VCP-DCV Practice Test 35 — 15 Questions

Question 1

A managed service provider manages multiple vSphere environments for various customers. One customer's cluster consists of 6 ESXi hosts (3 pairs of identical hardware) and uses vSAN as shared storage. The cluster runs over 100 VMs with varying workloads. The administrator notices that a specific host (Host-C) is using significantly more storage capacity than its peers, even though it hosts a similar number of VMs. The administrator suspects the vSAN storage policies are not configured optimally. Upon investigation, the administrator finds that all VMs use the default vSAN policy with 'RAID-0 (Mirroring) - No failure tolerance' and 'Object space reservation' set to 100%. Which change would most evenly distribute storage consumption across all hosts?

Accepted Answer

Set 'Number of failures to tolerate' to 1 (mirroring). Option C is correct because changing the failure tolerance to 1 (RAID-1 mirroring) creates two copies of each object, which are placed on different hosts, balancing capacity. Option A would increase capacity usage. Option B would reduce availability. Option D would not change replication.

Answer

Increase 'Object space reservation' to 200%? Explanation: Incorrect, reservation is for thick provisioning, not distribution.

Answer

Change the policy to 'RAID-5/6 (Erasure Coding)' to reduce capacity overhead

Answer

Enable deduplication and compression on the vSAN datastore

Question 2

A medium-sized business manages a vSphere cluster of 8 hosts using vLCM image-based management. The cluster image is based on ESXi 8.0 U2. Two of the hosts have been flagged as non-compliant because they are running an older version of a third-party storage driver than what is included in the cluster image. The administrator wants to update these two hosts to the correct driver without impacting the other hosts. The administrator creates a new image that includes the updated driver, but then realizes that applying the image to the entire cluster would also cause a reboot of all hosts for driver updates, which is not desired. The administrator wants to perform a targeted remediation for only the two affected hosts. What is the most efficient way to accomplish this?

Accepted Answer

Use vLCM's 'Apply To' feature to select only the non-compliant hosts for remediation.. Option B is correct because vLCM allows selecting specific hosts for remediation within a cluster. Option A is wrong because removing and re-adding hosts is disruptive and unnecessary. Option C is wrong because creating a separate cluster is overkill. Option D is wrong because manual updates via ESXCLI would cause drift from desired state.

Answer

Update the driver manually on the two hosts using ESXCLI commands.

Answer

Remove the two hosts from the cluster, apply the image to them individually, then re-add them.

Answer

Create a separate cluster for the two hosts and manage them with a different image.

Question 3

Refer to the exhibit. An administrator notices that the ESXi host is listening on both IPv4 and IPv6 for HTTPS. However, IPv6 traffic is not being forwarded to the host. Which configuration change is most likely needed?

Accepted Answer

Configure a default gateway for the IPv6 stack on the host.

Answer

Disable IPv6 and use only IPv4.

Answer

Remove the IPv4 HTTPS listener to force IPv6.

Answer

Enable IPv6 on the vSphere Distributed Switch.

Question 4

Refer to the exhibit. The ESXi host has three VMkernel interfaces. A vMotion operation fails with a routing error. Which is the most likely cause?

Accepted Answer

The vMotion VMkernel interface is on vmk2, but no route exists for the vMotion destination network.

Answer

The vMotion VMkernel interface uses DHCP.

Answer

The vMotion VMkernel interface is on vmk1, but the default gateway points to vmk0.

Answer

The vMotion VMkernel interface is on vmk0, but the gateway is incorrect.

Question 5

Refer to the exhibit. An administrator cannot resolve the hostname of a DNS server using the ESXi host. What is the most likely cause?

Accepted Answer

The DNS servers are not configured correctly for the domain.

Answer

The search domain is incorrectly set to localdomain.

Answer

The DNS servers are unreachable.

Answer

The ESXi host is not configured to use DNS.

Question 6

Refer to the exhibit. An administrator notices that two uplinks are down on the VDS. Which step should be taken first to restore redundancy?

Accepted Answer

Check the physical switch ports and cables for uplink2 and uplink3.

Answer

Increase the MTU to 9000 to improve performance.

Answer

Disable LACP on the VDS to allow single-uplink operation.

Answer

Remove the down uplinks from the VDS.

Question 7

Refer to the exhibit. An administrator runs vmkfstools -Ph on a VSAN datastore. The output shows VMFS version 3.61 and a capacity of 2.0 TB. Which statement is true about this datastore?

Accepted Answer

The datastore is a vSAN datastore, and the VMFS version shown is for compatibility with VMFS tools.. The exhibit shows a VSAN datastore displayed as VMFS version 3.61. vSAN datastores are presented as VMFS version 3.61 to maintain compatibility with VMFS tools. The actual vSAN object store is not formatted with VMFS, but vmkfstools reports this version for compatibility.

Answer

The datastore is a VMFS datastore that has been upgraded to version 3.61.

Answer

The datastore is a Virtual Volumes datastore, which uses VMFS 3.61.

Answer

The datastore is an NFS datastore mounted as VMFS 3.61.

Question 8

Refer to the exhibit. An administrator increased the MaxQueueDepth parameter for an NFS 4.1 datastore. Which effect does this change have on performance?

Accepted Answer

It increases throughput by allowing more concurrent I/O operations.. Increasing MaxQueueDepth allows more concurrent I/Os to be queued to the NFS server, which can improve throughput for workloads with high I/O concurrency but may increase latency if the NFS server is not capable of handling the increased queue depth.

Answer

It reduces latency by limiting the number of queued I/Os.

Answer

It limits the maximum size of read and write operations.

Answer

It has no effect because NFS 4.1 does not support queue depth adjustments.

Question 9

Refer to the exhibit. An administrator tries to enable vSAN on a host and receives this error. What is the most likely cause?

Accepted Answer

The host has disks but they are not claimed for vSAN or not configured in a disk group.. vSAN requires at least one disk group consisting of one or more capacity disks (and optionally a cache disk). The error indicates that no disk group is present or the disks are not properly claimed.

Answer

The vSAN cluster has insufficient hosts (needs at least 2).

Answer

The host does not have any disks installed.

Answer

The host's disks are all SSD and vSAN requires HDD for capacity tier.

Question 10

Refer to the exhibit. An administrator configures Storage DRS for a datastore cluster. The cluster has datastores with varying performance. Which statement about Storage DRS behavior is correct?

Accepted Answer

Storage DRS will generate recommendations but will not perform migrations automatically.. With manual automation, Storage DRS only generates recommendations and does not automatically migrate VMs. The administrator must review and apply recommendations manually.

Answer

Storage DRS will automatically migrate VMs when utilization exceeds 80%.

Answer

Storage DRS will only balance based on space, ignoring I/O metrics.

Answer

Storage DRS will balance datastores every 8 hours regardless of thresholds.

Question 11

Refer to the exhibit. An administrator attempts to add a host to a vSAN cluster and receives this error. Which step should the administrator take to resolve the issue?

Accepted Answer

Create a new VMkernel adapter (vmk3) on the host's network and enable vSAN traffic.. vSAN requires a dedicated VMkernel interface with the vSAN service enabled. The host has management, vMotion, and provisioning interfaces but none with vSAN enabled. The administrator must create a new VMkernel adapter (e.g., vmk3) on a host network and enable the vSAN service on it.

Answer

Reconfigure the vMotion interface (vmk1) to also carry vSAN traffic.

Answer

Add the host to the cluster without vSAN and enable vSAN later.

Answer

Enable vSAN traffic on the existing vmk0 interface.

Question 12

A large e-commerce company has a vSphere cluster with 16 hosts, each with 2 sockets of 10 cores (HT enabled) and 512 GB RAM. They run a mix of web and database VMs. During the holiday season, some VMs experience high CPU ready time, especially the database VMs. DRS is set to Fully Automated and migration thresholds are at default. The administrator notices that the cluster's CPU utilization averages at 60%, but some hosts are at 90% while others are at 30%. The VMs with high ready time are all on the highly utilized hosts. To resolve this, the administrator considers several options. Which action will most effectively balance CPU load and reduce ready time for the database VMs?

Accepted Answer

Decrease the DRS migration threshold from 3 to 1 to make it more aggressive.. Option A is correct. Decreasing the DRS migration threshold from 3 to 1 makes DRS more aggressive, migrating VMs even for small imbalances, thus spreading load more evenly. Option B is wrong; VM Monitoring is for fault detection, not load balancing. Option C is wrong; increasing the threshold makes DRS less aggressive, worsening the imbalance. Option D is wrong; shares only affect contention within a host, not migration triggers.

Answer

Create a resource pool for database VMs and set a higher CPU share value.

Answer

Increase the DRS migration threshold from 3 to 5 to reduce unnecessary migrations.

Answer

Enable 'VM Monitoring' in the HA cluster settings.

Question 13

A vSphere administrator is deploying VMs on a vSAN cluster with 6 hosts. Each host has two disk groups, each with one cache SSD and four capacity SSDs. The administrator applies a storage policy using RAID 5 erasure coding with Number of failures to tolerate set to 1. After some time, the administrator notices that several VMs are showing compliance status as 'Non-compliant'. Investigating further, the administrator finds that on one host, the cache SSD of the first disk group has failed. The capacity SSDs in that disk group are still functional. The vSAN cluster still has sufficient overall capacity and the health service shows no other issues. What is the most likely reason for the VMs' non-compliance?

Accepted Answer

The failed cache device makes the entire disk group unavailable, so components on that disk group are inaccessible.. A failed cache device renders the entire disk group non-operational; any VM components on that disk group become inaccessible, causing non-compliance. Option A is incorrect because cache capacity is not a compliance factor. Option B is incorrect because loss of a single cache device does not remove a fault domain. Option C is incorrect because the number of hosts with cache devices is still sufficient.

Answer

The failed cache device reduces the overall cache capacity, causing the policy to be violated.

Answer

The vSAN cluster has lost a fault domain due to the failed cache device.

Answer

The RAID 5 policy requires a minimum of 4 hosts with cache devices, and now only 5 are available.

Question 14

You manage a vSphere 7 environment with 20 hosts, each with 2 x 10-core CPUs and 512 GB RAM. The environment runs 300 VMs, including a critical ERP application that uses 8 vCPUs and 64 GB RAM. Recently, the ERP VM has been experiencing periodic performance degradation, especially during month-end processing. The host running the ERP VM shows CPU ready time averaging 8%, with spikes to 20% during the processing. The host has 10 other VMs, each with 2-4 vCPUs. The cluster has DRS enabled with default settings. You suspect CPU contention. Which two actions should you take to mitigate the issue? (Choose two.)

Accepted Answer

Migrate the ERP VM to a host with fewer VMs to reduce CPU over-provisioning.. Option A is correct because migrating the ERP VM to a host with fewer VMs reduces the CPU over-provisioning ratio, directly lowering CPU ready time. With 8% average and 20% spikes, the host's physical CPU cores are oversubscribed; moving the VM to a less contended host alleviates the scheduling pressure without changing VM configuration.

Answer

Enable DPM and set the cluster to aggressive power management.

Answer

Increase the number of vCPUs on the ERP VM to 12 to distribute load.

Answer

Increase the memory allocation of the ERP VM to reduce ballooning.

Question 15

Which TWO actions can be taken to reduce CPU ready time for a virtual machine? (Select TWO.)

Accepted Answer

Decrease the number of vCPUs to match the workload. Option B is correct because reducing the number of vCPUs to match the actual workload demand directly decreases the co-scheduling overhead and contention for physical CPU cores. When a VM has more vCPUs than its workload requires, the ESXi scheduler must wait for all assigned vCPUs to become available simultaneously, which inflates CPU ready time. Right-sizing vCPUs to the workload is a best practice to minimize ready time and improve performance.

Answer

Enable CPU hot-add and hot-plug for the VM

Answer

Migrate the VM to a host with more physical CPU cores

Answer

Add more vCPUs to the VM