VCP-DCV Practice Test 5 — 25 Questions

Question 1

A company runs a vSphere 7.0 U3 environment with 200 VMs across 10 ESXi hosts in a single cluster managed by vCenter 7.0. The cluster uses vSAN and vLCM with image-based management. The administrator plans to upgrade the entire environment to vSphere 8.0 U2. The vCenter Server is running on a virtual machine on the same cluster. During the pre-upgrade checks, the vCenter Server upgrade fails with an error stating that the 'vSphere ESXi Agent Manager' (EAM) is not compatible. The administrator checks the EAM service status on vCenter and it appears running. What should the administrator do to successfully perform the upgrade?

Accepted Answer

Perform a clean installation of vCenter 8.0 on a new server and reconnect the existing hosts.. Option B is correct because the EAM incompatibility error indicates that the current vCenter Server's EAM extension is not compatible with the target vSphere 8.0 U2 version. A clean installation of vCenter 8.0 on a new server ensures a fresh, compatible EAM service is deployed, and reconnecting the existing hosts allows the new vCenter to adopt them without the incompatible extension. This bypasses the upgrade path issue where the in-place upgrade cannot resolve EAM version mismatches.

Answer

Manually update each ESXi host to 8.0 using a bootable ISO, then attempt the vCenter upgrade again.

Answer

Use vLCM to upgrade vCenter by exporting and importing the configuration.

Answer

Downgrade to vCenter 7.0 U2 and then upgrade directly to 8.0 U2.

Question 2

A vSphere administrator is tasked with automating the lifecycle management of ESXi hosts in a cluster using vLCM. The cluster currently has 10 hosts with various ESXi versions (7.0, 7.0 U1, 7.0 U2). The administrator wants to bring all hosts to a consistent version 7.0 U3. The administrator creates a new image with ESXi 7.0 U3 and attempts to remediate the cluster. The remediation fails with the error 'Host does not have the required power state to perform remediation'. All hosts are powered on and connected. What is the most likely cause?

Accepted Answer

vSphere DRS is not enabled on the cluster.. Option C is correct because vSphere Lifecycle Manager (vLCM) requires vSphere DRS to be enabled on the cluster to automate the placement of hosts into maintenance mode during remediation. Without DRS, vLCM cannot automatically evacuate VMs from a host, so the remediation fails with the 'Host does not have the required power state' error, even though all hosts are powered on and connected.

Answer

The administrator must manually put all hosts into maintenance mode before remediation.

Answer

Some hosts are in standby mode or powered off.

Answer

There is a stale lock on the vLCM image specification.

Question 3

A company with a small vSphere environment has a single vCenter Server managing three ESXi hosts. The hosts are running ESXi 6.7 and the company wants to upgrade to ESXi 7.0. The vCenter Server is version 6.7 and runs on Windows. The administrator plans to use vSphere Update Manager (VUM) for the upgrade. The administrator attaches a baseline of ESXi 7.0 to the cluster and starts remediation. The remediation fails on all hosts with an error stating that the upgrade cannot be performed from a host that is part of a cluster. What is the likely issue?

Accepted Answer

The vCenter Server must be upgraded to version 7.0 before upgrading the ESXi hosts.. Option C is correct because vSphere Update Manager (VUM) requires the vCenter Server version to be equal to or higher than the ESXi version being applied. Since the vCenter Server is still running version 6.7, it cannot orchestrate an upgrade to ESXi 7.0. The vCenter Server must first be upgraded to version 7.0 before any ESXi 7.0 baseline can be attached and remediated against the hosts.

Answer

The ESXi hosts are part of a cluster; VUM cannot remediate clustered hosts.

Answer

vSphere DRS is not enabled on the cluster.

Answer

The hosts are not in maintenance mode; put them in maintenance mode and retry.

Question 4

A vSphere administrator is scaling a cluster by adding new ESXi hosts and VMs. Which two actions help ensure that performance continues to meet requirements as the environment grows? (Choose two.)

Accepted Answer

Enable DRS with fully automated mode.. DRS with fully automated mode continuously monitors resource utilization across the cluster and automatically migrates VMs to balance CPU and memory loads. This ensures that as new hosts and VMs are added, workloads are redistributed to prevent hotspots and maintain performance requirements.

Answer

Place all VMs on the host with the fastest processors.

Answer

Configure vSphere HA on the cluster.

Answer

Set CPU reservations on all VMs.

Question 5

A company operates a large vSphere environment with 32 ESXi hosts, each featuring 2 sockets, 12 cores per socket (2.6 GHz), and 256 GB RAM. The environment runs a mix of VMs, including several critical database VMs with 16 vCPUs and 128 GB RAM configured. After migrating these database VMs from an older cluster to a new cluster with identical hardware specifications, administrators observe significant performance degradation. vCenter performance charts show high memory ballooning and elevated CPU ready time for these VMs, while overall host utilization remains moderate (CPU 40%, RAM 60%). The new cluster's hosts have two NUMA nodes per socket (each NUMA node spans 6 cores and 64 GB RAM). The older cluster had hosts with a single NUMA node per socket. The administrator confirms that the VMs are running on hosts with sufficient free resources and that no other VMs are contending heavily. What is the most likely cause, and what should the administrator do to resolve the issue?

Accepted Answer

Enable vNUMA for the database VMs to align with the physical NUMA topology.. The performance degradation is caused by a vCPU-to-NUMA topology mismatch. The database VMs have 16 vCPUs, but each NUMA node in the new cluster has only 6 cores. Without vNUMA enabled, the VM scheduler treats the guest as a single large NUMA domain, causing cross-NUMA memory accesses and high memory ballooning. Enabling vNUMA exposes the physical NUMA topology to the guest OS, allowing it to optimize memory locality and reduce overhead.

Answer

Reduce the number of vCPUs for the database VMs from 16 to 8.

Answer

Disable Hyper-Threading on the new cluster hosts.

Answer

Increase the memory reservation for each database VM to prevent ballooning.

Question 6

A company experiences frequent host failures. The cluster has 5 hosts with 128 GB RAM each. The VMs have vCPU and memory reservations ranging from 1 GHz/512 MB to 4 GHz/8 GB. The administrator needs to ensure that if one host fails, the remaining hosts can accommodate all VMs. Which admission control policy is recommended?

Accepted Answer

Use cluster resource percentage - reserve 20% CPU and memory.. Option B is correct because percentage-based admission control with 20% reserve (equivalent to 1 out of 5 hosts) provides headroom for a single host failure while minimizing wasted capacity. For mixed VM sizes, slot-based admission control (Option A) can be inefficient due to varying reservation sizes. Disabling admission control (Option C) risks resource shortages during a failure. Option D reserves 25%, which is more than necessary and wastes resources.

Answer

Define slot sizes based on the largest VM.

Answer

Disable admission control and rely on DRS.

Answer

Use cluster resource percentage - reserve 25% CPU and memory.

Question 7

Which THREE of the following are true about vSphere Storage DRS?

Accepted Answer

Storage DRS can be configured with affinity rules.. Storage DRS can be configured with affinity rules to control which datastores a virtual machine's files should be placed on or kept together, ensuring performance or compliance requirements are met. This is a core feature that allows administrators to define VM-to-datastore affinity and anti-affinity rules within a datastore cluster.

Answer

Storage DRS always automatically migrates VMs.

Answer

Storage DRS works only with VMFS datastores.

Question 8

Which TWO statements are true regarding vMotion requirements?

Accepted Answer

Both source and destination ESXi hosts must be licensed for vMotion.. Option A is correct because vMotion requires both the source and destination ESXi hosts to have a vMotion license. Without this license, the vMotion feature is not enabled on a host, and the migration cannot be initiated. This is a fundamental licensing requirement enforced by vSphere.

Answer

The VM's virtual disks must be stored on shared storage.

Answer

Both hosts must be in the same cluster.

Answer

Both hosts must be in the same vCenter Server instance.

Question 9

Which TWO features are available only in the vSphere Enterprise Plus edition?

Accepted Answer

vSphere Fault Tolerance. vSphere Fault Tolerance (FT) is an Enterprise Plus exclusive feature that provides continuous availability for virtual machines by creating a secondary VM that runs in lockstep with the primary VM, using vLockstep technology to replicate CPU and memory state. This ensures zero data loss and zero downtime in the event of a host failure, but it requires the Enterprise Plus license tier because of the advanced resource management and coordination overhead.

Answer

Storage vMotion

Answer

vSphere HA

Answer

vSphere vMotion

Question 10

An administrator configures DRS on a cluster with two hosts. The administrator wants to ensure that two critical VMs (VM1 and VM2) always run on separate hosts. Which rule type should the administrator create?

Accepted Answer

Separate Virtual Machines. The 'Separate Virtual Machines' rule (option A) is correct because it explicitly instructs DRS to place VM1 and VM2 on different ESXi hosts, ensuring host-level isolation for availability. This rule type enforces an anti-affinity constraint that DRS respects during initial placement and subsequent load-balancing migrations, preventing both VMs from running on the same host simultaneously.

Answer

Virtual Machines to Hosts (Should run)

Answer

Keep Virtual Machines Together

Answer

Virtual Machines to Hosts (Must not run)

Question 11

Which two of the following are characteristics of the vSphere Enhanced vMotion Compatibility (EVC) feature? (Choose two.)

Accepted Answer

It allows vMotion between hosts of different CPU generations within the same cluster. Options B and D are correct. EVC masks CPU features to a baseline level across all hosts in a cluster (D), enabling vMotion between hosts of different CPU generations (B). Option A is incorrect because EVC is configured at the cluster level, not the host level. Option C is incorrect because EVC does not enable memory overcommit; memory overcommit is a separate feature. Option E is incorrect because EVC can be enabled with VMs powered on, though some CPUs may require VMs to be powered off if the baseline changes.

Answer

It is configured at the host level

Answer

It enables memory overcommit by default

Answer

It requires all VMs to be powered off before enabling

Question 12

A company has a vSphere cluster with vSphere HA enabled. During a host failure, virtual machines on the failed host do not restart. The administrator checks the HA agent log and sees the error message: 'HA agent on host <hostname> has no master detected'. Which of the following is the most likely cause?

Accepted Answer

The management network is isolated and HA isolation response is not configured. The error 'HA agent on host <hostname> has no master detected' indicates that the host cannot communicate with the HA master. This is typically caused by management network isolation. If the isolation response is not configured, the host may not take corrective action (e.g., attempt to contact master via datastore heartbeats). Option A is incorrect because datastore heartbeats are a secondary mechanism for detecting isolation, not the primary cause of the error. Option C is incorrect because vCenter Server being stopped does not prevent HA agents from electing a master among themselves. Option D is incorrect because VDS uplink failure detection policy is related to network teaming and failover, not directly to HA agent communication.

Answer

Datastore heartbeats are failing on the failed host

Answer

vCenter Server service is stopped

Answer

The VDS uplink failure detection policy is set to 'Link Status only'

Question 13

An administrator notices that a VM with a critical application is experiencing intermittent network connectivity. The VM is configured with an E1000 vNIC. The ESXi host has been upgraded from 6.5 to 7.0. What is the most likely cause?

Accepted Answer

The VM hardware version needs to be upgraded to version 15.. The E1000 vNIC is a legacy emulated device that relies on the VM's hardware version for proper compatibility with newer ESXi releases. Upgrading the VM hardware version to version 15 (or later) ensures that the virtual hardware is aligned with ESXi 7.0's supported features and drivers, resolving intermittent network connectivity caused by outdated emulation.

Answer

The VM needs to be powered off and back on to reset the vNIC.

Answer

The E1000 vNIC is not supported in ESXi 7.0; VMXNET3 must be used.

Answer

The E1000 driver is incompatible with ESXi 7.0.

Question 14

Which THREE components are part of a vSAN cluster?

Accepted Answer

vSAN datastore. A vSAN datastore is a core component of a vSAN cluster because it is the aggregated, distributed storage object created from the local disks of the ESXi hosts in the cluster. This datastore is what VMs use for storage, and it is built and managed by the vSAN layer, making it an integral part of the cluster's architecture.

Answer

vSAN witness host

Answer

vCenter Server

Question 15

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 16

An administrator attempts to vMotion a powered-on VM from ESXi host A to host B. The vMotion fails with the error: 'the destination host does not have access to the virtual machine's network'. The VM is connected to a standard switch on host A with a VLAN ID 100. Host B is connected to a VDS that also has a portgroup with VLAN ID 100. What is the most likely cause?

Accepted Answer

The VM is using a standard switch while host B uses a VDS. The error 'the destination host does not have access to the virtual machine's network' occurs because vMotion requires network compatibility between source and destination hosts. Since the VM is connected to a standard switch on host A, but host B only has a VDS with a similarly named portgroup, the vMotion fails because standard switches and VDS are separate network constructs and cannot be directly mapped during a vMotion operation. The VLAN ID being identical is irrelevant because the network object types (standard vs. distributed) must match for the migration to succeed.

Answer

The VM is connected to a network that is not present on the destination host

Answer

Host B does not have the correct MTU set

Answer

Host B does not have the correct VLAN configuration

Question 17

A vSphere cluster using vSAN is experiencing high latency for some VMs. The administrator checks the vSAN skyline health and finds that all disk groups are healthy. Which additional step should the administrator take to diagnose the issue?

Accepted Answer

Check the vSAN performance service for object latency breakdown.. The vSAN Performance Service provides granular, real-time and historical metrics for vSAN objects, including latency breakdowns at the VM, disk group, and physical disk levels. Since the skyline health check shows all disk groups as healthy, the next logical step is to use the Performance Service to pinpoint whether the high latency is due to congestion on a specific object, such as a VM virtual disk or a particular disk group component, rather than a hardware failure.

Answer

Verify that the vSAN network is configured with jumbo frames.

Answer

Enable vSAN encryption to improve performance.

Answer

Increase the number of disk groups on each host.

Question 18

Refer to the exhibit. An ESXi 7.0 host is being configured for vSphere Trust Authority. The administrator runs the command shown and gets the output. What does this indicate?

Accepted Answer

The host does not have a TPM 2.0 chip, so vSphere Trust Authority cannot be used.. The output shows 'No TPM device found', which indicates that the ESXi 7.0 host does not have a TPM 2.0 chip installed or it is not detected by the system. vSphere Trust Authority (vTA) requires a TPM 2.0 chip on each ESXi host to establish hardware-based attestation and secure the trusted infrastructure. Without a TPM 2.0, the host cannot participate in vTA, making option C correct.

Answer

The TPM 2.0 device is present but not accessible.

Answer

The command is incorrect; the correct command is 'esxcli system visorfs tpm list'.

Answer

The host has a TPM 2.0 chip but it is not supported by ESXi.

Question 19

An administrator needs to upgrade the ESXi hosts in a cluster to version 7.0 U3. The administrator uses vSphere Lifecycle Manager (vLCM) with a cluster image. After staging the image on one host, the administrator attempts to remediate that host but gets an error that the host is not compliant. Which is the most likely reason?

Accepted Answer

The host is not in maintenance mode. When using vLCM with a cluster image, the host must be in maintenance mode before remediation can proceed. vLCM orchestrates the full software stack update, which requires the host to be evacuated of all running VMs to avoid disruption. The error 'host is not compliant' in this context indicates that the host is not in the required state to begin the remediation process, not that the image itself is invalid.

Answer

The ESXi version difference between the image and the host is too large

Answer

The host does not have the required firmware version

Answer

The vCenter Server service needs to be restarted

Question 20

Place the steps to create a new standard virtual switch in vSphere in order.

Accepted Answer

Select a host, then access networking, then click Add Networking, then choose the connection type, then create and configure the new standard switch.. The correct sequence for creating a new standard virtual switch in vSphere is: select a host, access its networking settings, click Add Networking, choose the connection type (e.g., Virtual Machine), and finally create and configure the new standard switch. This order ensures you follow the wizard's logical steps and avoid errors.

Answer

Select a host, then click Add Networking, then access networking, then choose the connection type, then create and configure the new standard switch.

Answer

Access networking, then select a host, then click Add Networking, then choose the connection type, then create and configure the new standard switch.

Answer

Select a host, then access networking, then choose the connection type, then click Add Networking, then create and configure the new standard switch.