VCP-DCV Practice Test 3 — 30 Questions

Question 1

A vSphere administrator is using vLCM and needs to ensure that all hosts are compliant with the desired image. Which TWO actions are valid when remediating a vLCM cluster?

Accepted Answer

Perform a pre-remediation check to validate the image.. VLCM requires a pre-remediation check to validate that the desired image can be applied successfully to all hosts in the cluster. This check verifies hardware compatibility, driver versions, and firmware prerequisites before any remediation begins, preventing partial or failed updates.

Answer

Remediate without putting hosts into maintenance mode.

Answer

Remediate only hosts that are non-compliant.

Answer

Remediate the cluster even if there are compliance issues.

Question 2

A VM on a vSphere Distributed Switch is experiencing intermittent connectivity drops. The administrator checks the vDS health check and sees no errors. The physical switch logs show no issues. The VM is on a port group with VLAN 200. The administrator runs a ping from the VM to the gateway and notices packet loss. What should the administrator investigate next?

Accepted Answer

Review the NIC teaming failover order and ensure active uplinks are up.. Intermittent connectivity drops on a VM connected to a vDS, despite no errors on the vDS health check or physical switch logs, often point to a NIC teaming misconfiguration. If the active uplinks are not properly set or one uplink is down, the VM traffic may fail over to a standby or unused uplink, causing packet loss. Verifying the teaming failover order and ensuring all active uplinks are operational directly addresses this common cause of intermittent drops.

Answer

Verify the VMkernel port configuration

Answer

Check the VM's firewall settings

Answer

Check DNS resolution for the gateway

Question 3

During a performance review, an administrator notices that a VM with 4 vCPUs and 16 GB memory is experiencing over 10% CPU ready time. The host has two 8-core sockets (hyper-threading enabled) and 256 GB memory. The host runs 15 other VMs with varying CPU loads. What is the most likely cause?

Accepted Answer

Over-provisioning of vCPUs on the host leading to contention.. The host has 16 physical cores (with hyper-threading, 32 logical processors), but running 16 VMs with a total of 4 vCPUs each would require 64 vCPUs. This 2:1 over-provisioning ratio, combined with varying CPU loads, leads to contention for physical CPU resources, manifesting as CPU ready time exceeding 10%. CPU ready time measures the percentage of time a VM is ready to run but waiting for a physical CPU to become available.

Answer

NUMA node mismatch causing cross-node memory access.

Answer

CPU hot-add is enabled on the VM.

Answer

Memory over-provisioning causing ballooning.

Question 4

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 5

A company uses Linked Mode vCenter Servers across two data centers. One of the links fails. What happens to the management capabilities?

Accepted Answer

Each vCenter Server can manage its own inventory, but cross-datacenter tasks fail.. In a Linked Mode configuration, each vCenter Server operates independently but shares licensing, roles, and permissions across the group. When the link fails, each vCenter Server retains full management capability over its own inventory, but cross-datacenter operations—such as moving a VM between clusters managed by different vCenter Servers—fail because the inter-vCenter communication channel is unavailable.

Answer

Both vCenter Servers become unavailable.

Answer

One vCenter Server takes over management of both data centers.

Answer

vSphere HA on both clusters reactivates the link.

Question 6

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.. VLCM's 'Apply To' feature allows the administrator to select specific hosts within a cluster for remediation, applying the desired image only to those hosts without affecting others. This avoids reboot of all hosts and maintains compliance. Option B is incorrect because manually updating drivers via ESXCLI would cause drift from the cluster image, defeating the purpose of image-based management. Option C is incorrect because removing and re-adding hosts is disruptive and unnecessary when vLCM provides targeted remediation. Option D is incorrect because creating a separate cluster is overkill and adds administrative overhead.

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 7

Which TWO are valid methods to monitor vSphere performance metrics?

Accepted Answer

vSphere Performance Charts.. D is correct because vSphere Performance Charts is a built-in feature of the vSphere Client that provides real-time and historical performance metrics for ESXi hosts, VMs, and other objects. It allows administrators to monitor CPU, memory, network, and disk utilization through customizable graphs and reports, directly integrated into the vCenter management interface.

Answer

PowerCLI scripts that retrieve performance data.

Answer

VMware Workstation.

Answer

vCenter Log Insight.

Question 8

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 9

Which TWO capabilities are exclusive to vSphere with Tanzu compared to standard vSphere clusters?

Accepted Answer

Tanzu Kubernetes Grid Service. Options B and C are correct. vSphere with Tanzu provides a native Kubernetes control plane and the Tanzu Kubernetes Grid Service for managing Kubernetes workloads, which are not available in standard vSphere clusters. A (DRS and HA) and D (vMotion) are general vSphere features, not exclusive to vSphere with Tanzu. E (vSAN storage policies) is a vSAN capability, not exclusive to vSphere with Tanzu.

Answer

DRS and HA

Answer

vMotion

Answer

vSAN storage policies

Question 10

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 11

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 12

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 13

An administrator is troubleshooting a VM that is experiencing high latency on its virtual disks. The VM is connected to a vSphere datastore backed by an NFS share. The ESXi host has multiple VMkernel ports configured for NFS traffic. Which configuration change is most likely to improve storage performance?

Accepted Answer

Configure multiple VMkernel ports for NFS and enable port binding with a route based on originating port ID policy.. NFS port binding (also known as NFS multipathing) allows multiple VMkernel ports to be used for NFS traffic, and when combined with a 'route based on originating port ID' load-balancing policy, it enables the ESXi host to distribute NFS I/O across multiple physical NICs and paths. This increases aggregate throughput and reduces latency by avoiding congestion on a single VMkernel port or physical link, which is the most effective change for improving storage performance in this scenario.

Answer

Use a single VMkernel port for NFS and configure it with the highest priority.

Answer

Enable jumbo frames on the NFS VMkernel port and the physical switches.

Answer

Increase the disk queue depth on the VM's virtual SCSI controller.

Question 14

Which TWO factors contribute to increased CPU ready time on a vSphere host?

Accepted Answer

Over-provisioning of vCPUs relative to physical cores.. Over-provisioning vCPUs relative to physical cores leads to contention for CPU resources. When the total number of vCPUs across all powered-on VMs exceeds the number of logical processors (including hyper-threads), the ESXi scheduler must time-share access, resulting in increased ready time as VMs wait for a physical core to become available.

Answer

Memory ballooning due to memory over-commitment.

Answer

Using CPU affinity to pin VMs to specific cores.

Answer

High disk latency on the datastore.

Question 15

Refer to the exhibit. The performance data shows MEMCTL at 5% and SWPOUT at 2%. What does this indicate about the host?

Accepted Answer

The host is over-committed on memory, causing ballooning and swapping.. MEMCTL at 5% indicates the ESXi host's memory balloon driver (vmmemctl) is actively reclaiming memory from virtual machines, while SWPOUT at 2% shows the host is swapping guest memory to disk. Together, these values confirm the host is over-committed on memory, forcing the hypervisor to use both ballooning and swapping to free up memory for VMs.

Answer

The host is experiencing CPU contention.

Answer

The host has network congestion.

Answer

The host has high storage latency.

Question 16

An administrator configures permissions as shown in the exhibit. Users 'user1' and 'user2' are in the 'Limited' role which only allows 'Read' and 'Console interaction' privileges. User1 reports being unable to open a console to a VM running on host2.domain.com. What is the most likely cause?

Accepted Answer

User1 does not have permissions on host2.domain.com. User1 has permissions only on host1, not on host2.domain.com. The 'Limited' role, which includes 'Read' and 'Console interaction' privileges, is assigned at the host level for host1 only, so it does not apply to host2. Therefore, user1 lacks any permissions on host2, preventing console access to VMs running there. Option A is incorrect because the 'Limited' role does include 'Console interaction' privilege as stated. Option C is incorrect because the permissions are applied at the host level (as shown in the exhibit), not at the datacenter level. Option D is incorrect because there is no requirement or indication that user1 needs to be added to the admin group; the issue is simply lack of permissions on the target host.

Answer

The 'Limited' role does not include 'Console interaction' privilege

Answer

The permissions are applied at the datacenter level, not the host level

Answer

User1 should be added to the admin group

Question 17

Refer to the exhibit. An engineer tries to ping the DNS server 10.0.0.1 from the management interface vmk0 but gets 'Network is unreachable'. What is the most likely cause?

Accepted Answer

The vmk0 interface does not have a default gateway configured; the default gateway is on vmk1.. The routing table shows the default gateway is on vmk1 (192.168.20.1), but vmk0 is on a different subnet (192.168.10.0/24). Traffic from vmk0 to 10.0.0.1 is not directly reachable and must go through a gateway. Since there is no route for 10.0.0.0/24 or default route via vmk0, the kernel reports network unreachable. The correct fix is to add a default gateway on vmk0 or a specific route.

Answer

The DNS server 10.0.0.1 is down.

Answer

The MTU of 1500 is too small for DNS traffic.

Answer

The DNS server IP address is misconfigured.

Question 18

A vSphere administrator is tasked with scaling a cluster to support a new workload that requires high network throughput. The existing hosts have 10GbE NICs and are using the default vmnic driver. Which technology can improve network performance without additional hardware?

Accepted Answer

Enable NetQueue and increase the number of RX queues.. NetQueue is a VMware technology that distributes network packet processing across multiple CPU cores by increasing the number of receive (RX) queues on the physical NIC. This reduces CPU bottlenecks and improves throughput for high-bandwidth workloads without requiring additional hardware. The default vmnic driver in vSphere supports NetQueue, making it a software-only performance enhancement.

Answer

Enable SR-IOV on the physical NICs.

Answer

Increase the number of vCPUs for each VM.

Answer

Use vSphere vMotion to balance load.

Question 19

Refer to the exhibit. A virtual machine on the VM Network is experiencing intermittent connectivity. The administrator notices that vmnic0 is saturated. Which action would improve performance without causing a single point of failure?

Accepted Answer

Configure load-based teaming on vSwitch0 for the VM Network portgroup.

Answer

Change the active uplinks for VM Network to vmnic1 only.

Answer

Increase the MTU on vSwitch0 to 9000.

Answer

Move the VM Network to vSwitch1.

Question 20

A vSphere cluster with 3 ESXi hosts (each with 2 sockets, 8 cores per socket, hyperthreading enabled, and 256 GB RAM) runs a set of web server VMs. The cluster is configured with DRS enabled and a migration threshold of 3 (conservative). The administrator notices that one host has consistently high CPU ready time (average 15%) while the other two hosts have ready time below 2%. The host with high ready time has 10 VMs, while the others have 6 each. CPU utilization on the busy host is 80%, while on the other hosts it is 40%. What should the administrator do to improve the situation with minimal disruption?

Accepted Answer

Increase the DRS migration threshold to a more aggressive value (e.g., 4 or 5).. The cluster is unbalanced because DRS is not migrating VMs aggressively enough. Increasing the DRS migration threshold to a more aggressive level will allow DRS to move VMs from the overloaded host to the underutilized hosts. Option D is the best immediate step. Option A would increase overhead and is not best practice. Option B would be effective but requires manual intervention and may not be the simplest. Option C would add capacity but is a longer-term solution.

Answer

Disable Hyper-Threading on all hosts to reduce vCPU contention.

Answer

Manually migrate some VMs from the overloaded host to the other hosts using vMotion.

Answer

Add a fourth host to the cluster.