VCP-DCV Practice Test 18 — 15 Questions

Question 1

Refer to the exhibit. What is the most likely reason the second path is in standby state?

Accepted Answer

The storage array reports that path as non-optimized.. In an ALUA (Asymmetric Logical Unit Access) environment, a storage array designates each path as either optimized (active) or non-optimized (standby). When the array reports a path as non-optimized, ESXi places that path in a standby state and routes I/O through the optimized path. This is the expected behavior for arrays that support ALUA and is the most likely reason the second path shows as standby.

Answer

The host has not successfully authenticated to the storage on that path.

Answer

The path is not properly zoned to the storage.

Answer

The multipathing policy is set to Fixed (VMW_PSP_FIXED).

Question 2

Refer to the exhibit. The administrator notices rx_dropped packets on vmnic0 but no errors. What is the most likely cause of the dropped packets?

Accepted Answer

The physical NIC's receive ring buffer is overflowing due to high traffic.. rx_dropped packets on a vmnic indicate that the physical NIC's receive ring buffer is overflowing, typically due to a burst of traffic that exceeds the buffer's capacity. This causes packets to be dropped before they can be processed by the network stack. The absence of errors suggests the drops are due to buffer exhaustion, not corruption or misconfiguration.

Answer

There is a VLAN mismatch causing packets to be dropped.

Answer

The virtual switch port has insufficient buffer space.

Answer

The physical switch is dropping packets due to congestion.

Question 3

Which TWO of the following are functions of a vSphere Distributed Switch that are not available in a vSphere Standard Switch? (Select exactly two.)

Accepted Answer

Port mirroring (Distributed Port Mirroring).. Option A (Port mirroring / Distributed Port Mirroring) is correct because the vSphere Distributed Switch provides a centralized, dvSwitch-wide port mirroring feature configured at the distributed switch or distributed port group level, whereas a vSphere Standard Switch has no native port mirroring capability and requires third-party tools or workarounds. Option C (Network I/O Control / NIOC) is correct because NIOC, which uses shares, reservations, and limits to prioritize and manage bandwidth across traffic types (e.g., vMotion, iSCSI, NFS, VM traffic) on a per-dvSwitch basis, is a Distributed Switch-only feature and is not available on a Standard Switch. Option B (NIC teaming with explicit failover order) is not correct because Standard Switches also support NIC teaming with configurable failover order, so it is not exclusive to the Distributed Switch. Option D (Traffic shaping policies) is not correct because both Standard and Distributed Switches support traffic shaping, though the Distributed Switch offers more granular per-port-group control. Option E (VLAN tagging and trunking) is not correct because VLAN tagging (VST, EST, VGT) and trunking are supported on both Standard and Distributed Switches.

Answer

NIC teaming with explicit failover order.

Answer

Traffic shaping policies.

Answer

VLAN tagging and trunking.

Question 4

A financial services firm maintains a multi-site vSphere environment with independent vCenter Server systems in New York and London, each managing approximately 200 virtual machines. The company requires a disaster recovery solution that can orchestrate failover of an entire site with automated IP address changes and integrated testing capabilities. They also need centralized management and the ability to attach the recovery site's vCenter to the same vCenter Single Sign-On domain as the protected site. The current vCenter versions are 7.0 Update 3. Which solution best meets these requirements while adhering to VMware best practices?

Accepted Answer

Deploy vCenter Site Recovery (SRM) paired with vSphere Replication, and use Enhanced Linked Mode to connect the vCenter systems.. VMware Site Recovery Manager (SRM) with vSphere Replication provides orchestrated disaster recovery with automated IP address changes and integrated testing capabilities. Enhanced Linked Mode allows both vCenter Server systems to share the same vCenter Single Sign-On domain, meeting the centralized management requirement. This combination is the VMware best-practice solution for multi-site failover with independent vCenter Servers.

Answer

Implement a vSAN stretched cluster across both data centers and enable proactive HA policies.

Answer

Configure vCloud Availability for vCloud Director to replicate VMs between sites.

Answer

Use vCenter High Availability (VCHA) to protect the vCenter Server and rely on vSphere HA for VMs.

Question 5

An administrator sees the above error in the vLCM remediation history. What is the most likely cause?

Accepted Answer

The vCenter Server cannot reach the VMware depot.. The error shown in the vLCM remediation history indicates a failure to download the desired image components. vLCM relies on the vCenter Server to fetch VIBs and software depots from the VMware online depot (or a local depot). If the vCenter Server cannot reach the VMware depot due to network issues, proxy misconfiguration, or firewall blocks (e.g., port 443 to *.vmware.com), the remediation will fail with a download error, not a validation or acceptance-level error.

Answer

The desired image validation failed before remediation.

Answer

The host's acceptance level does not allow the VIB.

Answer

The host firmware is incompatible with the VIB.

Question 6

An administrator wants to use vLCM to manage a cluster with 10 ESXi hosts. After enabling vLCM, what is the first step to ensure all hosts are running the same desired image?

Accepted Answer

Define a desired state image for the cluster.. With vLCM, the first step after enabling it on a cluster is to define a desired state image. This image specifies the exact ESXi version, firmware, and driver versions that all hosts in the cluster must match. Without defining this image, vLCM has no target configuration to validate or enforce against the hosts.

Answer

Remediate the cluster immediately to apply the default image.

Answer

Place all hosts into maintenance mode.

Answer

Create a host upgrade baseline and attach it to the cluster.

Question 7

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 8

Refer to the exhibit. What does this error indicate?

Accepted Answer

The target LUN is not available.. In VMware vSphere, an error indicating the target LUN is unavailable typically appears when an ESXi host cannot access a presented storage device — for example, the LUN has been unpresented from the storage array, masked incorrectly in the SAN fabric, or the datastore is in an 'inaccessible' state. The exhibit error (commonly 'The target LUN is not available' or a similar vSphere Client message) points to the LUN no longer being visible to the host, not to a path or HBA fault.

Answer

The path is misconfigured.

Answer

The storage device is not connected.

Answer

The host's HBA is faulty.

Question 9

An administrator notices that a critical VM running a database has a high CPU ready time average (over 20%) on a host with 2 physical CPUs (16 cores each). The host is running 6 VMs, each with 8 vCPUs. What is the most likely cause of the high ready time?

Accepted Answer

The host has too many vCPUs relative to physical cores; reduce vCPU count on some VMs.. The host has 32 physical cores (2 CPUs × 16 cores) but the 6 VMs each with 8 vCPUs total 48 vCPUs, resulting in a vCPU-to-core ratio of 1.5:1. A CPU ready time average over 20% indicates severe contention for physical cores, as the hypervisor cannot schedule all vCPUs simultaneously. Reducing the vCPU count on some VMs would lower the ratio and alleviate the scheduling bottleneck.

Answer

Hyper-Threading should be disabled to reduce scheduling overhead.

Answer

The VMs are not configured with NUMA awareness.

Answer

Memory overcommitment is causing excessive swapping.

Question 10

A vSphere administrator is troubleshooting connectivity issues for a virtual machine that is unable to communicate with other VMs on the same VLAN. The VM is connected to a distributed port group on a vSphere Distributed Switch (vDS). The administrator verifies that the VM's IP configuration is correct and that the port group is configured with the correct VLAN ID. However, the VM can only communicate with other VMs on the same ESXi host. What is the most likely cause?

Accepted Answer

The physical switch ports connecting the ESXi hosts are not configured as trunk ports for the VLAN.. If the VM can communicate with other VMs on the same ESXi host but not with VMs on other hosts in the same VLAN, the issue is almost certainly that the physical switch ports connecting the ESXi hosts are not configured as trunk ports carrying that VLAN. The vDS and port group are correctly configured, so the failure is at the physical uplink layer where VLAN tags must be allowed to pass between hosts.

Answer

The vDS is not configured with a VLAN trunking policy.

Answer

The VM's network adapter is configured with the wrong MAC address.

Answer

The distributed port group has forging transmits set to reject.

Question 11

During a cluster upgrade using vLCM, the pre-check reports that Quick Boot is disabled. How does this affect the upgrade?

Accepted Answer

Hosts will reboot normally. Quick Boot is a vSphere feature that speeds up host reboots by skipping certain hardware initialization steps, but it is not required for an upgrade. If the vLCM pre-check reports Quick Boot is disabled, the upgrade can still proceed; hosts will simply perform a normal reboot, which takes longer. The pre-check is informational, not a blocker.

Answer

Quick Boot speeds up reboot

Answer

No effect

Answer

Upgrade will fail

Question 12

Which switch type requires a separate vCenter Server to manage its configuration?

Accepted Answer

vSphere Distributed Switch. The vSphere Distributed Switch (VDS) requires a separate vCenter Server to manage its configuration because the VDS is a centralized virtual switch that spans multiple ESXi hosts, and its configuration is stored in the vCenter Server database rather than on individual hosts. Without vCenter, the VDS cannot be created, configured, or managed, as the ESXi hosts rely on vCenter to synchronize the distributed port group settings and network policies across the cluster.

Answer

Virtual Edge Gateway Switch

Answer

vSphere Standard Switch

Answer

vSphere Edge Switch

Question 13

An administrator sees this health check output. What should be done to verify VLAN 100 connectivity?

Accepted Answer

Create a VMkernel adapter on VLAN 100 and ping a gateway.. To verify VLAN 100 connectivity at the ESXi host level, the administrator must create a VMkernel adapter tagged with VLAN 100 on the distributed or standard switch and then ping a gateway or another host in that VLAN. This tests the host's own L2/L3 path for that VLAN without involving a guest VM. It directly validates that the physical switch trunk, VLAN tagging, and uplink configuration are correct.

Answer

Enable VLAN pruning on the physical switch.

Answer

Configure a port group for VLAN 100 and connect a VM.

Answer

Restart the management agents.

Question 14

An administrator has configured a vSphere Distributed Switch (VDS) with Network I/O Control. They need to guarantee bandwidth for a specific set of virtual machines. Which method should be used?

Accepted Answer

Create a port group with a custom network resource pool.. Create a port group with a custom network resource pool. Network I/O Control allows administrators to create network resource pools to guarantee bandwidth for specific virtual machines or port groups. By creating a custom network resource pool and assigning it to a port group, you can reserve a certain amount of bandwidth. Option B is incorrect because SR-IOV provides direct hardware passthrough but does not manage bandwidth guarantees; it can actually bypass Network I/O Control. Option C is incorrect because setting a VLAN tag does not guarantee bandwidth; it only separates traffic. Option D is incorrect because traffic shaping is used to limit bandwidth (throttle outgoing traffic) but does not guarantee a minimum bandwidth; it only caps it.

Answer

Enable SR-IOV on the physical NICs.

Answer

Set the virtual machine's network adapter to use a specific VLAN.

Answer

Configure Traffic Shaping on the distributed switch.

Question 15

A vSphere cluster has multiple storage arrays with different capabilities. The administrator wants to automatically place VMs on datastores that match their storage policy. What is required?

Accepted Answer

VM storage policy and Storage DRS. Storage DRS automates initial placement and ongoing balancing of VMs across datastores in a datastore cluster, but it only honors storage requirements when a VM storage policy is assigned. The VM storage policy expresses capabilities such as RAID level, replication, or tier (e.g., gold/silver/bronze), and Storage DRS uses those policy requirements to select a compatible datastore. Therefore both a VM storage policy and Storage DRS are required to automatically place VMs on datastores matching their policy.

Answer

VASA provider

Answer

Storage DRS only

Answer

Storage I/O Control