Free Practice Questions for VMware 3V0-23.25 Exam

Option B satisfies every requirement because it separates management and workload storage onto dedicated Fibre Channel-backed VMFS datastores while relying on array-based encryption at rest. This avoids VMware native encryption and vSAN-specific encryption mechanisms, matching the regulatory requirement. Fibre Channel is a supported non-vSAN storage architecture for VCF and provides enterprise block storage with multipathing, LUN masking, zoning, and consistent datastore presentation. SPBM storage policies allow storage placement and compliance to align with array and LUN characteristics, supporting automated placement and operational consistency. For scalable file-based workloads, NFS v4.1 is appropriate as supplemental file storage, and Kerberos privacy mode provides authentication, integrity, and encryption in transit for NFS traffic. Restricting cross-domain datastore access preserves strict management/workload segregation. Option A does not properly address file workload scaling or NFS encryption. Option C violates the requirement for array-based encryption by using VMware VM encryption. Option D violates segregation by sharing one NAS platform across domains and relies on application-level encryption instead of the mandated storage architecture. Reference topics: Fibre Channel Storage Model, SPBM, Array-Based Encryption, NFS v4.1 Kerberos, Workload Domain Storage Segregation.

The two major contributors are RAID overhead and Operational Reserve. With the default policy set to FTT=1 using RAID-1 mirroring, vSAN stores two copies of protected data. The capacity planning guidance states that when Failures to tolerate is set to 1 failure with RAID-1 mirroring, virtual machines can use about 50 percent of raw capacity because each object consumes mirrored space. This is the largest capacity-impacting factor. The second contributor is Operational Reserve, which reserves capacity for vSAN internal operations such as policy changes, rebalancing, object movement, and other transient storage activities. Even when Host Rebuild Reserve is not activated, vSAN capacity monitoring still accounts for the operations threshold/reserve needed to keep the cluster functional during internal activity. Encryption overhead is typically not the primary reason for a 20% capacity difference. Host upgrade overhead is not a vSAN capacity category. VM swap can consume capacity, but it does not normally account for most unavailable raw capacity compared with RAID mirroring and operational reservation. Reference topics: vSAN Capacity Planning, RAID-1 FTT=1 Capacity Impact, Operations Reserve, Reserved Capacity.

Four hosts are required to meet the 12 TB usable-capacity requirement after applying the protection policy, data reduction, reserves, and overhead. Each host contributes 8 TB raw capacity from two 4 TB NVMe devices. Three hosts provide 24 TB raw capacity, but once host rebuild reservation, 10% operational reserve, RAID-5 protection overhead, and 25% filesystem/object overhead are considered, the remaining effective usable capacity falls below the required 12 TB target. Four hosts provide 32 TB raw capacity. With vSAN ESA and FTT=1/RAID-5, vSAN uses erasure coding to improve capacity efficiency compared with mirroring. The vSAN sizing guidance states that RAID-5 with FTT=1 provides approximately 75% usable capacity before other reserves and overhead. Host Rebuild Reserve must also be planned so the cluster has enough free capacity to rebuild components after a host failure. After applying the expected 1.5 data reduction ratio and the required reserves, four hosts provide enough usable capacity while three hosts do not. Reference topics: vSAN ESA Capacity Sizing, RAID-5 Erasure Coding, Host Rebuild Reserve, Operations Reserve, vSAN Object Overhead.