Free Access VMware.3V0-23.25.v2026-09-17.q73 Practice Test (Page 12)

Question 51

A Solutions Architect is consolidating several independent Fibre Channel LUN-backed VMFS datastores into a Datastore Cluster to utilize Storage DRS (SDRS) in a VCF Workload Domain.
```
[SDDC Manager - Storage Summary]
Target SDRS Cluster: WLD01-DS-Cluster
DS-01: VMFS-5 (10TB, Array-1)
DS-02: VMFS-6 (10TB, Array-2)
DS-03: VMFS-6 (10TB, Array-1)
```
The architect attempts to add these three datastores into the new Datastore Cluster, but vCenter blocks the operation for DS-01. Furthermore, the architect is concerned about performance degradation during Storage vMotion operations within the cluster.
How do the underlying LUN attributes and VMFS configurations dictate the success and performance of this Datastore Cluster design? (Select all that apply.)

A.DS-01 cannot be included in the Datastore Cluster because SDRS strictly forbids mixing VMFS-5 and VMFS-6 datastores in the same cluster to prevent filesystem capability mismatches.

B.A Datastore Cluster logically merges the underlying LUNs into a single 30TB namespace, destroying the original LUN isolation.

C.To ensure hardware-accelerated Storage vMotion (VAAI XCOPY) between datastores, the underlying LUNs must reside on the same physical storage array.

D.Storage DRS requires that all underlying LUNs be mapped (masked) and accessible to all ESXi hosts in the Compute Cluster to facilitate VM mobility.

Question 52

An administrator reports that after rebooting one host in a vSAN cluster configured with Data-at-Rest Encryption using an external Key Management Server (KMS), the host shows all vSAN disk groups as unmounted.
The KMS is online and reachable from all hosts.
In vCenter, the host displays the following event:
"Failed to retrieve encryption key from KMS."
Key ID:
All other hosts in the cluster remain healthy and show "Encryption: Enabled." Why did the encryption key retrieval fail for this host?

A.The host's trust relationship or certificate with the KMS is invalid or missing.

B.The cluster requires a Deep Rekey operation to restore access to the encrypted disks.

C.The vCenter Server has not been restarted to refresh the encryption key cache.

D.The TPM on the host failed to unlock the data encryption keys.

Question 53

A Storage Administrator is performing post-migration health checks after upgrading a Workload Domain from vSAN OSA to vSAN ESA. The legacy OSA cluster heavily relied on Deduplication to meet capacity requirements.
The administrator pulls the vmkernel.log and observes the compression statistics for the ESA storage pool.
```
2026-11-20T10:15:22Z INFO vsan-lsom - Object 5543... enabling
compression.
2026-11-20T10:15:35Z INFO vsan-dom - Write I/O (4KB) compressed to 1KB.
Network transmit: 1KB.
2026-11-20T10:15:45Z INFO vsan-crypto - Encrypting 1KB payload.
2026-11-20T10:16:00Z INFO vsan-lsom - Storage Pool capacity update:
Total logical written 100TB, Physical consumed 40TB.
```
The administrator is concerned that the loss of "Deduplication" in ESA will cause the cluster to run out of physical space.
How does the log data and the deep architectural fusion of ESA features resolve the administrator's concern? (Select all that apply.)

A.The log proves that 100TB of logical data is only consuming 40TB of physical space (a 2.5x efficiency ratio) using ONLY compression, effectively replacing the legacy deduplication savings.

B.Because Deduplication is missing, the backend resync time during a host failure will increase significantly compared to OSA, as ESA must rebuild duplicate blocks.

C.By eliminating the deduplication hash table lookups, ESA eliminates the primary cause of high backend latency, allowing the storage pool to sustain higher IOPS even as capacity fills up.

D.The log confirms the "Top-of-Stack" processing pipeline: Data is Compressed FIRST (4KB to
1KB), then Transmitted, then Encrypted. This ensures the network and encryption engines only process the minimized payload.

Question 54

Which statement accurately defines the primary architectural function of the Cluster Level Object Manager (CLOM) within the VMware vSAN storage stack?

A.CLOM executes the final log-structured write operations, deduplication, and compression directly onto the physical NVMe storage pool devices.

B.CLOM is a Kubernetes control plane component that maps Container Storage Interface (CSI) requests into physical vSAN First Class Disks (FCDs).

C.CLOM intercepts guest VM I/O at the hypervisor level and routes the SCSI commands over the vSAN network to the appropriate Distributed Object Manager (DOM) instances.

D.CLOM is responsible for evaluating SPBM requirements, generating the initial component distribution tree across the cluster, and orchestrating self-healing rebuilds when host failures occur.

Question 55

A Compliance Auditor is validating that a proposed vSAN ReadyNode hardware cluster meets the exact requirements needed to support a highly aggressive Storage Policy requested by the development team.
The policy requires extreme read performance for a distributed file system.
```
# SPBM Policy: "Extreme-Read-Parallelism"
FailuresToTolerate: 1 (RAID-1)
StripeWidth: 10
ObjectSpaceReservation: 100%
```
The auditor examines the vSAN Sizer output. The Sizer rejects the existing 4-Node, 6-drive-per- host cluster configuration.
How does the interaction between the StripeWidth: 10 rule and the vSAN object placement algorithm dictate the required hardware ReadyNode scaling in the Sizer? (Select all that apply.)

A.The Sizer may recommend adding more hosts to the cluster (Scale-Out) to increase the aggregate number of physical NVMe spindles available to absorb the 10-wide stripe distribution.

B.The "ObjectSpaceReservation: 100%" component requires the Sizer to recommend drives with
100% dedicated cache capacity, which violates ESA standards.

C.If the Sizer keeps the cluster at 4 nodes, it must recommend ReadyNodes equipped with a significantly higher density of NVMe drives per host (e.g., 12-24 drives per host) to satisfy the high local stripe width capacity.

D.Stripe Width is a logical construct that ignores physical drive count; the Sizer rejection is purely based on the FTT=1 memory overhead limit.

E.The "Stripe Width = 10" rule forces the DOM to distribute a single replica of the VMDK across 10 distinct physical NVMe drives. If a single host only has 6 drives, the Sizer must expand the object across multiple hosts to find 10 drives.

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Question 51

Question 52

Question 53

Question 54

Question 55

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