VCP-DCV Practice Test 32 — 15 Questions

Question 1

An administrator has configured Storage DRS on a cluster of datastores. The cluster includes both NFS and VMFS datastores. The administrator notices that Storage DRS recommendations are not being generated for some datastores. What is the most likely cause?

Accepted Answer

NFS datastores are not supported by Storage DRS. Storage DRS does not support NFS datastores unless they are on a NAS array with VAAI. Option D is correct. Option A (vSAN) is incorrect as vSAN has its own DRS. Option B (space utilization) would still generate recommendations. Option C (I/O metrics) would work if supported.

Answer

The datastore space utilization is below the threshold

Answer

The datastores are part of a vSAN cluster

Answer

I/O metrics are not enabled for the Storage DRS cluster

Question 2

Refer to the exhibit. An administrator checks the vSAN cluster health and sees the above output. The cluster has been running for months. What is the most likely cause of the degraded objects?

Accepted Answer

A disk failure occurred and components are being rebuilt. Degraded objects in vSAN indicate that component failures have occurred and repair is ongoing (resyncing). Option C is correct. Option A (network) would show connectivity issues. Option B (capacity) would show rebalance. Option D (policy change) would cause reconfiguration but not typically degrade.

Answer

A storage policy was changed to increase redundancy

Answer

A disk group is full and needs capacity expansion

Answer

A network partition between hosts

Question 3

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

Accepted Answer

vSAN. vSAN pools local disks from multiple hosts into a shared datastore. VMFS is a filesystem, NFS is network storage, vFlash is caching.

Answer

VMFS

Answer

vFlash

Answer

NFS

Question 4

An administrator needs to provision an NFS datastore for VMs that require high performance and low latency. The storage array supports multiple NFS versions. Which NFS version should be selected for the best performance?

Accepted Answer

NFS v4.1. NFS version 4.1 provides better performance and security compared to earlier versions, including support for pNFS and sessions. Option B is wrong because NFS v3 is older and has limitations. Option C is wrong because NFS v4.0 lacks some optimizations. Option D is wrong because there is no common NFS v2 in modern environments.

Answer

NFS v2

Answer

NFS v4.0

Answer

NFS v3

Question 5

Refer to the exhibit. An administrator creates a storage policy with the rule: "Rule: provisioningType equals thick". When the policy is applied to a VM on this array, what will be the compliance status?

Accepted Answer

Not compliant - the array does not advertise thick provisioning capability.. The array only advertises thin provisioning and replication capabilities. The policy requires thick provisioning, which is not advertised. Therefore the VM will be marked as uncompliant because the array does not support the required capability. Option B is incorrect because it does not match; the array supports thin only. Option C is incorrect because VVols do not automatically default to thick. Option D is incorrect because the array does not provide thick.

Answer

Not compliant - the replication RPO is too high.

Answer

Compliant - the storage policy is applied regardless of capabilities.

Answer

Compliant - the array supports thin provisioning by default.

Question 6

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 datastore has two extents: one with 1,048,576 blocks and one with 2,097,152 blocks, both with 1 MB block size. Total blocks = 3,145,728. Since each block is 1 MB, total capacity is 3,145,728 MB, which is approximately 3.14 TB. Option D is correct. Option A (1 TB) is the size of the smaller extent. Option B (2 TB) is the larger. Option C (2.5 TB) is incorrect.

Answer

2.5 TB

Answer

2 TB

Answer

1 TB

Question 7

Which TWO of the following are required for vSphere Storage DRS to function?

Accepted Answer

vMotion enabled on the hosts. Storage DRS requires multiple datastores in a datastore cluster and vMotion to migrate VMs between them. SIOC, VASA, and storage policies are optional.

Answer

VM storage policies defined

Answer

VASA provider registered

Answer

SIOC enabled on each datastore

Question 8

An administrator needs to expand a VMFS5 datastore that is currently 2 TB in size. The underlying LUN is 5 TB. What is the maximum size the datastore can be expanded to without involving additional LUNs?

Accepted Answer

5 TB. VMFS5 supports datastores up to 64 TB, but the LUN size limits the datastore. The LUN is 5 TB, so the datastore can be expanded to 5 TB (the full LUN size). Option B is incorrect because 2 TB is the current size. Option C is incorrect because 64 TB is the max theoretical size but limited by LUN. Option D is incorrect because 4 TB is not the LUN size.

Answer

64 TB

Answer

4 TB

Answer

2 TB

Question 9

A financial services company has a vSAN cluster composed of 4 hosts, each with 8 disk groups (1 SSD cache and 6 HDD capacity per group). The cluster runs a mix of VMs, including a critical trading application VM that requires low latency. The administrator notices that the trading VM experiences intermittent performance degradation during market hours. vSAN performance monitoring shows high I/O latency for the VM's objects. The storage policy for this VM is set to RAID-1 (Mirroring) with Primary Failures to Tolerate (PFTT)=1 and Object Space Reservation=100%. The cluster has a disk capacity of 80% used. The administrator also observes that the vSAN cluster is configured with a single fault domain. Which action should the administrator take to improve the trading VM's performance?

Accepted Answer

Reduce the number of disk groups per host to 2, using larger SSDs for cache, to reduce cache contention.. Creating multiple fault domains allows vSAN to place replicas across different failure domains, improving availability and potentially reducing contention. However, the performance issue is likely due to resource contention. The best action is to reduce the number of disk groups per host to lower the number of devices competing for cache. Option A is incorrect because increasing PFTT to 2 would require more resources and increase overhead, worsening performance. Option C is incorrect because adding more hosts without reducing disk groups may not help if the bottleneck is cache contention. Option D is incorrect because deduplication and compression add CPU overhead and may increase latency, not reduce it.

Answer

Add two more hosts to the cluster and redistribute the disk groups.

Answer

Change the storage policy to PFTT=2 and Failure Tolerance Method=RAID-5/6 to reduce the number of replicas.

Answer

Enable deduplication and compression on the vSAN datastore to reduce capacity usage and I/O.

Question 10

What is the maximum number of paths that vSphere supports for a single storage device?

Accepted Answer

32. vSphere supports up to 32 paths per storage device. 4 paths is common for some arrays, 8 is typical but not the maximum, and 256 is too high.

Answer

8

Answer

256

Answer

4

Question 11

Which TWO of the following are prerequisites for enabling jumbo frames on a vSphere host for storage traffic?

Accepted Answer

The VMkernel port must be configured with MTU 9000. Jumbo frames require physical switch support and VMkernel port MTU configuration. The storage array, guest OS, and vCenter do not directly affect host-level jumbo frame operation.

Answer

The virtual machine guest OS must support jumbo frames

Answer

The storage array must support jumbo frames

Answer

The vCenter Server must be configured for jumbo frames

Question 12

A vSphere administrator is planning a Storage DRS implementation for a datastore cluster containing multiple VMFS datastores. The VMs have various I/O patterns. Some VMs should always remain together on the same datastore. Which configuration should be used?

Accepted Answer

Create a VM-to-VM affinity rule in the datastore cluster.. Storage DRS affinity rules allow you to keep VMs together (VM-to-VM affinity) or separate. Option B is incorrect because anti-affinity would separate them. Option C is incorrect because SIOC is for I/O control, not placement. Option D is incorrect because per-datastore rules don't exist; Storage DRS rules are at the datastore cluster level.

Answer

Set individual datastore affinity rules on each host.

Answer

Apply Storage I/O Control with high shares to the VMs.

Answer

Create a VM-to-VM anti-affinity rule in the datastore cluster.

Question 13

A storage administrator is planning a vSAN stretched cluster for a remote office. The cluster must support stretching across two sites for disaster avoidance. Which two prerequisites must be met? (Choose two.)

Accepted Answer

The network latency between sites must be less than 5 ms round-trip.. Correct options A and D: Each site must have a minimum of two hosts (A) and network latency between sites must be less than 5 ms round-trip (D). Option B is incorrect because the witness host must be placed at a third site, not the primary. Option C is incorrect because a vSAN stretched cluster uses two fault domains (one per site) plus a witness, not four. Option E is incorrect because hosts can use multiple network adapters for vSAN traffic.

Answer

The witness host must be placed at the primary site.

Answer

All hosts must be configured with a single network adapter for vSAN traffic.

Answer

A vSAN stretched cluster requires a minimum of four fault domains.

Question 14

An administrator is configuring a vSAN cluster with all-flash capacity. The cluster uses RAID-5 erasure coding with a policy of 'Number of failures to tolerate = 1' (PFTT=1). The administrator wants to minimize storage overhead while ensuring availability. Which vSAN storage policy setting should be used?

Accepted Answer

Set 'Primary level of failures to tolerate' to 1 and 'Primary level of failures to tolerate method' to 'RAID-5 (Erasure Coding)'. For all-flash vSAN, RAID-5/6 erasure coding is recommended. With PFTT=1, RAID-5 requires only 1 parity component, minimizing overhead. Option C is correct. Option A (RAID-1 mirroring) would use more capacity. Option B (RAID-6) is for PFTT=2 and adds more overhead. Option D (no redundancy) is not fault tolerant.

Answer

Set 'Primary level of failures to tolerate' to 1 and 'Primary level of failures to tolerate method' to 'RAID-1 (Mirroring)'

Answer

Set 'Primary level of failures to tolerate' to 2 and 'Primary level of failures to tolerate method' to 'RAID-6 (Erasure Coding)'

Answer

Set 'Primary level of failures to tolerate' to 0

Question 15

What is the default block size of a VMFS5 datastore?

Accepted Answer

1 MB. VMFS5 uses a default block size of 1 MB. Larger block sizes are available but not default.

Answer

8 MB

Answer

2 MB

Answer

4 MB