2V0-15.25 Exam Dumps - VMware Professional Level Exams Questions and Answers

Application Monitoring in VCF Operations uses Telegraf agents running inside virtual machines. These agents forward metrics to theCloud Proxy, which then sends them to the Operations analytics cluster. One of the most common reasons an agent stops reporting data—especially exactly24 hoursafter deployment—isclock drift or time mismatchbetween the VM (running the Telegraf agent) and the Cloud Proxy.

VCF Operations enforcesstrict timestamp validation. If the timestamps from the agent are outside the acceptable drift window, the Cloud Proxyrejectsincoming data as invalid. In this case, the Telegraf agents appear installed and functional, but no new metrics are received by the analytics engine.

This is a well-known issue documented in VMware Aria/VCF Operations agent-based monitoring, where:

Agents send metrics with local system time.

Cloud Proxy enforces time validation to prevent corrupt metric ingestion.

A drift >5 minutes commonly results inzero data collectiondespite healthy connectivity.

Options B and C cannot stop data flow after exactly 24 hours; they would preventinitialcollection. Option D (virtual hardware/tools compatibility) affects VM operations butnotTelegraf metric time-stamp validation.

The status"Node Not Ready"in the NSX Manager UI (specifically in theConfiguration Statecolumn of the Edge Transport Nodes view) indicates that the NSX Manager has failed to push or validate the necessary configuration to the Edge VM.

Check Uplink Network Configuration (Option C):This is the most common cause for a "Node Not Ready" state during deployment or operation. For an Edge Node to be "Ready" (Success/Up), it must have a validTransport Nodeconfiguration, which includes theUplink Profile,IP Pool(for TEPs), and mapping to theFastpath Interfaces(N-VDS). If the uplink configuration is missing, incorrect, or the management plane cannot communicate with the edge to apply it, the node remains in a "Not Ready" state.

Why not Option A?While an Edge must be in anEdge Clusterto beutilizedby a Tier-0 Gateway, a standalone Edge Node should still report a status of "Success" (Configuration) and "Up" (Node Status) if it is healthy. Adding a "Not Ready" (unhealthy/unconfigured) node to a cluster will not fix the underlying configuration issue.

Why not Option D?Missing CPU reservations typically lead to a"Degraded"status or service crashes (Dataplane down), but "Node Not Ready" is the specific indicator of an incomplete or stalled configuration workflow, usually tied to the transport/uplink setup.

TheGlobal Inventory List (GIL)is only available whenmulti-vCenter SSO domain linkingis configured. In VMware Cloud Foundation, themanagement domain vCenteris deployed first and becomes theroot vCenterfor global inventory data. For workload domains, their vCenter Servers must beregistered into the same SSO domainandlinkedwith the management-domain vCenter in order for the global inventory data (VMs, hosts, clusters, content libraries) to appear.

If a workload domain vCenter is not SSO-linked, it operates in its own identity domain, and thereforecannot access or present Global Inventory, resulting in exactly the symptom described: the management domain vCenter shows the GIL, while the workload domain vCenter does not.

Option B (Supervisor Management) relates to vSphere with Tanzu and has no impact on Global Inventory.

Option C (inventory sync) is incorrect—there is no manual sync required; GIL relies entirely on SSO linking.

Option D (VIDB) is not related to vCenter linking or inventory visibility; it is used by VCF Identity Broker.

Therefore, the reason the Global Inventory is missing from the workload domain vCenter is thatSSO/vCenter Linking has not been configured, which is required for federation across all VCF vCenters.

In VMware Cloud Foundation 9.0 Operations,tags created inside VCF Operations do not automatically appear in vCenter. Tags must be explicitly synchronized ("pushed") to the selected vCenter instance before they become usable for VM tagging within vCenter. This is because VCF Operations maintains its own metadata store for tags, super metrics, groups, and policies.

The correct workflow is:

Create the tag in VCF Operations.

Push (synchronize) the tag to the appropriate vCenter instance.

The tag then appears in vCenter’sTags & Custom Attributessection.

Administrators can then assign the tag to VMs.

If the push step is skipped, the tag exists only inside VCF Operations and cannot be referenced by vCenter, which is exactly the symptom described:tag not found when attempting to assign it to a VM.

Option A is incorrect because Custom Groups do not affect vCenter tag visibility.

Option B is incorrect because tag synchronization is not tied to a specific vCenter version as long as the vCenter is officially supported by VCF 9.x.

Option D is irrelevant—VMware Tools has nothing to do with tag visibility.

In VMware Cloud Foundation (VCF) Automation, eachAutomation Regionmust be associated with adedicated NSX Local Manager. A single NSX Local Manager instancecannot be reused across multiple Automation Regions.

In the provided scenario:

The existing environment hasWLD1andWLD2, both sharingone NSX Local Manager.

Region-1 in VCF Automation already consumes this shared NSX Local Manager.

When creatingRegion-2, the interface shows“No results”when selecting an NSX Local Manager.

This behavior matches documented VCF Automation constraints:an NSX Local Manager can only be mapped to a single Automation Region. Once it is consumed by one region, it isnot availablefor any additional region.

To create a second region (Region-2), anew NSX Local Manager instancemust exist in the environment. The only supported method to obtain a new NSX Local Manager is todeploy a new workload domain, because NSX Local Manager is deployed as part of every VI Workload Domain.

Thus, the administrator mustdeploy a new (third) workload domain, which includes its own NSX Local Manager package, allowing Region-2 to be created successfully.

When upgrading fromVCF 5.0 to VCF 9.0, the upgrade workflow requires that theSDDC Manager be upgraded firstbefore any other component bundles (vCenter, ESX, NSX) become visible. This is explicitly stated in the VMware Cloud Foundation upgrade process:the upgrade bundles for the management domain components are dependent on the SDDC Manager version. The online depot will not present the 9.0 upgrade bundles for vCenter, ESX, or NSX until the SDDC Manager itself has reached the target major version (in this case, 9.0).

This is because SDDC Manager contains the updatedLifecycle Management (LCM)engine and updatedbundle manifests, which are required to understand, download, and orchestrate the remaining component upgrades. Attempting to download the other bundles without upgrading SDDC Manager first is not supported.

Options B and D (download tools) are incorrect because the issue isnot that the bundles are missing from the depot, but that SDDC Manager 5.x cannot interpret 9.0 component bundles. Option C (upgrade to 5.2 first) is also incorrect because the VCF 5.x → 9.x upgrade path is directly managed by the upgrade planner once SDDC Manager is upgraded.

Thus, the correct resolution is toupgrade the SDDC Manager to 9.0, after which the remaining component bundles will become available.

To diagnose and resolve the intermittent performance and connection drop issues with the supplemental iSCSI storage, the administrator should focus on network layer consistency and health, particularly regarding packet size (MTU) and delivery (TCP).

Examine the iSCSI VMkernel port for TCP retransmissions (Action B - Diagnose):"Intermittent" connection drops and slow I/O are classic symptoms of packet loss or fragmentation issues. By examining the ESXi network stats (e.g., using esxtop key n or viewing vSphere performance charts) forTCP retransmissions, the administrator can confirm if packets are being dropped or lost in transit.Checksum offload errorscan also indicate issues where the NIC hardware is incorrectly validating packets, causing the OS to drop them. This step identifies theroot cause(packet loss/corruption).

Ensure all ESX hosts have the VMkernel port MTU set to 9000 (Action E - Resolve):For high-performance storage traffic like iSCSI in a VMware Cloud Foundation environment, it is best practice to useJumbo Frames (MTU 9000)end-to-end (Host -> Switch -> Storage Array).

The symptom thatsomehosts are affected suggestsconfiguration driftwhere those specific hosts might be set to a different MTU (e.g., 1500) or are mismatched with the physical network/target (which is likely set to 9000 for performance).

An MTU mismatch (e.g., Target sending 9000-byte frames to a Host/Switch expecting 1500) typically results in the "Do Not Fragment" (DF) bit causing packet drops, leading to the reported connection drops and retransmission delays. Ensuring a consistent MTU of 9000 across the fleet resolves this and aligns with VCF performance standards.

Note: Option A (CHAP) is for authentication security, not performance. Option C (Update network plugin) is a lifecycle task but less likely to be the immediate fix for "some hosts" having intermittent drops compared to the common issue of MTU mismatch. Option D (MTU 1500) would resolve drops if the physical network doesn't support Jumbo Frames, but would degrade performance, making E the preferred resolution for a "performance" storage tier.

In VMware Cloud Foundation (VCF) Automation for All Apps, avSphere Namespacecan span multipleSupervisor Zones. However, workloads—including catalog item deployments—canonlybe deployed into zones that are explicitlyassigned to that Namespace. The user in the scenario successfully deploys intozone1andzone2, which confirms that those zones are correctly associated with the Namespace.

The failure to deploy intozone3, while deployments into the other zones work, strongly indicates thatzone3 is not part of the Namespace configuration.

This behavior matches how Supervisor Zones function:

A zone must beadded to the Namespacein Supervisor configuration.

If the zone is not associated,VCF Automation will not present it as an eligible deployment location, and deployment into that zone fails.

Option A and D (project roles) are incorrect because insufficient permissions would prevent deploymentinto any zone, not a single missing zone.

Option B (Namespace Class) is irrelevant because Namespace Classes define resource limits, not which Supervisor Zones the Namespace is mapped to.

When anNSX Adminaccount becomes locked in NSX Manager, this occurs due to failed login attempts exceeding the lockout threshold for either:

CLI access,

API access, or

UI login, which is tied to API authentication.

Once locked, the only supported method to recover the NSX admin account is tolog in to the NSX Manager console as the root userand manually clear the lockout counters. This is documented in NSX Manager password-recovery procedures and is the standard administrative recovery action.

The root console provides access to:

clear account-lockout admin

or the equivalent reset methods within NSX Manager.

Why the other options are incorrect:

A. SSH into NSX Manager as AdminImpossible — the admin account is locked and cannot be used to SSH.

B. Change password age policy in vCenterNSX Manager accounts arenotgoverned by vCenter password policy.

C. Rotate admin password in SDDC ManagerSDDC Manager rotates NSX passwords when unlocked; it cannot unlock a locked account.

When replacing certificates in VMware Cloud Foundation (VCF) Operations, the system performs strict certificate chain validation. The error shown:

“Certificate chain validation failed due to 'Signature does not match’”

indicates that VCF Operations attempted to validate the presented certificate chain but detected that the server certificate did not correctly match the signing CA certificate. This occursmost commonly when the administrator pastes the server certificate and CA root/intermediate certificates into the wrong fields during import.

VCF requires the certificate bundle to be uploaded in the correct format:

Server certificate→ Server Certificate field

Intermediate certificates→ Intermediate Chain field

Root certificate→ Root CA field

If the chain order is wrong or the server certificate is mistakenly placed in an intermediate or root CA field, the cryptographic signature validation fails. This exact failure mode is documented in VMware certificate replacement workflows.

Option A is incorrect because including an IP address in a CSR does not invalidate chain signatures.

Option B is incorrect because an untrusted CA produces atrustfailure, not asignature mismatch.

Option C is unrelated: accessibility is not required for certificate validation.