratio.
   • CThe network between the host and the vSAN witnesses is saturated, causing I/O to be redirected.
   • DThe host is experiencing CPU contention, causing the vSAN DOM owner to delay processing I/O requests.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   In a VMware Cloud Foundation (VCF) Workload Domain cluster, which component is responsible for managing the lifecycle of ESXi hosts and providing cluster-level management capabilities?

   • ANSX-T Manager
   • BvCenter Server
   • CSDDC Manager
   • DvSAN Witness
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A VCF Workload Domain cluster is showing a 'vSAN Cluster Health' warning for 'Network redundancy'. The vSAN network is configured with two uplinks per host, but the health check reports that one uplink is not passing traffic. The vSAN health service also reports 'Multicast traffic is not being forwarded' on the vSAN VMkernel port. What is the most likely root cause?

   • AThe vSAN VMkernel port is configured with the wrong MTU size, causing fragmentation and packet loss.
   • BThe physical switch port for the failing uplink is in a 'blocking' state due to Spanning Tree Protocol (STP) misconfiguration.
   • CThe vSAN health service is misconfigured and is not properly monitoring the network.
   • DThe vSAN cluster has too few hosts to form a quorum, so the health check is reporting false positives.
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A VCF Workload Domain cluster has a vSAN network partition. The cluster has 4 hosts, and the partition has split the hosts into two groups: 3 hosts in one partition and 1 host in the other. The vSAN health check shows 'Partition' alarm. The 1-host partition is still serving VMs. What is the immediate risk, and what should you do first?

   • AThe 1-host partition has quorum because it is still serving VMs; you should wait for the network to recover automatically.
   • BThe 3-host partition has quorum, so the VMs on the 1-host partition are at risk of being powered off by vSAN; you should immediately restore network connectivity between the partitions.
   • CThe vSAN partition is a software issue; you should restart the vSAN cluster services on all hosts to force a reconfiguration.
   • DThe 1-host partition will lose quorum and the VMs will be powered off; you should immediately shut down the VMs on the 1-host partition to prevent data corruption.
   Reveal Solution Discussion Select an answer first