Practice Free 2V0-18.25 Exam Online Questions
You are troubleshooting the upgrade of a VVF environment. The SDDC Manager pre-check fails for a specific workload domain.
What common issues could cause this pre-check failure? (Choose two.)
- A . One or more ESXi hosts in the cluster are in Maintenance Mode.
- B . There is insufficient free space on the vCenter Server appliance root partition.
- C . The VMs in the cluster are running outdated VMware Tools.
- D . The vSAN health checks are showing a completely green/healthy status.
A, B
Explanation:
Pre-checks validate the readiness of the environment for an upgrade. Hosts left in Maintenance Mode or lacking disk space on critical appliances like vCenter or NSX Manager are common reasons for pre-check failures.
You are troubleshooting the initial deployment of a VMware vSphere Foundation (VVF) 9.0 solution. The deployment fails during the ESXi host bring-up phase.
Which log file should you primarily investigate to identify the root cause?
- A . /var/log/vpxa.log
- B . /var/log/cloudbuilder.log
- C . /var/log/esxupdate.log
- D . /var/log/vmkernel.log
B
Explanation:
During the initial deployment of VVF/VCF, the Cloud Builder appliance orchestrates the bring-up process. The cloudbuilder.log is the primary log file to review when troubleshooting deployment failures at this stage.
You are configuring VCF Operations for Logs to monitor a VVF environment. You want to ensure that log data is not lost if the primary log ingestion node goes offline.
What architectural feature should you implement?
- A . Deploy an Integrated Load Balancer (ILB) across a cluster of VCF Operations for Logs nodes.
- B . Configure vSphere Fault Tolerance for the log appliance.
- C . Use a generic third-party proxy server.
- D . Store logs on a USB drive.
A
Explanation:
For high availability and load balancing of syslog ingestion in VCF Operations for Logs, deploying a cluster of nodes and configuring the built-in Integrated Load Balancer (ILB) ensures that if one node fails, logs are automatically routed to the surviving nodes.
A customer reports that a specific feature within VCF Operations is disabled. Upon investigation, you suspect a licensing issue.
Which components’ licenses should be verified? (Choose two.)
- A . The VVF core license applied in SDDC Manager.
- B . The vSAN add-on license.
- C . The individual VCF Operations license key.
- D . The NSX Edge license key.
A, C
Explanation:
To use advanced features in VCF Operations, both the core VVF license (which grants base entitlements) and any specific VCF Operations advanced/enterprise license keys must be valid and correctly applied.
During the import of an existing vSphere environment into a VVF 9.0 instance, the validation fails.
What are valid reasons for a cluster import validation to fail? (Choose two.)
- A . The cluster contains ESXi hosts with different versions.
- B . The cluster does not have vSphere HA enabled.
- C . The cluster has existing vSphere Standard Switches (VSS) configured for management network.
- D . The cluster has DRS disabled.
A, D
Explanation:
When importing a cluster into VCF/VVF, it must meet specific standardization requirements. ESXi hosts must be on the same version, and features like vSphere DRS and HA must be enabled for VCF to manage the workload placement and lifecycle properly.
During the import of an existing vSphere cluster into VVF 9.0, the process fails because one of the ESXi hosts has an active third-party vSwitch installed.
How should you resolve this? (Choose two.)
- A . Ignore the warning and force the import via API.
- B . Migrate all networking on that host to a standard vSphere Distributed Switch (VDS).
- C . Uninstall the third-party vSwitch from the ESXi host.
- D . Add a special license key for third-party switches in SDDC Manager.
B, C
Explanation:
VVF strictly relies on the native vSphere Distributed Switch (VDS) and NSX for networking. Third-party vSwitches (like Cisco Nexus 1000v, which are deprecated anyway) are not supported in VVF and must be removed, and the network migrated to native VMware constructs before import.
A custom workflow in VCF Operations Orchestrator interacts with a third-party REST API but keeps failing with authentication errors.
What are the best ways to troubleshoot this? (Choose two.)
- A . Verify the credentials configured in the HTTP-REST plug-in endpoint.
- B . Increase the CPU allocation for the Orchestrator appliance.
- C . Use a REST API client (like Postman) with the same credentials to isolate the issue from Orchestrator.
- D . Reinstall the Orchestrator appliance.
A, C
Explanation:
Authentication failures with REST APIs should be troubleshot by verifying the endpoint configuration within Orchestrator and testing the credentials externally using an API client to ensure the third-party system is accessible and accepting the credentials.
True or False: When importing an existing vSphere cluster into VVF 9.0, the cluster must use a vSphere Distributed Switch (VDS) for its networking; vSphere Standard Switches (VSS) are not supported for the final VVF cluster state.
- A . True
- B . False
A
Explanation:
VVF requires vSphere Distributed Switches (VDS) for managing network traffic consistently across the cluster. If the existing environment uses VSS, it must be migrated to VDS as part of the integration and import process.
A VVF 9.0 environment contains a vSAN cluster with Deduplication and Compression enabled. An administrator is troubleshooting lower-than-expected space savings.
Which workload characteristic typically results in poor deduplication and compression ratios?
- A . Virtual Desktop Infrastructure (VDI) linked clones.
- B . Encrypted video files and heavily compressed database backups.
- C . Blank virtual disks provisioned as Thin.
- D . Identical operating system deployments.
B
Explanation:
Deduplication and compression algorithms rely on finding identical data blocks and predictable data patterns. Data that is already highly compressed (like video or zip files) or encrypted prior to hitting the vSAN layer appears as random noise and cannot be further reduced.
A VVF vSAN cluster has suffered a permanent failure of one host. The cluster is using a "Failures to Tolerate" (FTT) = 1 (Mirroring) storage policy.
What happens to the vSAN objects that had components on the failed host?
- A . They are permanently lost.
- B . The objects remain accessible because a mirrored copy exists on another host, and vSAN will attempt to rebuild the missing component after the delay timer expires.
- C . The entire vSAN datastore becomes inaccessible until the host is replaced.
- D . vSAN automatically changes the policy to FTT=0.
B
Explanation:
With FTT=1 mirroring, two copies of the data exist on separate hosts (plus a witness component). If one host fails, the data remains accessible from the surviving replica. vSAN will wait 60 minutes (default) and then begin rebuilding a new replica on the remaining healthy hosts.