NEW 2026 Certification Sample Questions 3V0-23.25 Dumps & Practice Exam [Q33-Q53]

QUESTION 33
A Compliance Auditor is validating that a VCF Workload Domain meets the “Continuous Key Rotation” requirements of a strict financial standard (e.g., SOX/PCI).
The auditor examines the vCenter logs surrounding the Data-in-Transit (DiT) configuration.
“`
[Log Analysis: vpxd.log]
2026-11-20T12:00:00Z INFO vpxd – [DiT] Rekey interval expired (1440 minutes).
2026-11-20T12:00:01Z INFO vpxd – [DiT] Ephemeral session keys successfully renegotiated between
[esx-03] and [esx-05].
2026-11-20T12:00:02Z INFO vpxd – [DiT] Old key buffer purged.
“`
How does the DiT key rotation architecture satisfy compliance without relying on external KMS administrators? (Select all that apply.)

Key rotation occurs instantly at the packet layer; the DOM Client creates a new key for every single
4KB block written.

DiT keys are automatically persisted to the vCenter database as backup material before deletion, ensuring forensic accountability.

The ESXi hosts must temporarily pause cluster write operations (Congestion) for 30 seconds to synchronize the new symmetric keys.

The default “Rekey Interval” for DiT is 1440 minutes (24 hours). The ESXi hosts automatically perform a new Diffie-Hellman handshake every day to create a completely new session key, making brute-force decryption of historical traffic impossible.

The RekeyInterval can be aggressively modified via API (e.g., to 60 minutes) to meet stricter compliance rules, without causing any disruption to the active storage traffic.

QUESTION 34
An administrator is working on a VMware Cloud Foundation (VCF) Workload Domain that was configured to use vSAN for principal storage. The administrator wishes to create and configure a datastore cluster to host tenant VMs using that vSAN backed storage across multiple clusters, mixed OSA and ESA, in the domain.
What should the administrator consider?

vSAN OSA and ESA based datastores must be added to a datastore cluster tag and then selected as part of a single storage policy.

When using vSAN datastores, Datastore Clusters are not supported. Each VM must be placed manually on the vSAN datastore.

A datastore cluster can combine different storage types, such as vSAN, FC, and NFS datastores, as long as they are in the same vCenter; Storage DRS will treat them uniformly.

When using vSAN as the underlying datastore, an administrator must create the datastore cluster via vCenter APIs, include the vSAN datastore(s) in it, enable Storage DRS, and ensure the VM Storage Policies reference the appropriate vSAN-capable datastore.

QUESTION 35
A Network Administrator and Storage team are deploying a VCF Workload Domain with vSAN Data Protection configured for “Remote Replication” to a secondary cluster.
The security policy mandates Data-at-Rest Encryption for all production VMs.
“`
# SPBM Policy: “Prod-Encrypted-DP”
[Capabilities]
Host.FailuresToTolerate: 1 (RAID-1)
Data.Encryption: Enabled (KMS-Prod)
DataProtection.RemoteTarget: “Sec-Site-Cluster”
DataProtection.RPO: 30 minutes
“`
A VM is instantiated with this policy. A remote snapshot is successfully taken and replicated to the Sec- Site-Cluster.
How does the interaction between vSAN Native Encryption, SPBM, and Data Protection snapshots function to secure the data at the secondary site? (Select all that apply.)

vSAN Native Encryption is a datastore-level setting; the snapshots residing on the secondary cluster are protected by the encryption key specific to the *target* datastore, not the source VM’s key.

The snapshot payload is decrypted on the source site, transferred over the network in cleartext, and re-encrypted on the target site using the secondary cluster’s local KMS key.

The snapshot data remains in its native, block-level format during replication; therefore, if vSAN Data- in-Transit (DiT) encryption is enabled between sites, the traffic is secured regardless of the VM’s storage policy.

The SPBM policy ensures that the replicated snapshot object on the secondary site inherits the equivalent “Encrypted” storage capability, assuming the target datastore has vSAN encryption enabled.

QUESTION 36
An administrator is preparing to enable vSAN Data-at-Rest Encryption and must verify that the identity and key provider prerequisites are met before proceeding with the configuration.
Which two requirements must be met? (Choose two.)

OSA requires a trusted KMS identity before encryption can be enabled.

ESA requires Trusted Platform Modules (TPMs).

OSA does not support external KMS integration.

ESA requires a trusted KMS identity before encryption can be enabled.

OSA requires Trusted Platform Modules (TPMs).

QUESTION 37
Which architectural configuration strictly differentiates a vSAN 2-Node Direct-Connect cluster in a Remote Office/Branch Office (ROBO) environment from a standard 3-node vSAN deployment?

The 2-Node configuration requires the Witness Appliance to be installed locally on one of the edge servers, consuming valuable compute resources.

2-Node Direct-Connect clusters are restricted to the Original Storage Architecture (OSA) because the Express Storage Architecture (ESA) log-structured filesystem requires a minimum of three physical hosts.

The storage network traffic traverses direct crossover cables between the two local hosts, completely eliminating the requirement for a local 10/25 GbE top-of-rack storage switch.

Standard 3-node clusters use traditional multicast Ethernet, whereas 2-Node Direct-Connect clusters require Fibre Channel crossovers to maintain synchronization.

QUESTION 38
In a vSAN ESA cluster, one host goes offline unexpectedly for more than an hour.
When it returns online, vSAN needs to rebuild and restore compliance for several objects that became degraded during the outage.
Drag and drop the three correct options for the automatic recovery process from the Options list on the left and place them into the Valid Actions on the right in any order. (Choose three.)

QUESTION 39
A VMware Cloud Foundation (VCF) Workload Domain is requested to be deployed with the following information:
* 6 blade style hosts with no local storage beyond the operating system.
* 4 25 Gb networking cards installed in each host.
* A 30 TB external array configured to support NVMe/TCP only.
* 2 dVS switches, one configured for storage isolation and one for all other traffic.
* NVMe/TCP multi-path configuration required.
* Existing Management Domain is deployed with VCF.
Place the steps for importing VCF on to this configuration.

QUESTION 40
A Compliance Auditor is reviewing the storage state of a Tanzu environment hosted on VCF. The auditor notices a critical “Orphaned CNS Volumes” warning in the Skyline Health dashboard.
“`
[Skyline Health > Cloud Native Storage]
CNS Volume Health
Volume ID: 52a1… (pvc-finance-db)
SPBM Compliance: N/A
Issue: Shadow / Orphaned Volume
“`
Upon investigation, a junior administrator admits they used the vCenter GUI to delete the underlying First Class Disk (FCD) VMDK to free up space, because the Kubernetes Pod using it was temporarily powered off.
Which TWO statements accurately describe the resulting architectural anti-pattern and its consequence? (Choose 2.)

The Kubernetes pod will fail to start and enter a “CrashLoopBackOff” state because the CSI driver cannot mount the physical backing disk that was deleted.

Deleting the FCD via vCenter breaks the Control Plane integration; Kubernetes still believes the Persistent Volume (PV) exists, leaving the cluster in a “Shadow” out-of-sync state.

CNS will automatically detect the missing FCD and trigger a vSAN DOM re-sync to reconstruct the deleted disk from the Witness metadata.

The junior admin successfully reclaimed the space; Kubernetes will automatically regenerate the data from the container image when the pod restarts.

First Class Disks (FCDs) are ephemeral by definition and should be deleted manually whenever a pod shuts down to maintain cluster efficiency.

QUESTION 41
A Storage Administrator is replacing a vSAN Witness Appliance for a Stretched Cluster that utilizes vSAN Data-at-Rest Encryption. The original Witness Appliance suffered an unrecoverable boot failure. The administrator deploys the new appliance via OVF and uses an automation script to configure the networking and encryption pre-requisites before running the vCenter “Change Witness” workflow.
“`
# Cloud-Init / Automation Spec for New Witness
network:
vmk0: 10.10.10.150/24 (Management)
vmk1: 172.16.20.150/24 (Witness – MTU 1500)
static_routes: [ “192.168.0.0/16 via 172.16.20.1” ]
security:
kms_trust_establishment: “True”
host_key_retrieval: “Disabled (Metadata Only)”
“`
How does the interaction between the encryption layer and the new Witness Appliance behave during this replacement process? (Select all that apply.)

When the DOM syncs metadata to the new Witness, the metadata is transmitted over the wire unencrypted unless Data-in-Transit encryption is also enabled.

Disabling “host_key_retrieval” on the Witness is a valid optimization because the Witness only uses standard VMFS for its storage, not the encrypted vSAN datastore.

The new Witness Appliance will require a “Deep Rekey” operation to generate a unique Disk Encryption Key (DEK) for its local cache device.

The new Witness Appliance must establish trust with the Key Management Server (KMS), because even though it does not hold payload data, it stores encrypted metadata components.

QUESTION 42
An Operations Engineer is managing a Tanzu environment running on a vSAN Stretched Cluster. A critical Kubernetes pod utilizing a 1 TB CNS Persistent Volume is running on Site-A.
“`
[Storage Policy Rule View – CNS PVC]
Policy: K8s-Stretched-Gold
Site Disaster Tolerance:
Dual site mirroring
Failures to Tolerate: 1 (RAID-1)
CNS Volume ID: pvc-77bb…
“`
A catastrophic power failure takes Site-A completely offline. The Witness and Site-B remain online.
How does the deep integration between CNS, vSAN Stretched Cluster, and vSphere HA orchestrate the recovery of the Kubernetes persistent storage and the pod itself? (Select all that apply.)

The vSAN Distributed Object Manager detects the failure and instantly shifts the “Active” pointer for the FCD components to Site-B, maintaining storage accessibility.

vSphere HA automatically restarts the TKG Worker Node VM (which hosts the pod) on the surviving Site-B hosts.

CNS detects the site failure and automatically edits the Kubernetes manifest to dynamically re-mount the PVC to a different running worker node in Site B.

The Kubernetes Master Node must be manually instructed to perform a kubectl drain on the failed Site-A nodes before storage access is restored.

When the TKG Worker Node VM boots on Site-B, the vSphere CSI driver re-attaches the existing FCD to the worker node, and Kubernetes naturally restarts the pod using the intact data.

QUESTION 43
A SOC Analyst is investigating a failure in a Tanzu environment where newly deployed stateful Pods are remaining in a Pending state. The pods are failing to bind to their Persistent Volume Claims (PVCs). The analyst reviews the vmkernel.log on the ESXi host running the Kubernetes Supervisor Control Plane:
“`
2026-11-25T14:10:05Z INFO vsphere-csi – Received CreateVolume request:
size=50GB, policy=”High- Perf-vSAN”
2026-11-25T14:10:06Z WARN vsan-dom – Storage Policy “High-Perf-vSAN”
violates cluster capabilities. FTT=2 requires 6 fault domains.
Available: 4.
2026-11-25T14:10:06Z ERROR vsphere-csi – CNS CreateVolume failed.
Reason: Datastore lacks sufficient capacity or domains to satisfy SPBM
profile.
2026-11-25T14:10:06Z ERROR k8s-controller – PVC ‘mysql-data-pvc’ failed to provision. Retrying…
“`
Based on the log analysis, which TWO statements describe the root cause and the required remediation? (Choose 2.)

The ESXi host’s vsphere-csi daemon has crashed and must be restarted via the vCenter VAMI interface.

The Kubernetes ClusterRoleBinding lacks the necessary IAM permissions to execute vCenter API calls.

The PVC request of 50GB exceeds the hardcoded limit for First Class Disks (FCD) in vSAN ESA.

The requested StorageClass references an SPBM policy (FTT=2/RAID-6) that is mathematically impossible to fulfill on the current 4-node vSAN cluster.

The analyst must expand the physical vSAN cluster to a minimum of 6 hosts, or modify the SPBM policy to FTT=1, to allow CNS to provision the volume.

QUESTION 44
An L3 Support Engineer is troubleshooting a “Share Capacity Full” alert for an NFS file share hosted on vSAN File Services.
“`
[SDDC Manager – Capacity View]
vSAN Cluster Total Capacity: 100 TB
vSAN Cluster Free Capacity: 40 TB
NFS Share ‘DevOps-Repo’: 5 TB Used (100% Full)
[Share Properties]
Share Quota: 5 TB
Storage Policy: FTT=1 (RAID-1 Mirroring)
“`
Despite 40 TB of free physical space in the cluster, the DevOps team is completely blocked from writing to the share.
What is the operational cause of this blockage, and what is the physical capacity impact of expanding the share? (Choose 2.)

Quotas in vSAN File Services are “Soft Limits” designed for reporting; the actual write blockage is caused by a CMMDS network partition affecting the hosting FSVM.

The engineer must convert the NFS share to SMB to bypass the Linux inode consumption limit that caused the capacity freeze.

Increasing the Quota to 10 TB will actually consume 20 TB of physical NVMe capacity, because the SPBM FTT=1 (RAID-1) policy mirrors every byte of NAS data at the vSAN object layer.

The “Share Quota” is a hard architectural limit applied inside the FSVM; once the files hit 5 TB, the FSVM actively blocks standard NFS writes regardless of underlying vSAN datastore free space.

The blockage is caused by the vSAN DOM component limit; file services cannot expand beyond 5 TB because the single virtual VMDK backing the FSVM has reached its maximum size.

QUESTION 45
A Compliance Auditor is tracking the lifecycle of an encrypted vSAN Stretched Cluster in VCF
9.0. A new ESXi host (esx-09) is commissioned via SDDC Manager and successfully added to the cluster.
“`
[Log Analysis: vsan-crypto_config.log / CMMDS events]
Event 1: Host ‘esx-09’ enters cluster.
Event 2: vCenter detects KMS trust validation required.
Event 3: SDDC Manager issues ‘vsan storage add’ API calls to the host.
Event 4: Host generates internal Data Encryption Keys (DEKs).
Event 5: Disk claiming completes.
“`
How does the deep integration between SDDC Manager, vSAN encryption, and Disk Claiming enforce security when this new host is added to the already-encrypted cluster? (Select all that apply.)

SDDC Manager automatically formats the new disks using VMFS-6 self-encrypting drive (SED) capabilities, bypassing the vSAN software encryption stack.

The new disks are wrapped by the existing cluster-wide KEK; the administrator does NOT need to configure a new KMS policy for the added host.

Before claiming the disks, SDDC Manager validates that esx-09 can communicate with the external KMS cluster configured in the Management Domain to retrieve the Key Encryption Key (KEK).

The local ESXi hypervisor on esx-09 generates unique Disk Encryption Keys (DEKs) locally for every new physical drive, ensuring that device-level keys never leave the host.

SDDC Manager must temporarily disable vSAN Data-in-Transit (DiT) encryption on the entire cluster to allow the new host to perform the unencrypted CMMDS handshake.

QUESTION 46
An Infrastructure Manager is auditing the Storage Policy Based Management (SPBM) behavior for virtual machines running on an HCI Mesh Compute-Only Client cluster.
“`
[root@esx-comp-01:~] esxcli vsan debug object list -u 5543…
Object UUID: 5543… (VM: Database-01)
Policy: FTT=1 (RAID-1), IOPS Limit: 2000
Component 1: ACTIVE (Host: esx-storage-05) -> Remote Server Cluster
Component 2: ACTIVE (Host: esx-storage-06) -> Remote Server Cluster
Witness: ACTIVE (Host: esx-storage-07) -> Remote Server Cluster
“`
How do SPBM rules mechanically enforce storage protection and QoS when the VM compute (esx- comp-01) and storage backend (esx-storage-05/06) exist in completely different physical clusters? (Select all that apply.)

The SPBM engine on the Client host must duplicate the data (2x multiplier) across the network to satisfy the RAID-1 requirement, doubling ISL bandwidth.

The “IOPS Limit” (QoS) rule is strictly enforced by the DOM Client module running on the *Client compute host* (esx-comp-01), throttling the DB I/O before it even hits the network.

If the network between the Client and Server cluster is severed, the VM on esx-comp-01 will continue running in read-only mode using local NVMe cache.

The “Failures to Tolerate” (RAID-1) layout logic is strictly managed by the DOM Owner module on the *Remote Server cluster*, ensuring the components never reside in the same fault domain.

QUESTION 47
An Infrastructure Manager is presenting the 5-year Total Cost of Ownership (TCO) analysis for a new VCF Workload Domain. The comparison pits a vSAN ESA HCI cluster against a traditional SAN array.
“`
[SDDC Manager – Capacity & Scale Comparison]
HCI Topology: 16 Hosts (100% compute/storage utilized)
SAN Topology: 16 Hosts + 1 SAN Array (Storage 100% utilized, Compute 60% utilized)
“`
The business demands an additional 50 TB of storage capacity, but requires ZERO additional compute resources (vCPU/RAM).
Which TWO statements accurately describe the TCO limitations and operational realities for fulfilling this specific expansion requirement in both architectures? (Choose 2.)

Scaling HCI can be economically inefficient in this scenario; adding “compute-heavy” vSAN ReadyNodes just for their drive bays forces the business to pay for unnecessary CPU, RAM, and vSphere host licenses.

vSAN ESA addresses this traditional HCI limitation by automatically offloading the new storage capacity to the physical SAN array through the VASA API.

The traditional SAN architecture completely fails this requirement because external arrays cannot be expanded without adding ESXi host initiators to the fabric.

VCF explicitly prohibits asymmetrical scaling (adding drives to existing hosts) in HCI environments to prevent compute contention, forcing the purchase of new ReadyNodes.

The traditional SAN architecture excels in this scenario, as the manager can simply purchase a DAE (Disk Array Enclosure) with 50 TB of disks without incurring any vSphere compute licensing costs.

QUESTION 48
A CTO is investigating a catastrophic outage. A TKG Worker Node containing several critical database First Class Disks (FCDs) suffered data corruption.
The node was running on a host experiencing high load, and standard VMDK backup routines (via VADP) were disabled to save CPU cycles. The storage team attempted to restore the FCDs using low- level API commands.
The engineer uses vim-cmd to inspect the FCD state:
“`
[root@esx-08:~] vim-cmd vmsvc/get.tasklist
Task: ReconcileFCD_Task
Status: Failed
Error: “VStorageObjectNotFound”
[root@esx-08:~] vim-cmd vmsvc/device.diskaddexisting 20
/vmfs/volumes/vsan/fcd/88b1…
Error: “The disk object requires a CryptoKeyID which was not found in
the current KMS provider.”
“`
How do the concepts of FCD independence and vSAN Encryption interact to create this restoration failure? (Select all that apply.)

First Class Disks (FCDs) retain their SPBM-assigned capabilities (including Encryption Key IDs) independent of the worker node VM.

CNS volumes inherently use “Self-Encrypting Drives” (SEDs) where the FCD keys are stored on the physical NVMe firmware, bypassing the KMS.

Converting the FCD back to a traditional VMDK using standard storage vMotion will strip the encryption and restore access.

The ESXi host lost connection to the Key Management Server (KMS) or the specific Key Encryption Key (KEK) associated with this FCD was rotated and lost.

The FCD cannot be attached to a rescue VM or the original worker node because the hypervisor cannot decrypt the vSAN object without the matching CryptoKeyID.

QUESTION 49
An administrator has been tasked with making changes to a VMware Cloud Foundation (VCF) Workload Domain cluster that is configured with NFS for both Principal storage and Supplemental storage.
The cluster has the following configuration:
* There are 3 x ESX host servers.
* There are 3 x NFS Datastores allocated to host Virtual Machines workloads.
* There is a single NFS Datastore allocated for hosting ISO files.
The administrator has the following concerns with the existing configuration:
* Every time a new Virtual Machine is deployed to the Workload Domain, the administrator must choose which datastore should be used.
* When reviewing the Datastores in VCF Operations:
* One of the datastores has no Virtual Machines running in it.
* The other two datastores have an imbalance of Virtual Machines and this is causing resource contention. The administrator has the following requirements: * Virtual Machines must be placed automatically on the most appropriate datastore based on utilization. * Migration recommendations on Virtual Machine placement should be made when one datastore reaches 50% utilization. * Virtual Machines must only be migrated to another datastore after being approved by an administrator. What four actions must the administrator take to meet all of the requirements? (Choose four.)

Configure the Datastore Cluster to set the Storage DRS storage space threshold to 50%.

Configure the Datastore Cluster to set the Storage DRS storage space utilization difference to 50%.

Create a new Datastore Cluster using all three NFS Datastores allocated to host Virtual Machines workloads.

Configure the Datastore Cluster to use Fully Automated Storage DRS.

Ensure all three NFS Datastores are available to each ESX host server.

Configure the Datastore Cluster to use Manual Storage DRS.

Create a new Datastore Cluster using all four available Datastores.

QUESTION 50
An administrator is tasked with designing a highly available vSAN ESA two-node cluster for a remote VMware Cloud Foundation (VCF) workload domain. The solution should be able to survive the failure of any disk group in addition to a host failure without data loss.
What is the minimum total number of nested fault domains required for the design?

6

4

7

2

QUESTION 51
An administrator is tasked with configuring the vSAN File Service to deliver NFS file shares for an Edge environment.
Which three are required to deliver the service? (Choose three.)

Create a dedicated port group for vSAN File Services in the DVS.

If using an NSX-based network, ensure that MAC Learning is enabled.

MAC Learning and Forged Transmits are disabled.

Jumbo frames are enabled on the network and the DVS port group.

Hosts connected to a DVS version 6.6.0 or later.

vSAN Witness functionality is enabled on each VMkernel.

QUESTION 52
A Compliance Auditor is reviewing the encryption and data-efficiency settings of a large VCF 9.0 environment. The environment contains a legacy VI Workload Domain running vSAN OSA, configured with strict data security and capacity optimization.
“`
[Storage Policy View]
vSAN Cluster: Legacy-OSA-01
Data-at-Rest Encryption: Enabled (KMS Validated)
Deduplication and Compression: Enabled (All-Flash)
“`
End users are complaining that application response times are sluggish during daily data ingestion windows, and vCenter alarms show ESXi CPU utilization at >95%.
How do the advanced data services in the OSA architecture contribute directly to this CPU saturation and resulting DOM congestion? (Select all that apply.)

In OSA, data must be compressed, deduped, and encrypted synchronously in the data path.
Ingesting new data requires the CPU to execute SHA-1 hashing against the massive in-memory hash tables to find duplicates, consuming extreme amounts of CPU cycles.

The integration of Deduplication and Encryption is natively incompatible in OSA; the hypervisor must decrypt the data first, dedup it, and then re-encrypt it, causing a double-tax on the CPU.

Disabling Deduplication and Compression on this specific cluster would immediately relieve the CPU bottleneck, allowing the data to stream to the NVMe drives as raw blocks.

Deduplication hash tables are offloaded to the physical Top-of-Rack switches in VCF, meaning the ESXi CPU is a false indicator of the storage bottleneck.

If the CPU is pegged at 100% processing the Dedup hashes, the storage subsystem slows down, triggering DOM client congestion and causing the VM latency the end users are experiencing.

QUESTION 53
A VCF Architect is designing a hybrid environment. The plan is to stretch a 16-node vSAN cluster across two sites.
The hosts also mount 50 TB of Supplemental Fibre Channel (FC) LUNs to support legacy databases.
“`
[vSAN Performance / Topology View]
Cluster: VCF-Stretched-01
Principal Storage: vSAN Datastore (Dual Site Mirrored)
Supplemental Storage: Legacy-FC-Datastore
“`
How do the vSAN Stretched Cluster prerequisites intersect with the capabilities of the traditional Fibre Channel storage in this unified cluster? (Select all that apply.)

SDDC Manager automatically configures the external FC array for Dual Site Mirroring using the VASA Provider.

While vSAN can tolerate up to 5ms RTT on the Inter-Site Link, the synchronous Fibre Channel stretch requirement is typically much stricter (< 1ms RTT), dictating the lowest common denominator for the ISL network prerequisite.

vSphere HA requires consistent datastore visibility across the cluster; if the FC LUN is NOT stretched (only visible to Site A), vSphere HA will fail to restart the legacy DB VMs on Site B if Site A fails.

vSAN handles the “Site A to Site B” synchronous mirroring natively through the ESXi kernel, independent of the external SAN array.

For the VMs on the FC Datastore to survive a site failure, the underlying physical FC array must also support a native synchronous array-stretching feature (e.g., SRDF/Metro) with Active/Active presentation to both sites.

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NEW 2026 Certification Sample Questions 3V0-23.25 Dumps & Practice Exam [Q33-Q53]

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