3V0-23.25 sample questions

Question 1

An architect is designing a greenfield VMware Cloud Foundation 9.0 workload domain for a financial institution. The institution has a strict requirement to use their existing high-performance Fibre Channel All-Flash Arrays for the principal storage of the new domain due to regulatory data sanitization standards that their current arrays already meet. Which design decision aligns with VCF 9.0 capabilities?

Accepted Answer

Commission the hosts with the VMFS on FC storage type and select VMFS on FC as the principal storage option in the workload domain creation workflow.

Answer

Deploy the workload domain using vSAN as principal storage, then mount the FC LUNs as supplemental storage.

Answer

Configure the Fibre Channel arrays to present storage via iSCSI, then import the storage as principal using the brownfield ingestion workflow.

Answer

Deploy a Management Domain with vSAN, then use HCI Mesh to mount the FC datastores to the new Workload Domain.

Question 2

A storage administrator is evaluating the move from vSAN Original Storage Architecture (OSA) to vSAN Express Storage Architecture (ESA) for a new VCF 9.0 deployment. The environment requires the highest possible storage efficiency for VDI workloads that have high deduplication potential. Which architectural difference in ESA 9.0 directly benefits this scenario compared to OSA?

Accepted Answer

ESA global deduplication (available as limited release in 9.0 P01) uses a cluster-wide deduplication domain with 4KB granularity, whereas OSA uses per-disk-group deduplication.

Answer

ESA performs deduplication after encryption at the bottom of the stack, ensuring secure data reduction.

Answer

ESA allows mixing HDD and NVMe drives in the same storage pool to optimize cost for deduplicated data.

Answer

ESA uses a two-tier architecture where the cache tier is dedicated solely to metadata handling for deduplication.

Question 3

A consultant is designing a vSAN Stretched Cluster for a VCF 9.0 environment spanning two datacenters. The customer requires a solution that can tolerate a complete site failure while maintaining the lowest possible storage overhead. Which vSAN storage policy configuration meets these requirements?

```mermaid
flowchart LR
A["Stretched Cluster
Site A + Site B"] --> B{Choose
Resilience Strategy}
B -->|Maximum
Efficiency| C["Dual Site Mirroring
RAID-1 across sites
+ Local RAID-5
(~2.66x OSA / 2.5-3x ESA total)"]
B -->|Higher
Overhead| D["Dual Site Mirroring
RAID-1 across sites
+ Local RAID-1
(4x total)"]
C --> E["Recommended
for Cost Optimization"]
D --> F["Simpler but
Expensive"]
```

Accepted Answer

Site Disaster Tolerance: Dual Site Mirroring (RAID-1); Failures to Tolerate: 1 failure - RAID-5 (Erasure Coding)

Answer

Site Disaster Tolerance: None - Keep Data on Preferred; Failures to Tolerate: 2 failures - RAID-6 (Erasure Coding)

Answer

Site Disaster Tolerance: Dual Site Mirroring (RAID-1); Failures to Tolerate: 1 failure - RAID-1 (Mirroring)

Answer

Site Disaster Tolerance: Dual Site Mirroring (RAID-1); Failures to Tolerate: No data redundancy

Question 4

An administrator needs to enable data-at-rest encryption on a new vSAN ESA cluster within VCF 9.0. The organization has strict security policies requiring the separation of key management from the virtualization platform. Which component must be configured before enabling vSAN data-at-rest encryption on the cluster?

Accepted Answer

Standard Key Provider with a trusted external Key Management Server (KMS)

Answer

vSphere Native Key Provider (NKP)

Answer

Host-based TPM 2.0 modules for local key generation

Answer

vSAN Encryption Services Appliance

Question 5

During the deployment of a new VCF 9.0 Workload Domain, an architect selects NFSv3 as the principal storage. Which prerequisite must be met in VCF for this configuration to succeed?

Accepted Answer

A network pool that includes an NFS network (with IP inclusion ranges for the NFS VMkernel adapters) must be created and used when commissioning the hosts.

Answer

The NFS network must be routed to the Management network to allow SDDC Manager to mount the datastores.

Answer

Jumbo Frames (MTU 9000) must be disabled on the physical switches to ensure compatibility with the NFSv3 protocol.

Answer

The NFS share must be configured with 'no_root_squash' disabled to prevent root access from ESXi hosts.

Question 6

A VCF administrator is troubleshooting a vSAN ESA cluster that is reporting high latency. The cluster uses RAID-6 storage policies. Upon inspection, the administrator notices that the 'Congestion' metric in the vSAN Performance Service is consistently high. What is the most likely cause of this behavior in an ESA architecture?

Accepted Answer

The backend storage devices (and their associated vSAN memory resources) cannot absorb the incoming write rate, so vSAN applies backpressure that slows guest I/O.

Answer

The Log Structure Object Manager (LSOM) is throttling I/O due to the backend NVMe devices reaching their write endurance limits.

Answer

The elevator algorithm in the capacity tier is unable to destage data fast enough from the write buffer.

Answer

The RAID-6 calculation overhead is consuming all available CPU cycles on the host, preventing I/O processing.

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Free 3V0-23.25 sample questions

During the deployment of a new VCF 9.0 Workload Domain, an architect selects NFSv3 as the principal storage. Which prerequisite must be met in VCF for this configuration to succeed?

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