2V0-15.25 Exam Questions & Answers

When troubleshooting NSX on an ESXi host, VMware requires verification that NSX VIBs (vSphere Installation Bundles) are installed and in the correct state. VIBs are responsible for NSX datapath, control-plane modules, and kernel extensions on ESXi. The authoritative and documented method to list VIBs on an ESXi host is the command:

esxcli software vib list

This command displays all installed kernel modules, version numbers, NSX packages, and their installation status. For NSX-T (now part of VCF networking), administrators expect to see VIBs such as nsx-aggservice, nsx-bridge, nsx-esx-datapath, and others. If any required NSX VIBs are missing or inconsistent, the ESXi host will fail to join NSX transport nodes or will show ''Not Ready.''

Option A (esxtop) is for performance monitoring and does not show VIB information. Option C (nsxcli get version) checks NSX version on Edge Nodes or host transport nodes but does not list VIBs. Option D (esxcfg software list) is an outdated and invalid command.

In vSAN Express Storage Architecture (ESA), Auto-Policy Management determines which default storage policies can be used based on the number of hosts in the cluster. RAID-5 and RAID-6 policies require a minimum number of hosts to satisfy fault domain and component placement rules.

For vSAN ESA, the minimum hosts required are:

RAID-1 (FTT=1) minimum 3 hosts

RAID-5 (FTT=1) minimum 4 hosts

RAID-6 (FTT=2) minimum 6 hosts

In this scenario, the administrator deployed a three-host ESA cluster. Since RAID-5 requires at least four ESA-capable hosts, vSAN Auto-Policy Management automatically falls back to RAID-1, the highest level of resilience possible with the available cluster size. This results in significantly higher storage consumption, which matches exactly what the administrator observed.

Option A is incorrect because RAID-5 is fully supported on ESA---but only with enough hosts. Option C (Force Provisioning) does not change the default policy selected. Option D (Host Rebuild Reserve) does not control RAID policy selection.

In VCF 9.0, when deploying VCF Automation using the VCF Installer in a Simple Deployment Model, the appliance requires two IP addresses:

Primary IP -- Management interface

Secondary IP -- Required for service separation and internal routing for Automation services

VMware's JSON schema for VCF Installer enforces this requirement. If the second IP is missing, incorrectly formatted, or placed under the wrong JSON section, the installer validation will fail immediately with a JSON schema error before deployment begins.

This is one of the most common causes of validation failure for VCF Automation deployment.

Option A (component binaries missing) produces a bundle download error, not JSON schema failure. Option C (NSX Manager size = large) is allowed and does not break JSON validation. Option D (separate vDS for vSAN) is allowed if defined correctly and also does not cause JSON schema failure.

When deploying a new workload domain in VMware Cloud Foundation (VCF), only ESXi hosts that fully meet all pre-requisites are displayed in the VCF Operations UI for selection. Although all six hosts appear in the Unassigned Host Inventory in vCenter, VCF performs additional validation before making them selectable for workload domain deployment.

One of the mandatory requirements for any vSAN-enabled workload domain is that the ESXi hosts must be associated with a Network Pool configured for vSAN traffic. A network pool defines the host network configuration (VLANs, MTU, NIC mapping) used during domain deployment.

If the two missing hosts are associated with a network pool that does not have vSAN traffic enabled, or are associated with no network pool at all, VCF will exclude them from the workload domain deployment wizard. This is documented behavior: VCF filters out hosts when required network intents---such as vSAN---are not present.

Other options are incorrect:

A . Management port group enabled for vSAN traffic --- vSAN should never run on the management PG.

B . FTT setting --- Has no effect on host visibility; applies only after deployment.

C . Disk partitions --- Affects vSAN disk claim but does not prevent host selection in VCF.

In VMware Cloud Foundation 9.0, password changes made manually on an NSX Edge Transport Node are not automatically synchronized with VCF Operations. VCF Operations maintains secure credential records for all managed components, including NSX Manager appliances and NSX Edge Transport Nodes. When credentials become stale---such as after a password expiration and manual reset---VCF Operations marks the credential object as out of sync and requires administrative remediation.

The official workflow described in VCF 9.0 Operations documentation states that administrators must use the ''Remediate Password'' function whenever a password was changed outside of VCF Operations, ensuring that the platform revalidates and updates the stored credentials used for monitoring, log collection, and automation tasks. Options such as ''rotate,'' ''sync,'' or ''update'' do not apply because rotation implies generating a new password managed by VCF, and ''sync'' does not overwrite the stored credential. Only remediation forces VCF Operations to re-validate and align credentials with the external system.

Therefore, after manually resetting the NSX Edge admin password, the administrator must perform password remediation in VCF Operations to restore operational consistency, making B the correct and verified answer.