VCP-DCV Practice Test 2 — 25 Questions

Question 1

A VM with a large memory footprint is experiencing high swap rates. The host has free memory but the swap rate is still high. What is the most likely cause?

Accepted Answer

The VM's memory limit is set too low.. A VM memory limit in vSphere caps the amount of host physical memory the VM can consume. When the limit is lower than the guest's working set, the VM balloons and then swaps to its .vswp file even though the host has free memory, because the limit — not host pressure — is driving reclamation. Raising or removing the limit resolves the swap.

Answer

The VM's virtual machine swap file is on a slow datastore.

Answer

The host is using software iSCSI causing high latency.

Answer

The VM's memory reservation is set too high.

Question 2

Place the steps to create a resource pool in a cluster.

Accepted Answer

Right-click cluster, select New Resource Pool, name the resource pool, set CPU and memory resources (shares, reservation, limit), configure expandable reservation (optional), click OK.. Creating a resource pool in a vSphere cluster involves first initiating the creation by right-clicking the cluster and selecting New Resource Pool, then providing a name, followed by configuring CPU and memory resources including shares, reservation, and limit, optionally enabling expandable reservation, and finally confirming by clicking OK. This sequence ensures all required parameters are set before finalizing the resource pool.

Answer

Right-click cluster, select New Resource Pool, set CPU and memory resources (shares, reservation, limit), name the resource pool, configure expandable reservation (optional), click OK.

Answer

Right-click cluster, select New Resource Pool, name the resource pool, set CPU and memory resources (shares, reservation, limit), click OK, configure expandable reservation (optional).

Answer

Right-click cluster, select New Resource Pool, name the resource pool, configure expandable reservation (optional), set CPU and memory resources (shares, reservation, limit), click OK.

Question 3

An administrator is adding an ESXi host to vCenter Server and is prompted to verify the host's certificate thumbprint. The administrator compares it to the output above and it matches. However, the add operation fails with a certificate verification error. What else could be the issue?

Accepted Answer

The certificate common name does not match the hostname. When adding an ESXi host to vCenter Server, the thumbprint verification ensures the host's certificate fingerprint matches what is expected, but it does not validate the certificate's subject attributes. If the certificate's Common Name (CN) does not match the ESXi host's FQDN or IP address used during the add operation, vCenter Server will reject the connection with a certificate verification error, even if the thumbprint is correct. This is because vCenter Server performs hostname verification as part of TLS/SSL certificate validation to prevent man-in-the-middle attacks.

Answer

The vCenter Server's certificate is invalid

Answer

The certificate has expired

Answer

The certificate is not signed by a trusted Certificate Authority

Question 4

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.. Load-based teaming (LBT) on vSwitch0 dynamically balances VM traffic across all active uplinks based on real-time utilization, so vmnic0's load is shared with vmnic1, relieving saturation. It also maintains redundancy because both uplinks remain active; if one fails, the other takes over. This directly addresses the intermittent connectivity caused by vmnic0 saturation without introducing a single point of failure.

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 5

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 6

An administrator is planning a vCenter Server deployment for a large environment with 15 ESXi hosts and 300 VMs. The environment requires high availability for vCenter Server. Which deployment topology should the administrator choose?

Accepted Answer

A VCSA configured with vCenter HA (active-passive).. vCenter HA (active-passive) is the native, supported high-availability solution for VCSA, providing automatic failover between an active, passive, and witness node. For a large environment (15 hosts, 300 VMs) requiring vCenter HA, this topology ensures minimal downtime and is the recommended approach in modern vSphere versions.

Answer

A Windows vCenter Server with a mirrored SQL database.

Answer

A single VCSA with an embedded database.

Answer

A VCSA deployed with an external Platform Services Controller.

Question 7

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 8

An administrator notices that HTTP connections to the ESXi host are timing out frequently. Based on the exhibit, which configuration change would most likely resolve the issue?

Accepted Answer

Increase maxKeepAliveTimeout to a higher value, such as 180. Increasing maxKeepAliveTimeout to a higher value, such as 180, would most likely resolve the issue of HTTP connections timing out frequently. The maxKeepAliveTimeout setting controls how long the ESXi host's reverse proxy (rhttpproxy) keeps an HTTP connection open for keep-alive requests. If it is too low, connections may time out prematurely, causing frequent timeouts. Increasing it allows longer-lived connections.

Answer

Restart the rhttpproxy service

Answer

Set useProxy to true and specify a proxy server

Answer

Set maxKeepAliveTimeout to 0 to disable keepalive

Question 9

Sequence the steps to configure a VM to use a static IP address via vSphere's customization specification.

Accepted Answer

Initiate customization, then select or create a customization specification, then configure the IP settings within the specification, then apply the customization, then power on the VM.. The correct sequence ensures that the VM receives the static IP configuration during the first boot after customization. Initiating the customization opens the wizard, selecting or creating a spec defines the settings, configuring IP within the spec sets the static address, applying saves the configuration, and powering on triggers the OS customization process.

Answer

Initiate customization, then configure IP settings, then select or create a customization specification, then apply, then power on.

Answer

Power on the VM, then initiate customization, then select or create a specification, then configure IP, then apply.

Answer

Initiate customization, then select or create a specification, then apply, then configure IP, then power on.

Question 10

An administrator wants to use vLCM to manage firmware for a cluster of Dell PowerEdge servers. What is required?

Accepted Answer

vCenter Server with vLCM and hardware support manager (HSM). To use vLCM to manage firmware for a cluster of Dell PowerEdge servers, you need vCenter Server with vLCM and a hardware support manager (HSM). The HSM is a vSphere Installation Bundle (VIB) provided by the hardware vendor (in this case, Dell) that integrates with vLCM to provide firmware updates. Dell's HSM is typically delivered as part of the Dell OpenManage integration, but the core requirement is the HSM plugin registered with vLCM.

Answer

Manual download of firmware ISOs

Answer

Dell OpenManage Enterprise

Answer

vSphere Update Manager baseline

Question 11

A large financial institution runs a vSphere 7.0 environment with 100 ESXi hosts and 2,000 VMs. The security team has identified that several VMs are vulnerable to a critical side-channel attack that requires disabling hyperthreading on the ESXi hosts. The administrator needs to implement a solution that minimizes performance impact while ensuring compliance. The environment uses DRS clusters with varying workloads: some VMs are CPU-intensive (financial modeling) and others are memory-bound (database servers). The administrator cannot afford to take hosts offline for maintenance during business hours. The change must be implemented within 48 hours. Which course of action should the administrator take?

Accepted Answer

Place each host in maintenance mode individually, disable hyperthreading in the host BIOS, reboot the host, and then move to the next host. Rebalance VMs after all hosts are updated.. Disabling hyperthreading to mitigate side-channel attacks (e.g., L1TF or MDS) requires a host BIOS change, which necessitates a reboot. The only supported method in vSphere 7.0 is to place each host into maintenance mode, change the BIOS setting, reboot, and then repeat for all hosts. This approach minimizes performance impact by allowing VMs to be migrated via vMotion and avoids simultaneous downtime, meeting the 48-hour requirement without taking all hosts offline during business hours.

Answer

Use a vSphere DRS rule to disable hyperthreading for all VMs in the cluster, avoiding the need to modify host BIOS.

Answer

Delay the change and schedule a maintenance window for the next month when business impact is lower.

Answer

Disable hyperthreading on all hosts simultaneously using a vSphere Cluster feature, then reboot all hosts at once during off-peak hours.

Question 12

After upgrading the physical switches, the LAG (Link Aggregation Group) on a VDS does not come up. The VDS LAG configuration shows LACP active mode. The physical switch ports are configured with LACP active mode as well. What is the most likely cause?

Accepted Answer

The physical switch ports are not in a port-channel. For a VDS LAG in LACP active mode to come up, the physical switch ports must be configured as a port-channel (LAG) with LACP enabled. If the switch ports are left as individual access ports without a port-channel, the ESXi host's LACP PDUs are not matched to a LAG on the switch side, and the LAG never forms. This is the most common cause after a switch upgrade where the port-channel configuration was not reapplied.

Answer

The physical switch uses a different LACP system priority

Answer

The ESXi hosts have different LAG IDs

Answer

The VDS LAG hashing algorithm is set to IP hash

Question 13

Refer to the exhibit. The vSphere administrator observes that vm1 has a %RDY value of 20.5. What is the most likely cause of this high ready time?

Accepted Answer

The host's physical CPUs are overcommitted. %RDY (ready time) measures the percentage of time a VM's virtual CPUs are ready to run but cannot be scheduled onto a physical CPU because the host's pCPUs are busy. A sustained value of 20.5% indicates significant CPU contention, meaning the host's physical cores are overcommitted relative to the total vCPU demand of all powered-on VMs. This is a classic symptom of CPU over-subscription on the ESXi host.

Answer

The VM is experiencing network packet loss

Answer

The VM's virtual disk is causing I/O latency

Answer

Insufficient memory is allocated to vm1

Question 14

Which feature allows a VM to use storage directly from the host's local disks, pooled across a cluster?

Accepted Answer

vSAN. vSAN is VMware's software-defined storage solution that pools local disks (SSDs/HDDs) from ESXi hosts across a cluster into a shared datastore. It allows VMs to use storage directly from host local disks, aggregated and presented as a single distributed datastore. This matches the requirement exactly.

Answer

VMFS

Answer

vFlash

Answer

NFS

Question 15

A vSphere administrator wants to ensure that all ESXi hosts in a cluster boot from a consistent set of software packages, including firmware and drivers. Which vSphere feature should be used to achieve this?

Accepted Answer

vSphere Lifecycle Manager (vLCM) with a single image. vSphere Lifecycle Manager (vLCM) with a single image is the correct choice because it allows the administrator to define a complete software specification—including ESXi version, firmware, drivers, and add-ons—as a single desired state image. When applied to a cluster, vLCM ensures every ESXi host boots from exactly the same set of software packages, eliminating drift and guaranteeing consistency across all hosts.

Answer

vSphere Update Manager (VUM)

Answer

Host Profiles

Answer

Quick Boot

Question 16

An administrator is managing a vSphere cluster with vSphere Lifecycle Manager baselines. Which THREE are valid baseline types? (Choose three.)

Accepted Answer

Patch baseline. In vSphere Lifecycle Manager, baselines are categorized into three valid types: Patch, Upgrade, and Extension. Option A (Patch baseline) is correct because patch baselines contain a collection of patches (VIBs) that can be applied to hosts to update or remediate them without changing the major ESXi version. Option C (Upgrade baseline) is correct because upgrade baselines contain an ESXi image that upgrades hosts to a new major version (for example, from ESXi 7 to ESXi 8). Option E (Extension baseline) is correct because extension baselines contain additional VIBs, such as third-party drivers or custom extensions, that are not part of the standard patch or upgrade process. Option B (Firmware baseline) is not a valid baseline type in vSphere Lifecycle Manager baselines; firmware updates are handled through firmware add-ons in desired-state images, not baselines. Option D (Critical Hosts baseline) is not a valid baseline type; there is no such baseline category in vSphere Lifecycle Manager.

Answer

Firmware baseline

Answer

Critical Hosts baseline

Question 17

An administrator sees that a vLCM remediation task for a host has failed with the error: 'The VIB is incompatible with the host's base image.' The host is using a custom image that includes a third-party driver. What is the most likely cause?

Accepted Answer

The VIB version is not compatible with the ESXi version in the image.. The error 'The VIB is incompatible with the host's base image' specifically indicates that the VIB's compatibility metadata does not match the ESXi base image version. vLCM validates each VIB against the base image's ESXi version and will reject any VIB whose acceptance level or version constraints are not satisfied. Since the host uses a custom image with a third-party driver, the most likely cause is that the driver VIB was built for a different ESXi version than the one in the image.

Answer

The third-party driver should be removed from the image.

Answer

The VIB is missing from the cluster image.

Answer

The administrator should ignore the error and proceed.

Question 18

A vSphere administrator wants to prevent users in a custom role from powering off virtual machines that have Fault Tolerance enabled. Which privilege must be removed from the custom role?

Accepted Answer

VirtualMachine.Interrupt.PowerOff. The privilege VirtualMachine.Interrupt.PowerOff directly controls the ability to power off a virtual machine, including those with Fault Tolerance enabled. Removing this privilege from a custom role prevents users from performing a power-off operation on any VM, including FT-protected ones. Other privileges like Suspend, Reset, or PowerOn do not govern the power-off action, so they are irrelevant to this requirement.

Answer

VirtualMachine.State.Suspend

Answer

VirtualMachine.Interrupt.Reset

Answer

VirtualMachine.Interrupt.PowerOn

Question 19

An administrator configures a VDS with two uplinks and sets the load balancing policy to 'Route based on IP hash'. What additional configuration is required on the physical switches to ensure proper traffic distribution?

Accepted Answer

Configure a static EtherChannel.. 'Route based on IP hash' on a vSphere Distributed Switch requires the physical switch ports to be configured as a static EtherChannel (or equivalent LAG). IP hash uses a hash of source and destination IPs to select an uplink, and the physical switch must treat the uplinks as a single logical link so return traffic flows correctly.

Answer

Use individual ports with no aggregation.

Answer

Set port security to allow multiple MAC addresses.

Answer

Enable Link Aggregation Control Protocol (LACP).

Question 20

An administrator notices that a virtual machine on an NFS datastore is experiencing intermittent performance degradation. The ESXi hosts are connected to the NFS server via a 10 GbE network. The administrator uses esxtop and sees high average latency on the storage device, but the NFS server reports low latency. What is the most likely cause?

Accepted Answer

Network congestion is causing TCP retransmissions. The most likely cause is network congestion causing TCP retransmissions. When the ESXi host sees high average latency on the NFS datastore but the NFS server reports low latency, it indicates that the delay is occurring in the network path between the host and the server, not on the server itself. TCP retransmissions due to network congestion would cause the host to experience higher latency than the server, matching the symptoms.

Answer

Jumbo frames are enabled on the ESXi hosts but not on the NFS server

Answer

The NFS server is performing data deduplication on the datastore

Answer

The NFS datastore is mounted with read-only permissions