2V0-16.25 Questions and Answers

VMware Toolsis a suite of services and drivers installed in a VM. It provides:

Guest OS heartbeat service (B):Used by vCenter to monitor VM health.

Device drivers (C):Optimized drivers for network, storage, graphics, and mouse/keyboard integration.

Other options:

A. Journaling of file system metadata→ Provided by the guest OS filesystem, not VMware Tools.

D. Stores VM configuration files→ Handled by vCenter/ESXi, not VMware Tools.

E. Manages VM hardware configuration→ Done via vSphere Client, not VMware Tools.

When troubleshooting critical events in a VMware vSphere Foundation (VVF) environment,logs are essential for root cause analysis.

In the given scenario, the administrator identified thatspecific log messages on a host clearly pinpointed the issue.

To enhance future troubleshooting, the best approach is to implementVCF Operations for Logs.

This enablescentralized log collection, log-based alerts, and advanced queries, making it easier to correlate issues across infrastructure.

Other options likeVCF Operations Diagnosticsfocus on proactive health checks and findings, whileManagement Pack for VCFextends observability but does not provide raw log insights.VCF Automationis unrelated to troubleshooting logs.

ThevSphere Foundation 9.0 licensing modelusesper-core licensing.

Current license covers1024 cores.

Existing hosts =960 cores, leaving64 cores licensed.

Adding a96-core host→ 32 cores exceed the license.

Result:

The new host runs inevaluation mode.

If not licensed after the evaluation period, the host isdisconnected from vCenter.

Other options:

A. Limited to 64 cores→ Not how VMware licensing enforcement works.

B. Limited to 64 cores until license upgrade→ Incorrect; VMware does not partially disable cores.

D. No issue→ Incorrect; licensing compliance will cause issues.

For an8-node vSAN OSA cluster, the administrator needs a storage policy that:

Tolerates2 host failures, and

Providesmaximum usable capacity.

RAID-5/6 (erasure coding)is more capacity-efficient than RAID-1 mirroring.

To tolerate2 failures, the correct policy isRAID-5 with FTT=2.

RAID-1 (mirroring) would consume far more capacity, reducing usable space.

Other options:

A. 1 failure - RAID-1→ Only tolerates one failure.

C. 3 failures - RAID-1→ Provides higher resilience but uses much more capacity, not maximum efficiency.

D. 1 failure - RAID-5→ Tolerates only one failure.

Thet-shirt sizing model(Small, Medium, Large) forvCPU allocationis an example ofslab-based pricing.

Base rate slabsallow administrators to define different ranges (slabs) of resource usage with associated rates.

In this case, vCPUs are grouped into ranges (1–2, 3–4, 5–8), and charges are applied per slab.

Other options:

A. Base rate storage per GB→ Applies to storage, not CPU.

C. Base rate CPU per GHz→ Charges by GHz usage, not vCPU count.

D. Base rate CPU per vCPU→ Flat per vCPU, no slab/tier-based flexibility.

The administrator wants toproactively manage performance degradationduring peak times without overwhelming the IT team.

The correct method is tocreate a custom alert with specific metric, threshold, and duration(A).

This ensures alerts are triggered only when sustained performance issues occur, reducing noise.

B. Default alert settings→ Too generic, may cause alert storms.

C. Custom dashboard→ Useful for visualization but not proactive alerting.

D. Notify during off-peak hours→ Defers the issue, not proactive.

Hardware abstraction in VMware virtualization:

Thehypervisor abstracts physical resources(CPU, memory, storage, networking) and presents them to VMs asstandardized virtual hardware.

This allows VMs to run independently of underlying physical devices, enabling features likevMotion and hardware independence.

Other options:

A. Encrypting data→ Security feature, not abstraction.

B. Isolating memory access→ Memory protection, not full abstraction.

C. Live migration between Intel and AMD→ Possible with compatibility modes, but not a direct definition of abstraction.

When creating acustom alert in VCF Operations, the final required step is:

Enable the alert in an Active Policy, so it applies to the target objects.

Without policy activation, the alert exists but will never trigger.

Other options:

A. Super metric→ Only required if monitoring a custom metric, not for standard alerts.

B. REST Notification Plugin→ Used for outbound integration, not triggering alerts.

C. Payload Template→ Used in notifications, not in core alert configuration.

To allow a Content Library in vSphere Foundation to be accessed byother vCenter Server instances, it must bepublished.

Once published, other vCenters cansubscribeto the library.

Synchronization ensures subscribed vCenters receive updated templates and ISOs.

Other options:

A. Automatic synchronization→ Works only for subscribers, not for publishing.

B. Store on vSAN datastore→ Storage choice does not enable multi-vCenter access.

C. Store on NFS datastore→ Similar, datastore type does not matter.

TheVCF Operations for Logs capabilitymost useful forroot cause analysis and troubleshootingisLog Querying.

Allows searching, filtering, and correlating log events to diagnose issues.

Log Forwarding (A)→ Sends logs elsewhere, not analysis.

Alerting (B)→ Notifies about issues but does not provide investigation details.

Dashboarding (C)→ Provides visualization, but root cause analysis requiresqueries.

To allowActive Directory domain users(corp.local) to authenticate in vCenter with domain credentials:

The correct method is configuringActive Directory over LDAP as an identity source. (D)

This uses thedefault AD protocol (LDAP/Kerberos)without requiring SAML or OIDC federation.

Other options:

A. Adding domain controller certificate→ Needed for LDAPS but not the main step.

B. Identity Federation with SAML→ Requires federation, not allowed per requirements.

C. OpenID Connect (OIDC)→ Used for external IdPs, not traditional AD auth.

Two supported methods exist for adding widgets toVCF Operations for Logs dashboards:

From Explore Logs– Create a widget (e.g., query result) and selectAdd to Dashboard. (B)

Dashboard Design Pane– Use the design interface todrag and drop widgets. (C)

Other options:

A. Clone widget from existing dashboard→ Not a supported method.

D. Import widget in design pane→ Import is for dashboards, not individual widgets.

E. Management Pack Builder→ Not related to Logs dashboard widgets.

In VMware Cloud Foundation (VCF)Operations for Logs, clusters require aminimum of three healthy nodesto function in a fully active and resilient state. When a cluster is deployed with only two nodes (primary + one secondary), the environment does not meet the minimum recommended requirement. If thesecondary node fails, the cluster becomes degraded and functionality is reduced.

The correct remediation is:

Rebuild the failed secondary nodeso that the cluster can return to a healthy state.

After rebuilding, the node must be rejoined to the primary using theManagement → Clusterworkflow (secure token, IP/hostname of primary, etc.).

Why not the other options?

A. Scale up to Extra Large→❌Scaling up affects resource capacity (vCPU, RAM, disk) but does not solve the problem of missing nodes.

B. Scale up to Large→❌Same reason as above, scaling up does not restore HA.

D. Rebuild the secondary and add an additional node→❌While adding more nodes is a best practice (since HA clusters require three nodes), theminimum action requiredto restore a healthy active cluster is torebuild the failed node. Adding more nodes is optional for increased resiliency.

Therefore, the immediate and verified answer is torebuild the failed secondary node.