3V0-25.25: Advanced VMware Cloud Foundation 9.0 Networking

By Broadcom · Browse Mode
About the Exam

Advanced-level VCAP exam for administrators responsible for networking in VMware Cloud Foundation 9.0 environments. It covers deploying, configuring, managing and troubleshooting VCF networking, including NSX segments, gateways, routing, security policy and network services. Passing demonstrates hands-on competence with VCF networking beyond the associate level.

Exam Topics

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Last updated August 10, 2026 at 7:16 PM

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QuestionQ1

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An administrator has a vSphere 8.0 environment that is not presently running NSX.

How can the administrator converge this vSphere 8 environment into a VMware Cloud Foundation (VCF) management domain?

Explanation

To create a new VCF instance by converging an existing vSphere environment into its management domain, use the VCF Installer after upgrading the vSphere environment to the required vSphere 9.0 level. When NSX is not already deployed, the convergence process deploys the required NSX component. A standalone manual installation of NSX 9.x is supported only as part of a VCF 9.x installation, not as a separate prerequisite.

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QuestionQ2

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A cloud service provider operates VPCs with varying traffic patterns:

  • Some VPCs produce high-volume North/South flows.
  • Most VPCs generate very little traffic.

The architect must optimize Edge dataplane resource consumption while ensuring noisy VPCs do not affect others.

Which optimization meets the requirement?

Explanation

Separate Edge clusters can be assigned to VRF-backed VPCs based on their traffic profiles. This contains high-volume north/south traffic within appropriately sized Edge resources, preventing those VPCs from consuming the shared dataplane capacity needed by low-traffic VPCs while preserving tenant routing isolation.

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QuestionQ3

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Which component receives network connectivity from the hyperbus interface (vmk50)?

Explanation

In NSX, the vmk50 HyperBus interface is created during host preparation to provide network connectivity for virtual machines and containers running across transport nodes.

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QuestionQ4

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An administrator is investigating why workloads in NSX are unable to reach the external network 10.100.0.0/16.

The Tier-0 Gateway operates in Active/Active mode and has this configuration:

  • Uplink-1 (VLAN 100): 192.168.100.0/24 → router R1 at 192.168.100.1
  • Uplink-2 (VLAN 101): 192.168.101.0/24 → router R2 at 192.168.101.1

A static route for 10.100.0.0/16 was configured with both next hops (192.168.100.1 and 192.168.101.1).

The Scope for this route is set to Uplink-1.

Symptoms:

  • Virtual Machines (VMs) cannot reach 10.100.0.0/16.
  • A traceroute from the VM ends at the Tier-0 gateway with "Destination Net Unreachable."
  • Pings from the Edge nodes to both 192.168.100.1 and 192.168.101.1 succeed.

What accounts for the NSX workloads being unable to reach the external network?

Explanation

A static-route next hop must be scoped to the interface or segment that can reach it. 192.168.101.1 belongs to VLAN 101 on Uplink-2, but the route is scoped only to Uplink-1. The two next hops must be associated with their respective uplinks (or configured as appropriate separate scoped routes), so limiting the scope to Uplink-1 leaves the VLAN 101 next hop incorrectly scoped.

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QuestionQ5

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NSX Manager displays the following open alarm:

Remote Logging Not Configured

The administrator has confirmed that remote logging is enabled on the NSX Manager and NSX Edge nodes. However, the alarm remains open in NSX Manager.

Which statement explains why the Remote Logging Not Configured alarm is still open?

Explanation

Remote logging must be configured for ESX nodes as well as NSX Manager and NSX Edge nodes. If one or more ESX nodes are not forwarding log messages to a remote logging server, the Remote Logging Not Configured alarm remains open.

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