VMware Advanced VMware Cloud Foundation 9.0 Storage 3V0-23.25 Exam Dumps: Updated Questions & Answers (July 2026)

The two most relevant causes are insufficient vCenter permissions and incorrect DNS resolution. The VMware Live Recovery appliance must register with vCenter as a managed extension and service endpoint, so the account used during the Configure Appliance workflow must have the required vCenter privileges. A user that can authenticate but lacks registration or administration privileges can still cause the appliance registration to fail. DNS is equally critical because appliance registration depends on stable FQDN resolution, certificate validation, Lookup Service communication, and service endpoint registration. Forward and reverse DNS records must resolve correctly between the VMware Live Recovery appliance and vCenter Server. Deploying the appliance to a non-vSAN datastore is not the primary reason for vCenter registration failure. DHCP is not inherently invalid if the resulting address and DNS records are correct, though static addressing is usually preferred. A local Photon OS account on the VCSA is not the correct account type, but the direct technical issue is the lack of required vCenter permissions. Reference topics: vSAN Data Protection, VMware Live Recovery Appliance Registration, vCenter Permissions, DNS Forward and Reverse Resolution.

Option B satisfies every requirement because it separates management and workload storage onto dedicated Fibre Channel-backed VMFS datastores while relying on array-based encryption at rest. This avoids VMware native encryption and vSAN-specific encryption mechanisms, matching the regulatory requirement. Fibre Channel is a supported non-vSAN storage architecture for VCF and provides enterprise block storage with multipathing, LUN masking, zoning, and consistent datastore presentation. SPBM storage policies allow storage placement and compliance to align with array and LUN characteristics, supporting automated placement and operational consistency. For scalable file-based workloads, NFS v4.1 is appropriate as supplemental file storage, and Kerberos privacy mode provides authentication, integrity, and encryption in transit for NFS traffic. Restricting cross-domain datastore access preserves strict management/workload segregation. Option A does not properly address file workload scaling or NFS encryption. Option C violates the requirement for array-based encryption by using VMware VM encryption. Option D violates segregation by sharing one NAS platform across domains and relies on application-level encryption instead of the mandated storage architecture. Reference topics: Fibre Channel Storage Model, SPBM, Array-Based Encryption, NFS v4.1 Kerberos, Workload Domain Storage Segregation.

The user account used by the application.

The Active Directory used by the application.

The password used by the application.

NFSv4.1 with Kerberos requires identity integration through Active Directory and a valid Kerberos-capable user credential. In vSphere, Kerberos authentication for NFS 4.1 uses Active Directory credentials so ESX can authenticate securely when mounting Kerberos-protected NFS datastores. The required inputs are the Active Directory domain, the user account, and the password associated with that account. The storage guide also states that when several ESX hosts access the same NFS 4.1 datastore, all hosts must use the same Active Directory credentials to ensure consistent access. The Organizational Unit is not the required credential element for datastore mounting. The DNS name of a Kerberos server may be resolved through Active Directory and DNS infrastructure, but it is not one of the required configuration values selected here. A “Kerberos Key Management Server” is not part of the vSphere NFSv4.1 Kerberos datastore configuration model. Therefore, the required options are the application’s user account, its Active Directory, and the account password. Reference topics: NFSv4.1 Datastores, Kerberos Authentication, Active Directory Credentials, Kerberos Security for NFS.

The available custom recovery steps are top-level commands, message prompts, and per-machine commands. VMware Live Site Recovery recovery plans operate like automated runbooks, and administrators can insert custom steps to match business continuity requirements. Broadcom TechDocs states that custom recovery steps can run commands or present messages to the user during a recovery. Command recovery steps are divided into two categories: top-level commands and per-virtual-machine commands. Top-level commands are inserted directly into the recovery plan and run on the VMware Live Site Recovery server. Per-machine commands are associated with individual recovered VMs and run before or after that VM is powered on, depending on placement in the workflow. Message prompts are interactive steps that pause the plan until an operator acknowledges the message, making them useful for manual validation, external approvals, or runbook checkpoints. IP reconfiguration is handled through recovery plan networking and guest customization, not as a custom step type. Writable storage snapshots are part of test recovery/storage behavior, not a custom recovery step. Reference topics: VMware Live Site Recovery Recovery Plans, Creating Custom Recovery Steps, Top-Level Commands, Message Prompts, Per-VM Commands.

Full Clone from Volume Snapshot

4kn Support

Online Volume Expansion

Offline Volume Expansion

Static Persistent Volume

VMware Kubernetes Service persistent volumes use vSphere storage integrations such as CNS and pvCSI to provide Kubernetes storage services backed by vSphere datastores and storage policies. The supported persistent volume capabilities include Static Persistent Volume, which allows pre-existing storage to be consumed by Kubernetes workloads; Offline Volume Expansion and Online Volume Expansion, which allow persistent volumes to be resized depending on workload and filesystem state; Full Clone from Volume Snapshot, which enables a new volume to be created from an existing snapshot; and 4kn Support, which supports modern 4K native storage devices where the underlying stack supports them. Storage vMotion with attached Persistent Volumes is not supported because moving an attached Kubernetes persistent volume while it is in active use can break attachment and consistency assumptions. Storage DRS is also not a supported persistent volume capability in this VKS context. Flash Read Cache is not part of the supported VKS persistent-volume capability set. Reference topics: VMware Kubernetes Service Storage, CNS, pvCSI, Persistent Volume Capabilities, Volume Expansion, Volume Snapshot Clone.

High latency in a vSAN cluster is commonly caused by congestion in the backend storage path. Disk group congestion means vSAN is queuing, delaying, or throttling I/O because one or more disk groups cannot service the workload at the required rate. VCF Operations and vSAN performance views expose disk group and device-level congestion indicators, including IOPS congestion, log congestion, component congestion, memory congestion, and SSD congestion. These metrics directly correlate with elevated latency because the virtual machine I/O path must wait for vSAN backend processing to complete. PVSCSI controllers are normally recommended for high-performance virtual disks and are not a typical cause of vSAN latency. Jumbo frames, when consistently configured end-to-end, are a valid network optimization and do not inherently cause latency. Disabled erasure coding would usually reduce parity overhead, not create backend latency. Therefore, disk group congestion is the most likely explanation for high latency shown in the vSAN cluster performance charts. Reference topics: vSAN Performance Service, Disk Group Metrics, Congestion Metrics, vSAN Latency Troubleshooting.

In vSAN ESA, the observed three disk stripes are expected behavior for objects using RAID-1, even when the storage policy shows “Number of disk stripes per object = 1.” The vSAN policy rule defines the minimum number of capacity devices across which each replica of an object is striped, and the default value is 1. However, VMware documentation explicitly notes that objects in a vSAN ESA cluster with RAID-0 or RAID-1 configuration have 3 disk stripes, even if the default storage policy defines only 1 disk stripe. Therefore, the three stripes are not caused by site mirroring itself, nor by the VM having three objects. Site mirroring controls placement across the preferred and secondary sites in a stretched cluster, while Failures to tolerate with RAID-1 controls local host/device protection. The behavior is also not evidence that a VM-level policy override exists. The datastore-level policy can still be applied correctly; ESA’s internal RAID-1 object layout uses three stripes as part of its optimized storage architecture. Reference topics: vSAN ESA Default Storage Policy Characteristics, Number of Disk Stripes per Object, RAID-1 Mirroring, vSAN Stretched Cluster Storage Policies.

A vSAN Stretched Cluster requires both compute placement control and storage placement control. To place virtual machines in the appropriate site, the administrator must create VM/Host groups for the two sites. This allows DRS to understand which hosts belong to the preferred site and which hosts belong to the secondary site, and it allows VM-to-host affinity rules to be created for initial and ongoing placement. The administrator must also create a storage policy for each site or site placement requirement. vSAN stretched-cluster storage policies control site disaster tolerance and data locality, including whether objects are mirrored across sites or kept on the preferred or secondary site. VM folders do not control runtime or storage placement. A VM/Host group “across the two sites” is not correct because site separation must be explicitly modeled. Simply placing a VM into a DRS group is not enough unless the site groups and policies already exist. Reference topics: vSAN Stretched Cluster Design Considerations, DRS Host Groups, VM Groups, VM-Host Rules, vSAN Storage Policy Site Locality.

The minimum total number of nested fault domains is six. In a two-node vSAN design, site disaster tolerance is provided through host mirroring between the two data hosts, with a witness maintaining quorum. The requirement adds another layer: the solution must also survive a disk group or local storage failure in addition to a host failure. vSAN’s two-node host mirroring rule states that each data host must have at least three disk groups, or three disks in a storage pool, to use the rule. In ESA, the equivalent construct is disks in the storage pool rather than OSA-style disk groups. Because there are two data hosts, and each data host requires three nested placement units, the minimum total is 3 + 3 = 6 nested fault domains. Four would not meet the host-mirroring rule requirement, and two would only represent the two hosts without local storage fault isolation. Reference topics: vSAN Two-Node Cluster, Host Mirroring, Nested Fault Domains, vSAN ESA Storage Pool Placement.

vSAN object availability is based on two conditions: an intact replica must be available, and more than 50% of the object’s votes must be accessible. In this scenario, vSAN can locate a full replica and 55% of the votes for the noncompliant objects. Because 55% is greater than the quorum threshold, the objects remain available to the vSAN datastore. A noncompliant status means the VM objects do not currently satisfy the assigned storage policy, but it does not automatically mean the VM is inaccessible. The documentation states that if the operational state remains healthy although the object is noncompliant, the virtual machine can continue using the vSAN datastore. If the cluster contains enough resources and the failure is permanent, vSAN automatically recovers failed components and restores compliance. The VM is marked inaccessible only when a full replica cannot be located or when 50% or fewer votes are available. It becomes orphaned only if the VM namespace, such as the .vmx file, cannot be accessed. Reference topics: vSAN Object Health, Quorum Votes, Noncompliant Objects, Inaccessible and Orphaned VM States.