3V0-23.25 Practice Questions
Prepare for 3V0-23.25 with more than an answer.
- Exam fee
- $250 USD
- Level
- Advanced Professional
- Valid for
- 36 months
Domains covered on the exam 5
- IT Architectures, Technologies, Standards10%
- VMware Cloud Foundation (VCF) Products and Solutions20%
- Plan and Design the VMware Solution15%
- Install, Configure, Administrate the VMware Solution40%
- Troubleshoot and Optimize the VMware Solution15%
- 1
An administrator is configuring vSAN Data Protection in VCF 9.0 to replicate VMs between two vSAN ESA clusters. The goal is to achieve an RPO of 5 minutes. Which component handles the replication traffic and orchestration?
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Correct answer: D
vSAN Data Protection replication in VCF 9.0 replicates vSAN ESA snapshots natively from one vSAN cluster to another, with an RPO configurable from 1 minute to 24 hours (default 5 minutes). It is powered by VMware Live Recovery: the VMware Live Recovery appliance (which combines VMware Live Site Recovery, vSAN Data Protection and vSphere Replication) must be deployed at both the protected and recovery sites and connected to each vCenter, and the vCenter sites and vSAN clusters are then paired. A standalone vSphere Replication/SRM design uses a different replication engine, and SDDC Manager lifecycle services do not replicate VMs.
- 2
A solution architect is sizing a vSAN ESA cluster for a database workload. The workload requires 100TB of usable capacity and must withstand a double disk failure (RAID-6). What is the minimum raw capacity required, assuming no deduplication or compression savings, and adhering to the standard ESA RAID-6 capacity overhead?
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Correct answer: C
vSAN ESA uses an advanced RAID-6 erasure coding scheme that requires a capacity overhead of 1.5x (or 50% overhead). To get 100TB usable, you calculate: 100TB * 1.5 = 150TB raw capacity. (Note: This simplifies slack space, but 1.5x is the correct multiplier for ESA RAID-6 data footprint).
- 3
What is the primary role of the Paravirtual CSI (pvCSI) driver when configuring storage for a vSphere Kubernetes Service (VKS) cluster within VCF 9.0?
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Correct answer: D
pvCSI is the version of the vSphere CNS-CSI driver modified for VKS clusters. It runs inside the VKS cluster and handles all storage requests from that cluster, such as PVCs. It sends those requests to CNS-CSI in the Supervisor, which passes them to CNS in vCenter, where the FCD-backed volumes are created according to the storage policy. pvCSI does not talk to CNS directly and does not need infrastructure credentials; it uses a service account in the namespace.
- 4
An architect is designing a greenfield VMware Cloud Foundation 9.0 workload domain for a financial institution. The institution has a strict requirement to use their existing high-performance Fibre Channel All-Flash Arrays for the principal storage of the new domain due to regulatory data sanitization standards that their current arrays already meet. Which design decision aligns with VCF 9.0 capabilities?
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Correct answer: B
In VCF 9.0, Fibre Channel (VMFS on FC) is a supported principal storage model for the management domain and for VI workload domains (Table 23). Hosts are commissioned with the VMFS on FC storage type, the VMFS datastore must already be created and mounted on all hosts before commissioning, and VMFS on FC is then selected on the Storage page of the workload domain creation workflow (run from VCF Operations; the SDDC Manager UI is deprecated in 9.0). Using vSAN as principal with FC only as supplemental does not meet the requirement, and HCI Mesh only shares vSAN datastores.
- 5
A storage administrator is evaluating the move from vSAN Original Storage Architecture (OSA) to vSAN Express Storage Architecture (ESA) for a new VCF 9.0 deployment. The environment requires the highest possible storage efficiency for VDI workloads that have high deduplication potential. Which architectural difference in ESA 9.0 directly benefits this scenario compared to OSA?
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Correct answer: D
vSAN ESA global deduplication (available as limited release in 9.0 P01; generally available in VCF 9.1) uses a cluster-wide deduplication domain at 4 KB granularity and runs as a post-process background task, so duplicate blocks across all hosts in the cluster - common in VDI - are found. vSAN OSA deduplicates only within each disk group. ESA deduplication is not done after encryption at the bottom of the stack, ESA does not support HDDs, and ESA has no cache tier.
- 6
A consultant is designing a vSAN Stretched Cluster for a VCF 9.0 environment spanning two datacenters. The customer requires a solution that can tolerate a complete site failure while maintaining the lowest possible storage overhead. Which vSAN storage policy configuration meets these requirements?
flowchart LR A["Stretched Cluster Site A + Site B"] --> B{Choose Resilience Strategy} B -->|Maximum Efficiency| C["Dual Site Mirroring RAID-1 across sites + Local RAID-5 (~2.66x OSA / 2.5-3x ESA total)"] B -->|Higher Overhead| D["Dual Site Mirroring RAID-1 across sites + Local RAID-1 (4x total)"] C --> E["Recommended for Cost Optimization"] D --> F["Simpler but Expensive"]Show answer details
Correct answer: B
Tolerating a complete site failure requires the Site disaster tolerance rule 'Dual site mirroring' (Site mirroring - stretched cluster), which keeps a full copy in each data site. The secondary Failures to tolerate rule then protects data within each site; '1 failure - RAID-5' stores that local copy as an erasure code, consuming about 2.66x the VM size on vSAN OSA (4 hosts per site) or 3x/2.5x on vSAN ESA, versus 4x for dual site mirroring with local RAID-1. 'None - keep data on Preferred' does not survive loss of that site, and 'No data redundancy' gives no local resilience.
