2V0-15.25 Dumps with Practice Exam Questions Answers

In VMware Cloud Foundation (VCF) 9.0 Automation, the visibility of debug-level information in Task Logs is controlled centrally by theProvider Administratorthrough theProvider Management portal. Debug logging is not enabled by default because it exposes verbose operational details intended primarily for troubleshooting. According to the VCF Automation architecture and operations model, advanced logging capabilities—including debug output—are gated behindfeature flags.

To enable debug-level information, the Provider Admin must navigate to:

Provider Management → Administration → Feature Flags → Display Debug Information

Once this flag is enabled, the system begins emitting additional diagnostic detail into Task Logs, improving insight into failures, orchestration flows, API calls, and service-to-service interactions. This aligns with VCF’s multi-tenant design, where only the Provider tier has permission to modify global settings that affect all Organizations.

Options A, C, and D are incorrect because Organization-level settings do not control system-wide logging, and the Events/Tasks or General Settings sections do not contain the mechanism for enabling debug output. Only theFeature Flagsection controls this capability.

vSphere High Availability (HA) depends on theFDM agent(Fault Domain Manager) that runs on every ESXi host in the cluster. When an administrator enables HA on a cluster, vCenter automatically installs or updates thevmware-fdm VIBon each participating ESXi host. This VIB contains the HA agent binaries and is mandatory for HA services to start.

The error encountered:

"A general system error occurred: Failed to start fdm service on host"

is a classic and well-documented symptom of amissing or corrupted vmware-fdm VIB. When vSphere HA is toggled off and on, vCenter attempts to reinstall or restart the FDM agent; if the VIB is not present, HA cannot deploy successfully, and the FDM service fails to start.

Why the other answers are incorrect:

A. The vmware-fdm service is disabledESXi does not allow manual disabling of this system service in normal operations. If the service fails to start, the root cause is usually the absence or corruption of the VIB—not a disabled service.

C. Admission Control settings not configured correctlyAdmission Control errors affectVM failover capacity, not the ability to start FDM services.

D. HA startup policy not configured correctlyThere isno per-host HA startup policythat prevents FDM from starting.

In avSAN Stretched Cluster, communication between thewitness nodeanddata nodesrequires several specific TCP/UDP ports. The ability to successfully execute:

vmkping -I -s 1472 -d

confirms that:

L2/L3 connectivity is present

MTU is correctly configured

ICMP traffic flows without fragmentation

However,vmkping alone does not verify vSAN control-plane communication.

For the vSAN Witness to properly form a cluster,TCP port 12321must be openbidirectionallybetween:

Witness → Data nodes

Data nodes → Witness

Port12321is required for:

vSAN cluster membership

Witness traffic

vSAN object health/state synchronization

If this port is blocked by firewall policy or misconfigured network ACLs, the nodes can ping each other, butvSAN witness traffic will fail, preventing the stretched cluster from forming.

Why the other options are incorrect:

B. Port 443— Required for management, not cluster formation.

C. No VMs in cluster— Hasno impacton witness formation.

D. Jumbo frames not enabled— Already ruled out by the successful 1472-byte vmkping with DF bit.

VMware Cloud Foundation 9.0 introduces a major architectural redesign that replaces the traditional SDDC Manager–centric domain management model with aunified Fleet Management architectureimplemented throughVCF Operations Fleet Manager. In this model, each Workload Domain operates withits own vCenter, but Enhanced Linked Mode (ELM) isremovedto improve isolation, reduce blast radius, and support multi-site scalability. As a result, administrators logged into the vSphere Client of the Management Domaincan no longer manage or expand clusters in other Workload Domains, which explains why the vSphere UI blocks the attempted expansion of WLD-02.

Fleet Manager becomes the new authoritative control plane for lifecycle, topology, host commissioning, and workload domain expansion. Only Fleet Manager maintains the fullglobal viewnecessary to orchestrate cluster addition operations across distributed vCenters and domains. Because WLD-02 is running VCF 9.0 and is fully fleet-aware, its expansion must occur throughVCF Operations Fleet Manager, not through the vSphere Client or legacy SDDC Manager workflows.

Options involving WLD-03 are invalid since that domain is running VCF 5.2.1, is isolated, and cannot participate in fleet-aware operations. SDDC Manager (A) is no longer the correct interface for VCF 9.0 domain expansion operations.

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.