VCP-DCV Configure and Manage vSphere Storage Practice Test 4 — 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.. The SATP is ALUA, which uses asymmetric states. 'Standby' indicates a non-optimized path. Zoning issues or authentication errors would result in a dead path, not standby. The PSP is round-robin, so it is not Fixed.

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. A VM is deployed with this storage policy. What is the minimum number of hosts required for the VM's objects to be provisioned successfully?

Accepted Answer

3. With FTT=1 and default RAID-1 mirroring, vSAN needs 2 data replicas plus 1 witness, requiring at least 3 hosts. A single host cannot tolerate failure; two hosts would work for FTT=0.

Answer

4

Answer

2

Answer

1

Question 3

Refer to the exhibit. What does this error indicate?

Accepted Answer

The target LUN is not available.. SCSI sense key D:0x2 indicates 'Not Ready', meaning the LUN is not available. Host bus adapter failure or path misconfiguration would produce different sense codes; no path would show a different state.

Answer

The path is misconfigured.

Answer

The storage device is not connected.

Answer

The host's HBA is faulty.

Question 4

A company experiences high latency on a VM running a critical database. The storage is a VMFS datastore on a SAN. The administrator notices that other VMs on the same datastore are idle. What should the administrator configure to ensure the database VM gets sufficient storage I/O resources?

Accepted Answer

Configure Storage I/O Control and set the database VM's shares to High.. Storage I/O Control (SIOC) dynamically shares storage I/O resources among VMs on a datastore. By setting a higher share value for the database VM, it gets priority during congestion. Option B is incorrect because manually setting low I/O limits on all other VMs is inefficient and may lead to underutilization; SIOC with shares is adaptive. Option C is incorrect because setting a latency threshold (e.g., 5 ms) is a configuration for SIOC to start congestion control, but it does not by itself ensure the database VM gets sufficient I/O; the key is adjusting shares. Option D is incorrect because Storage DRS (not compute DRS) migrates VMs for space and I/O load balancing, but it does not prioritize I/O for a specific VM; it balances across datastores over time.

Answer

Set storage I/O limits on all other VMs to 100 IOPS.

Answer

Configure Storage I/O Control and set a latency threshold of 5 ms.

Answer

Use Storage DRS to migrate idle VMs to another datastore.

Question 5

An administrator needs to create a datastore cluster for a set of VMs that require high availability. The VMs should be automatically balanced across datastores based on I/O latency. Which feature must be enabled on the datastore cluster?

Accepted Answer

Storage DRS with I/O metric enabled.. Storage DRS with I/O metric enabled allows automatic balancing based on I/O latency. Option A is incorrect because SIOC is a per-datastore feature for controlling I/O shares and limits, not for balancing across datastores in a cluster. Option B is incorrect because vSphere HA provides high availability for VMs in case of host failure, not storage balancing. Option C is incorrect because Storage DRS without the I/O metric uses only space capacity to balance VMs, not I/O latency. Option D is correct because Storage DRS with the I/O metric enables I/O latency-based balancing across datastores in the cluster.

Answer

Storage I/O Control (SIOC) on each datastore.

Answer

vSphere HA for the datastore cluster.

Answer

Storage DRS without I/O metric, using space only.

Question 6

A vSAN cluster uses a storage policy with Primary Failures to Tolerate (PFTT) = 1 and Failure Tolerance Method = RAID-1 (Mirroring). What is the minimum number of hosts required to support this policy if each host contributes one disk group?

Accepted Answer

3. For a vSAN cluster with PFTT=1 and RAID-1 mirroring, the minimum number of hosts required is 3. This ensures two copies of data (mirrors) and one witness component. A standard cluster with 2 hosts cannot support PFTT=1 because only two copies exist without a witness. Options 4 and 6 exceed the minimum, so option B (3) is correct.

Answer

4

Answer

6

Answer

2

Question 7

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 underlying LUN size limits the datastore expansion. The LUN is 5 TB, so the datastore can be expanded to the full LUN size of 5 TB. Option A (64 TB) is incorrect because it exceeds the LUN capacity. Option C (4 TB) is incorrect because it is less than the available LUN size. Option D (2 TB) is incorrect because it is the current size, not the maximum expansion.

Answer

64 TB

Answer

4 TB

Answer

2 TB

Question 8

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 (anti-affinity). To ensure VMs remain together, a VM-to-VM affinity rule is required. Option B is incorrect because Storage DRS does not support per-host datastore affinity rules; rules are at the datastore cluster level. Option C is incorrect because Storage I/O Control manages I/O prioritization, not VM placement. Option D is incorrect because a VM-to-VM anti-affinity rule would separate the VMs, not keep them together.

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 9

An administrator needs to attach a SAN LUN to a VM for a clustered application that requires SCSI-3 persistent reservations. The VM will run on two hosts in a cluster. Which storage option should be used?

Accepted Answer

Create a physical mode RDM (Raw Device Mapping).. Physical mode RDM (Raw Device Mapping) supports SCSI-3 persistent reservations and allows sharing the LUN between VMs in a cluster. Virtual compatibility mode (virtual RDM) does not support persistent reservations, so option A is incorrect. Option C (thick-provisioned eager zeroed VMDK on VMFS) does not support persistent reservations because VMDKs are managed by VMFS and cannot pass through SCSI-3 commands. Option D (VVol representing the LUN) may not support persistent reservations in the same direct manner as a physical RDM, and typically requires additional configuration. Therefore, physical mode RDM is the correct choice.

Answer

Create a virtual mode RDM (Raw Device Mapping).

Answer

Create a thick-provisioned eager zeroed VMDK on VMFS.

Answer

Create a VVol representing the LUN.

Question 10

An administrator is configuring multipathing for a Fibre Channel storage array. The administrator wants to maximize throughput by using all available paths. Which path selection policy should be chosen?

Accepted Answer

Round Robin (VMW_PSP_RR). Round Robin (VMW_PSP_RR) policy distributes I/O across all active paths, which maximizes throughput by utilizing all available paths. Option A (Fixed) uses a single preferred path and does not utilize all paths. Option B (MRU) uses one path until failure, then switches, so it does not use all paths simultaneously. Option C (Vendor-specific) refers to a policy that may be provided by the storage vendor, but the given code VMW_PSP_FIXED_AP is actually a variant of the Fixed policy for Active/Passive arrays, so it also does not use all paths. Therefore, Round Robin is the correct choice.

Answer

Fixed (VMW_PSP_FIXED)

Answer

Most Recently Used (VMW_PSP_MRU)

Answer

Vendor-specific (VMW_PSP_FIXED_AP)

Question 11

A vSphere administrator configures a VVol datastore on a Pure Storage array. The administrator creates a storage policy with a custom tag. After attaching the policy to a VM, the VM remains uncompliant. What is the most likely cause?

Accepted Answer

The storage array does not support the capability specified in the policy.. VVol storage policies rely on capabilities advertised by the array through VASA. If the array does not support the specific capability or tag used in the policy, the VM will be uncompliant. Option A is correct because the custom tag in the storage policy is not supported by the Pure Storage array. Option B is incorrect: VVol datastores require VASA certification; if the array were not VASA-compliant, it could not host a VVol datastore at all. Option C is incorrect because Storage DRS is unrelated to VVol policy compliance. Option D is incorrect because VVol datastores can use either iSCSI or NFS protocols, and the protocol does not affect compliance.

Answer

The storage array is not VASA-compliant.

Answer

The datastore cluster is not configured for Storage DRS.

Answer

The VVol datastore is using NFS protocol instead of iSCSI.

Question 12

Which TWO vSAN components are always created for every virtual disk object in a vSAN datastore? (Choose two.)

Accepted Answer

Metadata component

Answer

RAID-5 parity component

Answer

Checksum component

Answer

Witness

Question 13

Which THREE conditions must be met for Storage I/O Control (SIOC) to work effectively? (Choose three.)

Accepted Answer

The datastore must be VMFS5 or later.

Answer

Jumbo frames must be enabled on the storage network.

Answer

The datastore must be connected via Fibre Channel only.

Question 14

Which TWO statements are true about datastore heartbeating in vSphere HA? (Choose two.)

Accepted Answer

At least two datastores should be selected for heartbeating to provide redundancy.

Answer

Datastore heartbeating is enabled by default when vSphere HA is configured.

Answer

Datastore heartbeating is used to detect host isolation.

Answer

vSphere HA uses datastore heartbeating as the primary method for failure detection.

Question 15

Refer to the exhibit. What type of virtual disk is represented by this descriptor file?

Accepted Answer

Thick provisioned eager zeroed VMDK. The descriptor shows createType='vmfs' and a single extent with a 'flat.vmdk' file. This is characteristic of a thick provisioned virtual disk on VMFS. Specifically, thick provisioned eager zeroed VMDK files use the 'flat.vmdk' naming convention. Option A is incorrect because a thin provisioned VMDK would have createType='vmfsThin'. Option C is incorrect because a sparse disk with multiple extents would list multiple extents in the descriptor. Option D is incorrect because a physical mode RDM would have createType='vmfsRaw' or 'vmfsRawDeviceMap' and reference a raw device mapping.

Answer

Thin provisioned VMDK

Answer

Sparse disk with multiple extents

Answer

Physical mode RDM