VCP-DCV Practice Test 23 — 15 Questions

Question 1

Which TWO conditions must be met for a successful Storage vMotion of a virtual machine with a raw device mapping (RDM) in physical compatibility mode?

Accepted Answer

The source and target datastores support SCSI-3 persistent reservations.. The source and target datastores must support SCSI-3 persistent reservations for Storage vMotion with physical mode RDMs. Option C is correct because the destination datastore must be compatible with physical RDMs (i.e., support RDM in physical compatibility mode). Option B is incorrect because the source and target do not need to be on the same storage array; they can be different arrays. Option D is incorrect because a shared virtual SCSI controller is not a requirement; the VM can use a standard controller. Option E is incorrect because the virtual machine can be powered on during Storage vMotion; it does not need to be powered off.

Answer

The source and target are on the same storage array.

Answer

The virtual machine is using a shared virtual SCSI controller.

Answer

The virtual machine must be powered off.

Question 2

A vSphere cluster has DRS enabled with 'Partially automate' mode. A VM is consistently showing high CPU ready time. The administrator wants to ensure the VM is automatically migrated to a less loaded host. What must be done?

Accepted Answer

Set the VM's DRS automation level to 'Automatic'. In DRS 'Partially automated' mode, VMs are automatically placed on initial power-on, but migrations require manual intervention unless the VM's automation level is set to 'Automatic'. Setting it to 'Automatic' allows DRS to automatically migrate the VM to a less loaded host when high CPU ready time is detected. Option A is incorrect because EVC (Enhanced vMotion Compatibility) ensures CPU compatibility for vMotion but does not affect DRS migration decisions. Option C is incorrect because 'Manual' would require an administrator to approve or manually trigger migrations. Option D is incorrect because HA admission control reserves resources for failover and does not address performance-based migrations.

Answer

Enable EVC mode on the cluster

Answer

Set the VM's DRS automation level to 'Manual'

Answer

Enable HA admission control

Question 3

Which TWO actions are valid for optimizing network performance for vSphere clusters configured with Network I/O Control (NIOC)?

Accepted Answer

Allocate network shares to different traffic types based on business priority.. NIOC shares allocate bandwidth proportionally based on business priority. Option E is correct because network resource pools with reservations guarantee minimum bandwidth for critical traffic types. Option B is incorrect because traffic shaping is per-VM and not directly related to NIOC optimization; enabling it on every VM may cause overhead and is not a recommended NIOC practice. Option C is incorrect because disabling NIOC removes the ability to prioritize traffic, which is counterproductive for optimization. Option D is incorrect because host profiles apply settings but are not a direct action for optimizing network performance; the correct action is to configure NIOC parameters themselves.

Answer

Enable traffic shaping on every virtual machine.

Answer

Disable NIOC on the virtual switch to reduce overhead.

Answer

Use host profiles to apply the same NIOC settings to all hosts in the cluster.

Question 4

Which two actions can be performed to restrict access to the ESXi host Direct Console User Interface (DCUI)? (Choose two.)

Accepted Answer

Enable lockdown mode. Lockdown mode restricts access to the ESXi host's Direct Console User Interface (DCUI) by requiring authentication through vCenter Server and preventing direct local or SSH logins. Enabling lockdown mode (Option B) is a primary method to enforce this restriction, ensuring only authorized users via vCenter can manage the host. Setting DCUI access to 'Strict' (Option E) further tightens security by disabling the DCUI entirely for all users, including those in the exception list, except for root during initial setup.

Answer

Disable the DCUI service

Answer

Add users to the DCUI exception list

Answer

Remove the root user from the local password store

Question 5

During a vLCM health check, an administrator sees that the health status for a cluster is 'Error' with the message: 'Unable to connect to the depot service at https://depot.vmware.com'. The cluster is configured to use the online depot. What is the most likely cause?

Accepted Answer

A firewall is blocking outbound HTTPS access to the internet.. A firewall blocking outbound HTTPS traffic to the internet would prevent the vCenter from connecting to the online depot at https://depot.vmware.com. Option A is incorrect because DNS resolution failure would typically result in a 'Name or service not known' error, not an inability to connect. Option B is incorrect because an expired certificate would cause SSL verification errors, not a connection error. Option D is incorrect because the cluster image URL being invalid would cause an image-related error, not a depot connection error.

Answer

DNS resolution is failing for the vCenter server.

Answer

The vCenter server's certificate is expired.

Answer

The cluster image has an invalid URL.

Question 6

Refer to the exhibit. An administrator is troubleshooting performance issues on a vSphere host. The device is a Fibre Channel disk with a queue depth of 32. The esxtop output shows KAVG=2.5 ms and GAVG=8.2 ms. What is the most likely cause of the high GAVG?

Accepted Answer

The virtual machine's storage stack (e.g., VMkernel or guest OS) is introducing additional latency.. GAVG (guest average latency) is the time taken from the guest OS perspective, including processing in the VM kernel. High GAVG with low KAVG indicates that the latency is introduced at the guest level, possibly due to high CPU usage, inefficient storage drivers, or application I/O patterns. The storage array is responding quickly (KAVG low), so the issue is not the array or the host HBA.

Answer

The device is an SSD, but the system is not using the correct scheduling policy.

Answer

The storage array is experiencing high contention, causing increased latency.

Answer

The ESXi host's HBA queue depth is too low, causing queuing.

Question 7

An administrator is configuring a new iSCSI storage array for a vSphere cluster. The array supports multiple iSCSI targets. What is the recommended best practice for multipathing to ensure high availability and load balancing?

Accepted Answer

Create multiple VMkernel ports for iSCSI, each bound to a separate physical NIC, and configure multiple iSCSI targets.. VMware best practices for iSCSI multipathing require multiple VMkernel ports, each bound to a separate physical NIC, and multiple iSCSI targets to provide both path redundancy and load balancing. This configuration leverages the Pluggable Storage Architecture (PSA) and native multipathing plugins (NMP) to distribute I/O across active paths while maintaining high availability through automatic path failover. Using separate VMkernel ports and NICs ensures that no single point of failure exists in the storage network.

Answer

Use the management VMkernel port for iSCSI traffic to simplify configuration.

Answer

Configure a single physical NIC with multiple VLANs for iSCSI traffic.

Answer

Use a single VMkernel port for iSCSI and assign multiple IP addresses to it.

Question 8

Refer to the exhibit. What is the cause of the non-compliance?

Accepted Answer

The host is running an older ESXi version than desired. The exhibit shows that the desired ESXi version is 8.0.0, but the host is currently running 7.0.0, indicating an older version. This causes non-compliance because the host does not meet the desired ESXi version. Option A is incorrect because firmware version is not mentioned; Option B is incorrect because a scan failure would show a different status; Option C is incorrect because hardware support is not indicated as the issue.

Answer

The host has an outdated firmware version

Answer

The compliance scan failed

Answer

The host's hardware is not supported

Question 9

Refer to the exhibit. What is the cause of the compliance failure?

Accepted Answer

The vLCM depot does not contain the required component.. The compliance failure is due to the vLCM depot not containing the required component for the host. This is indicated by the error message that the component is not available from any configured depot. Option A is incorrect because the vLCM service being down would typically show a different error. Option B is incorrect because a missing driver would be a specific component mismatch, but the error here is about depot availability. Option D is incorrect because an incompatible component would show a different status, while here the issue is that the component is not found in the depot.

Answer

The vLCM service is down.

Answer

The host is missing a required driver.

Answer

The host has an incompatible component.

Question 10

A company uses vSphere 7.0 with two ESXi hosts in a cluster. All virtual machines (VMs) are stored on a VMFS6 datastore backed by a single LUN from a mid-range SAN. The LUN is presented to both hosts and both hosts have identical multipathing configuration. Recently, an administrator noticed that one host shows the datastore as "Inactive" while the other host can access it normally. The administrator verifies that both hosts have connectivity to the SAN, the LUN is visible to both hosts, and the storage array reports the LUN as online. The administrator wants to restore access to the datastore on the affected host without disrupting VMs running on the other host. Which action should the administrator take?

Accepted Answer

Perform a storage rescan on the affected host.. The datastore showing as 'Inactive' on one host while remaining accessible on the other indicates a path failure or a transient storage connectivity issue at the host level, not a permanent problem with the LUN or array. Performing a storage rescan on the affected host forces the ESXi host to re-evaluate all storage paths and re-register the datastore, restoring access without impacting VMs on the other host. This is the safest and least disruptive action because it does not require a reboot, multipathing policy change, or unmounting the datastore.

Answer

Reboot the affected ESXi host.

Answer

Change the multipathing policy on the affected host to Round Robin.

Answer

Unmount the datastore from the affected host and then remount it.

Question 11

Refer to the exhibit. An administrator runs esxtop and sees the above output for a virtual machine. What is the most likely cause of the performance issue?

Accepted Answer

The VM has too many vCPUs for the available physical cores.. The exhibit shows a virtual machine with 8 vCPUs but only 4 physical cores (PCPU) available, as indicated by the %USED and %RUN columns. This leads to CPU ready time (%RDY) being high, which is a classic symptom of CPU overcommitment where the VM's vCPU count exceeds the available physical cores, causing scheduling contention. Option D is correct because the VM has too many vCPUs for the available physical cores, resulting in excessive ready time and degraded performance.

Answer

The VM is running on a host with Hyper-Threading disabled.

Answer

The memory of the VM is overcommitted.

Answer

The host has too many other VMs competing for resources.

Answer

The VM has CPU affinity configured to a single core.

Question 12

An administrator wants to schedule a recurring maintenance window for vSphere Lifecycle Manager image-based remediation of a cluster. Which feature should be used?

Accepted Answer

vCenter Server scheduled tasks.. VCenter Server scheduled tasks can be used to schedule recurring vSphere Lifecycle Manager image-based remediation tasks. Option A is incorrect because vSphere Lifecycle Manager cluster settings do not include scheduling capabilities; they define the desired image and remediation settings but not the schedule. Option B is incorrect because vSphere vMotion is a live migration feature, not a scheduling tool. Option D is incorrect because the vSphere DRS maintenance mode schedule is used to put hosts into maintenance mode at specific times, but it does not trigger vSphere Lifecycle Manager remediation.

Answer

vSphere Lifecycle Manager cluster settings.

Answer

vSphere vMotion.

Answer

vSphere DRS maintenance mode schedule.

Question 13

Refer to the exhibit. An administrator runs the 'vmkfstools -P -v 10' command on a datastore. What is the total capacity of the datastore?

Accepted Answer

3 TB. The vmkfstools -P -v 10 command displays the datastore's extent information. The output shows two extents: one with 1,048,576 blocks and another with 2,097,152 blocks, both using a 1 MB block size. Total blocks = 1,048,576 + 2,097,152 = 3,145,728 blocks. Since each block is 1 MB, total capacity = 3,145,728 MB = 3,072 GB = 3 TB. Therefore, option C (3 TB) is correct. Option A (2.5 TB) and Option B (2 TB) are incorrect; Option D (1 TB) matches only the smaller extent.

Answer

2.5 TB

Answer

2 TB

Answer

1 TB

Question 14

A vCenter Server's SSL certificate has expired, causing all ESXi hosts to display a certificate warning and some management tasks to fail. The administrator needs to restore secure communication with minimal disruption. Which action should the administrator take?

Accepted Answer

Replace the vCenter Server certificate and then reconnect each ESXi host to vCenter.. Replacing the vCenter Server certificate and then reconnecting each ESXi host restores trust and secure communication. Option A is wrong because rebooting the vCenter Server appliance does not regenerate the SSL certificate automatically; the certificate remains expired. Option C is wrong because replacing certificates on each ESXi host individually does not address the expired vCenter certificate and is inefficient. Option D is wrong because vSphere Auto Deploy is used for provisioning hosts, not for replacing vCenter certificates.

Answer

Reboot the vCenter Server appliance to regenerate the certificate automatically.

Answer

Replace the SSL certificate on each ESXi host individually using the vSphere Web Client.

Answer

Use vSphere Auto Deploy to push new certificates to all hosts simultaneously.

Question 15

A network administrator notices that all traffic from two VMs connected to the same standard switch port group is going through the same physical uplink, causing congestion. The teaming policy is set to Route based on originating virtual port. What change should the administrator make to distribute traffic more evenly?

Accepted Answer

Change teaming policy to Route based on IP hash.. IP hash uses source and destination IP addresses to distribute traffic across uplinks, providing better load distribution. Option B is incorrect because simply adding more uplinks without changing the teaming policy does not redistribute traffic; the originating virtual port still ties the VM to a single uplink. Option C is incorrect because LACP is not supported on standard vSwitches; it requires a distributed switch. Option D is incorrect because explicit failover order does not distribute traffic; it only defines active/standby uplinks.

Answer

Increase the number of uplinks to 4.

Answer

Enable LACP on the standard switch.

Answer

Change the load balancing policy to Explicit failover order.