1 / 7 VMware 3V0-23.25 Exam VMware Certified Advanced Professional - VMware Cloud Foundation Storage https://www.passquestion.com/3v0-23-25.html 35% OFF on All, Including 3V0-23.25 Questions and Answers P ass 3V0-23.25 Exam with PassQuestion 3V0-23.25 questions and answers in the first attempt. https://www.passquestion.com/ 2 / 7 1.An Infrastructure Manager is evaluating the Total Cost of Ownership (TCO) and operational trade-offs of expanding a traditional 3-tier SAN environment versus migrating to vSAN HCI for a 20-host VCF Workload Domain. The database administrators argue for keeping the 3-tier SAN, citing "independent scaling." The VCF architects argue for HCI, citing "operational simplicity." [TCO & Operations Profile] Existing SAN: Dual Controller Array (Currently at 95% IOPS capacity, 40% disk capacity). Proposed HCI: 20x vSAN ESA ReadyNodes. Which of the following statements correctly evaluate the trade-offs and limitations of the 3-tier SAN architecture in this specific growth scenario? (Select all that apply.) A. To fix the SAN IOPS bottleneck, the manager must purchase expensive new array controllers, incurring a massive upfront CapEx hit known as the "Forklift Upgrade." B. The 3-tier SAN maintains a genuine architectural advantage by allowing the manager to add pure storage capacity (JBODs) without paying for additional ESXi CPU/RAM licenses. C. HCI inherently consumes 30% of the physical network bandwidth just to maintain 3-tier legacy compatibility with Fibre Channel storage arrays. D. The existing SAN exhibits the "stranded capacity" limitation; it has plenty of free disk space (60%), but cannot use it for high-IOPS workloads because the controllers are saturated. E. Expanding HCI node-by-node allows granular OpEx spending (paying only for the CPU/Storage needed today), whereas SANs require predicting and purchasing 5-years of controller headroom upfront. Answer: A, B, D, E 2.An Infrastructure Manager is sizing the network requirements for a vSAN ESA Remote Protection strategy. The organization wants to protect 50 TB of production data with a 15-minute RPO to a secondary site. The manager evaluates the backend network impact during the initial seed and subsequent incremental replications. [vSAN Performance View - Inter-Site Link (ISL)] Outbound Replication Traffic Peak Bandwidth: 18 Gbps Average Bandwidth: 1.2 Gbps Congestion: 5 Inbound Client I/O Traffic Latency: 25ms (Elevated) Which of the following factors correctly evaluate the trade-offs and operational constraints of sizing network bandwidth for Remote Protection? (Select all that apply.) A. The manager should deploy the vSphere Replication appliance to compress the traffic, as native vSAN Remote Protection cannot compress replication streams. B. The initial full sync (baseline) will consume significant bandwidth (up to 18 Gbps shown) and must be throttled to prevent starving active VM I/O on the network. C. Reducing the RPO from 60 minutes to 15 minutes decreases the peak bandwidth required for each sync, as fewer delta blocks accumulate between intervals. D. vSAN ESA Remote Protection uses deduplication during transit, meaning the 50 TB of data will only consume roughly 10 TB of network bandwidth for the initial seed. 3 / 7 E. Network congestion caused by high replication traffic directly increases the "Inbound Client I/O Traffic" latency because vSAN shares the same VMkernel adapter for both storage I/O and replication. Answer: B, C, E 3.An L3 Support Engineer is configuring a VCF 9.0 vSAN Stretched Cluster. The cluster includes two sites (Preferred and Secondary). The goal is to ensure Tier-1 database VMs strictly run on the Preferred Site during normal operations, but gracefully failover to the Secondary Site if the Preferred Site burns down. The engineer uses Ruby vSphere Console (RVC) to check cluster state while configuring vSphere DRS. [RVC Output: vsan.stretchedcluster_config] Preferred Site: esx-01, esx-02, esx-03 Secondary Site: esx-04, esx-05, esx-06 Which TWO configurations MUST the engineer apply to the DRS Host/VM Groups to satisfy this DR requirement? (Choose 2.) A. The engineer must disable DRS Automation (set to Manual) to prevent VMs from accidentally moving to the Secondary site during daytime high CPU loads. B. The engineer must map the DRS VM groups directly to the vSAN Unicast Agent tables via CLI. C. The engineer must apply a "SHOULD run on hosts in group" DRS rule; this keeps the VMs on the Preferred site normally, but allows vSphere HA to violate the rule and restart them on the Secondary site during a total site failure. D. The engineer must apply a "MUST run on hosts in group" DRS rule for the VMs; "MUST" ensures that HA can strictly map the IPs during failover. E. The engineer must create a DRS "Host Group" containing ONLY the Preferred Site hosts (esx-01 through esx-03). Answer: C, E 4.A CTO is auditing the billing and licensing model for a new VCF 9.0 environment. The environment consists of a standard vSAN ESA cluster (hyper-converged) and a centralized vSAN Max cluster (Disaggregated storage-only). [UI - vSAN Performance View > Licensing Status] Cluster A (vSAN ESA - HCI): 16 Hosts, 512 Cores, 200 TiB Cluster B (vSAN Max - Storage Only): 8 Hosts, 256 Cores, 1 PiB Which statement accurately defines the fundamental difference in how these two VCF architectures consume vSAN license entitlements? A. Cluster A (HCI) is licensed traditionally per CPU core (VCF Subscription), whereas Cluster B (vSAN Max) abandons the core metric and is licensed strictly on a "per-TiB of raw capacity" subscription model. B. vSAN Max requires a specialized hardware DPU license for the Top-of-Rack switches, whereas ESA uses software-only keys. C. The compute nodes mounting the vSAN Max cluster must double their VCF license consumption to cover the remote storage array connectivity. D. Both clusters consume the exact same "per-core" VMware Cloud Foundation (VCF) subscription license model, meaning the 1 PiB of storage in Cluster B incurs no additional capacity costs. Answer: A 4 / 7 5.A Cloud Administrator is integrating a third-party Backup solution with a vVols-backed VCF cluster. The goal is to perform crash-consistent backups with minimal stun time for the production VMs. The storage team created an advanced array-side feature definition that is pushed to vCenter via the VASA Provider. # SPBM Policy: "vVol-Backup-Optimized" capabilities: vvol: array.snapshots: true array.fast_clone: true ruleSet: IOPS_Limit: 50000 How do vVols, VASA, and SPBM integrate to fulfill this backup requirement during the daily backup window? (Select all that apply.) A. The array.fast_clone capability allows the backup software to export the vVol data directly over the management network without mounting it to an ESXi host. B. When the backup software triggers a snapshot, vCenter uses VASA to instruct the physical array to create a hardware snapshot of the specific vVol, bypassing the ESXi storage stack entirely. C. The integration practically eliminates the "VM stun" period that occurs during snapshot consolidation in traditional VMFS datastores. D. Because vVols represent individual VMDKs on the array, the array can snapshot just the single VM's data, unlike VMFS where array snapshots must capture the entire 10 TB LUN containing dozens of VMs. Answer: B, C, D 6.A Network Administrator is auditing capacity policies in a VCF 9.0 environment running vSAN Express Storage Architecture (ESA). The administrator queries the SPBM configuration applied to the cluster's base operational objects. [vSAN Cluster Config Output] vSAN Default Storage Policy Storage Pool: ESA-NVMe-Pool Rule: OSR (Object Space Reservation) = Thin provisioning Why is the "Object Space Reservation" policy fundamentally different in vSAN ESA compared to the legacy vSAN OSA, and what specific objects still require reservations? (Select all that apply.) A. ESA strictly requires OSR=100% when standard Deduplication is enabled. B. In vSAN ESA, user data (VMDKs) is ALWAYS strictly Thin Provisioned; the OSR UI option to reserve capacity for VM payload data has been completely deprecated due to the new log-structured metadata mapping. C. OSR=100% can still be applied in ESA, but ONLY to the specific "VM Home Namespace" object to ensure swap files and config files have guaranteed allocation during HA events. D. The log-structured nature of ESA writes data in append-only sequential stripes; it is mathematically impossible to "reserve" a specific physical sector before it is actually written, rendering traditional OSR definitions obsolete for block data. E. In OSA, Thick Provisioning allocated the raw physical sectors on the SATA drive; in ESA, Thick Provisioning pre-allocates NVMe memory pages, guaranteeing zero network congestion. Answer: B, C, D 5 / 7 7.A Storage Administrator is performing a post-deployment validation on a VCF 9.0 Workload Domain. The design utilized the vSAN Sizer tool to forecast capacity for a 6-node Stretched Cluster (3 nodes per site). The Sizer output predicted a specific "Free Capacity" based on an FTT=1 (RAID-1) Local + Dual Site Mirroring policy. The administrator queries the cluster object distribution using the Ruby vSphere Console (RVC) to verify if the actual component layout matches the Sizer's assumptions. [RVC Output: vsan.obj_status_report ~cluster] Object Type: Virtual Disk (hard disk 1) Policy: PFTT=1 (Mirror), SFTT=1 (RAID-1) Component Layout: Site A: - Component 1: 50 GB (Active) - Component 2: 50 GB (Active) - Witness: 4 KB (Active) Site B: - Component 3: 50 GB (Active) - Component 4: 50 GB (Active) - Witness: 4 KB (Active) Witness Site: - Witness: 4 KB (Active) Why does this RVC output validate that the Sizer tool correctly estimated a 4.0x capacity overhead for this object, and how does this affect cluster expansion planning? (Select all that apply.) A. The layout demonstrates the "Nested Fault Domain" concept, confirming that adding one node to Site A requires adding one node to Site B to maintain the symmetrical 4.0x layout. B. The "Dual Site Mirroring" creates two copies of the data (one at Site A, one at Site B), which acts as a 2.0x multiplier. C. The "SFTT=1 (RAID-1)" local protection creates two copies of the data *within each site*, applying another 2.0x multiplier (2.0 x 2.0 = 4.0x total overhead). D. The 4 KB Witness components in Site A and Site B consume the same licensed storage capacity as the 50 GB data components, skewing the Sizer results. Answer: A, B, C 8.A CTO is evaluating the performance inconsistencies of a mission-critical SQL database running on a legacy 3-tier Fibre Channel architecture. The database randomly suffers from high latency during end-of-month reporting, even though the database VM itself shows low CPU utilization. [Architecture Diagram: Legacy 3-Tier SAN] Datastore: SAN-LUN-01 (10 TB) VM 1: SQL-Prod-01 (Critical) VM 2: Backup-Proxy-01 (Heavy I/O) VM 3: Test-Dev-Server (Uncapped I/O) VM 4..20: General Workloads Based on the traditional storage architecture diagram, what is the inherent structural limitation causing the 6 / 7 latency spikes for the SQL database? A. Traditional SANs group multiple distinct virtual machines onto a single monolithic LUN, creating a shared storage queue where aggressive VMs starve critical VMs of IOPS (the "noisy neighbor" problem). B. The SQL database lacks the "Multi-Writer" flag, preventing it from bypassing the hypervisor kernel queue limits. C. The Fibre Channel fabric cannot process multipathing signals efficiently, causing SCSI reservations to lock the entire fabric. D. The ESXi hosts are configured with software iSCSI adapters instead of hardware HBAs, increasing the interrupt handling overhead. Answer: A 9.An L3 Support Engineer is assisting a client with recovering a vSAN Stretched Cluster after a prolonged network outage. The Inter-Site Link (ISL) was down for 6 hours. The cluster has just regained full connectivity between Site A, Site B, and the Witness. The storage policy is configured as follows: # Stretched Cluster Policy Site-Disaster-Tolerance: Dual site mirroring Failures-to-Tolerate: 1 failure - RAID-5 (Erasure Coding) The client notices that the storage is operational, but vCenter reports the cluster is heavily congested, and host CPU usage is pinned at 90%. [vSAN Performance View] vSAN Resyncing Objects: 1,200 Data to Sync: 4.5 TB Estimated Time to Completion: 12 Hours Which TWO architectural behaviors are occurring during this recovery phase, and how should the engineer manage them? (Choose 2.) A. vSAN is executing a full resync of all 4.5 TB because the 6-hour outage exceeded the 60-minute CLOM repair timer, invalidating the delta tracking. B. The engineer should throttle the Resync I/O in the vSAN UI to prioritize guest VM traffic if the production applications are suffering from the congestion. C. The engineer must manually trigger a "Deep Rekey" operation to re-establish the cryptographic trust between the sites before data can synchronize. D. vSAN is executing a "delta resync" (proxy view) to synchronize only the 6 hours of data that changed on Site A over to the stale components on Site B. Answer: B, D 10.A Solutions Architect is designing the Day 2 operational workflows for a massive CI/CD environment hosted on VCF. Developers frequently request to expand their database PVCs from 100 GB to 500 GB on the fly. The architect must evaluate the trade-offs of using vSAN ESA with the vSphere CSI Driver for this "Volume Expansion" requirement. [Storage Policy View - CNS Expansion Config] Policy: DB-Expansion-Enabled AllowVolumeExpansion: True (K8s) 7 / 7 vSAN ESA Object: Thick Provisioning CSI Snapshot Capability: Enabled Which of the following statements correctly evaluate the technical constraints and trade-offs of online volume expansion for First Class Disks (FCD) via CSI? (Select all that apply.) A. Thick provisioning the vSAN ESA object guarantees that the 400 GB expansion space is reserved instantly in the DOM metadata, preventing the expansion from failing later due to an out-of-space condition. B. If the FCD currently has a native vSAN snapshot attached (created via the CSI Snapshot controller), the volume expansion request will fail because vSAN prohibits expanding base disks with active snapshots. C. Volume expansion in Kubernetes is purely a control-plane update; the vSphere CSI driver does not interact with the vSAN DOM to allocate additional physical blocks. D. Expanding an FCD requires placing the TKG Worker Node into vSphere Maintenance Mode to refresh the virtual SCSI controller limits. E. The CSI driver supports online expansion (expanding the FCD while the Pod is running), but the underlying guest OS filesystem must also support live resizing (e.g., ext4 or XFS). Answer: A, B, E 11.An Infrastructure Manager is actively monitoring the RVC (Ruby vSphere Console) output during a major data ingestion event into a VCF 9.0 cluster. The cluster has 100 TB of raw capacity. The "Host Rebuild Reserve" is enabled and calculated at 10 TB. The "Operations Reserve" is strictly enforced at 10 TB. [RVC Output: vsan.cluster_info] Total Capacity: 100 TB Used Capacity: 81 TB (81%) DOM Client Throttling: Active (Backpressure applied to 5 VMs) Why is the vSAN DOM Client aggressively throttling virtual machines at 81% utilization, and what is the methodology used to calculate this boundary? (Select all that apply.) A. Disabling the "Host Rebuild Reserve" in the UI would immediately relieve the throttling condition and release 10 TB of addressable space to the VMs, though at the cost of high availability during a host failure. B. The "Usable/Free" capacity in HCI is mathematically defined as: Total Raw - (Used + Ops Reserve + Rebuild Reserve). C. The throttling is a false positive generated by standard vmkfstools heartbeat checks when the deduplication engine runs out of RAM. D. The SDDC Manager automated agent forces the throttle because the 80% mark violates standard Kubernetes persistent volume claims. E. At 81 TB used, adding the 10 TB Ops Reserve and 10 TB Rebuild Reserve equals 101 TB. The cluster has mathematically breached the absolute physical barrier, triggering the DOM to apply performance backpressure to prevent the filesystem from locking up. Answer: A, B, E