2V0-16.25 Sample Questions Answers

To move a VM to another cluster:

Requirement: Zero downtime→ RequiresvMotion.

Challenge: Datastore not shared→ RequiresStorage vMotion.

The combined operation,Cross-Cluster vMotion with Storage vMotion, allows moving compute and storage at the same time, with no downtime.

Other options:

A. vMotion only→ Requires shared datastore, not available here.

B. Backup/restore→ Causes downtime, not acceptable.

D. Cannot be moved→ Incorrect; vMotion + Storage vMotion supports this.

Lockdown Modeon ESXi hosts is asecurity featurethat restrictsdirect loginto the ESXi host.

Once enabled, administrators must manage the host throughvCenter Serverinstead of direct DCUI/SSH access (except for exception users).

This prevents unauthorized local access and improves overall security compliance.

Other options:

A. Improves network performance→ Not related.

C. Increases CPU/memory for VMs→ Not related.

D. Simplifies VM management→ It actually makes direct management more restricted.

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.

Thecore benefit of server consolidation using VMware server virtualizationis the ability to runmultiple independent virtual machines (VMs)on asingle physical host.

This increases hardware utilization, reduces physical server sprawl, and cuts operational costs.

A. Load balancing→ Achieved through features like DRS, not basic server consolidation.

C. Ransomware protection→ Achieved through security features and backups, not consolidation.

D. Automating application clusters→ A benefit of orchestration tools, not consolidation.

In aVMware vSphere Foundation (VVF) deploymentwithvCenter Supervisor Namespaces enabled, the method for creating VMs inside a Supervisor Namespace relies on thevSphere VM Service.

TheVM Serviceexposes VMs as Kubernetes-native objects that are managed usingkubectl.

Administrators (or DevOps engineers with appropriate permissions) must write aVM YAML manifest file, which specifies parameters such as apiVersion, kind: VirtualMachine, spec.imageName, spec.className, spec.storageClass, and spec.networkInterfaces.

The YAML manifest is thenapplied with kubectlto the Supervisor context.

This approach is documented as the supported method:

"As a DevOps engineer, provision a VM and its guest OS in a declarative manner by writing VM deployment specifications in a Kubernetes YAML file."

Why the other options are incorrect:

B. Deploy using the vSphere Client→❌The vSphere Client is used to configure Namespaces, permissions, and VM classes, butactual VM creation in Supervisor Namespaces is done via kubectl + YAML.

C. Use VCF CLI to deploy the VM→❌VCF CLI (kubectl vsphere login) is used only to authenticate and obtain context, not to create VMs.

D. Log in to VCF Automation Service Broker→❌This is used for vRealize Automation/Aria Automation integration, not for direct Supervisor Namespace VM creation.

The scenario:

Remote sitewith 2 ESXi servers, 1GbE networking only.

Storage system supports both network (NAS/iSCSI/NFS) and Fiber Channel.

Fiber Channel is not feasible (no FC switches/HBAs).

vSAN requires more than 2 nodes (minimum 3 for standard vSAN, 2+Witness for 2-node), not mentioned here.

The most suitable solution:

UseNFS storage over 1GbE. (D)

Provides shared storage accessible to both ESXi hosts.

Other options:

A. vSAN→ Needs 3+ nodes or a witness, not supported in this config.

B. Local storage→ Not shared, fails HA/DRS requirements.

C. Fiber Channel→ Requires HBAs and FC switch, not available.

When enabling aSupervisor Cluster in vSphere with Tanzuusing vSphere networking and the Foundation Load Balancer:

You must provide astatic IP rangefor the Supervisor control plane VMs so they can be deployed with dedicated addresses. (B)

You must assign avSphere Distributed Switch (VDS)with an appropriateport groupfor Supervisor networking. (E)

Other options:

A. Namespace template→ Optional after Supervisor is enabled, not required at setup.

C. Tier-0 Gateway→ Applies to NSX networking, not vSphere networking.

D. VM Service→ Enabled after Supervisor, not a prerequisite.

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.

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.

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.

After successfully deploying theVCF Installer appliance, and ensuring ESXi hosts are powered on and meet prerequisites, thenext stepis to:

Launch the VCF Installer deployment wizard, which guides administrators through host onboarding, vCenter deployment, and cluster setup forvSphere Foundation.

Other options:

A. Enable SSH on all ESX hosts→ Not required unless troubleshooting.

C. Install SDDC Manager using VCF Installer→ Only applies to full Cloud Foundation, not vSphere Foundation deployment.

D. Manually deploy vCenter Server Appliance→ The Installer wizard automates this.

ForvSAN ESA (Express Storage Architecture), minimum requirements differ from OSA:

25GbE NICsare required to handle high-performance traffic. (C)

NVMe PCIe flash devicesmust be used for storage. (D)

128GB Memory minimumper host is required. (F)

Other options:

A. 10GbE→ Only supported in vSAN OSA, not ESA.

B. 256GB Memory→ Recommended for large workloads, not minimum.

E. SAS SSDs→ Not supported in ESA; NVMe required.

In avSAN Original Storage Architecture (OSA) cluster, the feature that provides themaximum storage space reductionisDeduplication and Compression.

Deduplication removes duplicate blocks across the cluster.

Compression further reduces the space used by unique blocks.

These are applied at thedisk group leveland are essential inVDI environmentswhere identical VM images consume space.

Why others are incorrect:

A. Disable Object Checksum→ Only reduces CPU overhead, not storage space.

C. Object space reservation→ Controls reserved capacity, not reduction.

D. Compression only→ Reduces space, but less than Deduplication + Compression combined.

The requirements:

QA must not lose performance during contention→ QA must haveguaranteed resources, soFixedis correct.

Marketing can use leftover resources when QA is idle→ Marketing must beScalable, so it can borrow resources from QA’s allocation when available.

Other options:

A. Both Fixed→ Marketing would not be able to use QA’s unused resources.

C. QA Scalable, MKT Fixed→ QA would lose guaranteed resources, violating requirements.

D. Not possible→ Incorrect; VMware supports this configuration.

Theprimary purpose of vSphere Lifecycle Manager (vLCM)is to:

Update, patch, and upgrade ESXi hosts, firmware, and drivers.

Manage host consistency across clusters withimage-based lifecycle management.

Other options are unrelated:

A. Configure network settings→ Done through vCenter or host client, not vLCM.

B. Monitor performance→ Done in vCenter/VCF Operations, not vLCM.

C. Create/manage VMs→ Managed through vCenter, not vLCM.