2V0-13.25 VMware Cloud Foundation 9.0 Architect Questions and Answers

Asingle VCF instance with dedicated Workload Domains per tenantstrikes the balance between operational efficiency and isolation. It reduces lifecycle tasks since only one management domain must be maintained, while each tenant having adedicated workload domainensures isolation of compute resources. This meets all three stated requirements effectively: lifecycle simplicity, minimal overhead, and tenant-specific compute separation.

The constraint forces the use of the existing array. However, there’s ariskthat performance/capacity may be insufficient. VMware’s best practice for risk mitigation in RACR is toplan for contingency.

Ais correct because securingbudget allocation for additional hardwareaddresses the risk if the array cannot meet requirements.

B(RAID mirroring) improves redundancy, not performance or capacity.

Ccontradicts theconstraint(cannot ignore existing array).

D(extra Fibre Channel switches) doesn’t address storage array performance/capacity.

Thus, the best mitigation isbudget planning for new hardwareif the array fails to meet requirements.

In VMware Cloud Foundation, eachVI workload domainis backed bya single vCenter Server instance. By deploying multiple clusters within the same VI workload domain, the architect can supportmultiple use cases(e.g., separating prod/dev),without provisioning new vCenters. This design reducesmanagement overhead and operational complexity.

However, if stricter separation is needed (e.g., multi-tenancy or lifecycle independence), separate workload domains may be more suitable. While vSAN is the default, it's not mandatory unless vSAN Ready Nodes are used for bring-up.

BGP loop prevention relies onunique AS numbers. If the same AS is reused, routes may be dropped. In NSX VPC designs,assigning a unique private AS per Tier-0 gatewayensures clean routing without triggering loop detection.

A: Timer adjustment affects convergence, not loop detection.

C: iBGP with physical routers is non-standard and doesn’t solve the loop issue.

D: TEP traffic is unrelated to BGP routing loops.

D: Setting UserVars.SuppressShellWarning = 0 ensureswarnings are shown when shell access is used, improving auditability and compliance.

E: Usingcertificates signed by a trusted military Root CAaligns with security compliance standards for certificate trust and chain of custody.

Options A and C are operational best practices, but notmilitary hardening. B is about operations automation, not compliance-level hardening.

Due to theexplicit constraint that no internet accessis permitted, the VCF Installer cannot connect to an online depot. Instead, the architect must use theoffline depot model, where binaries are downloaded externally and made accessiblelocally within the VCF environment(e.g., using a local web server).

This setup aligns with VMware's"air-gapped" deployment guidancefor VCF environments with strict security postures.

This is arequirementbecause it specifieswhat the solution must deliver. VMware encryption requires enablingVM Encryption with vSphere VM Encryption policies or vSAN encryption.

Constraintsare design limitations (e.g., budget, existing hardware).

Risksare potential negative outcomes (e.g., encryption introduces CPU overhead).

Assumptionsare unverified statements taken as true (e.g., "all VMs can support encryption").

Thus, “All VMs must be encrypted” is asecurity requirement.

The requirements specify:

Large-scale migration (800 workloads).

No downtime.

Strict change window (4 weeks).

HCX Replication Assisted vMotion (RAV)is the only method that combineslarge-scale migration efficiencywithzero downtime:

Workloads are replicated in advance.

During the cutover, avMotion-like switchovercompletes with no outage.

Other methods:

Cross vCenter vMotionworks for live moves but is not efficient forhundreds of VMswithin a short timeline.

HCX OS Assisted Migrationis for physical-to-virtual or non-vSphere workloads (not applicable).

HCX Bulk Migrationis efficient but introduces downtime during cutover.

Thus,HCX RAVbest meets the no-downtime, large-scale requirement.

Astretched cluster modelallows synchronous replication between sites withRPO = 0, ensuring no data loss.

Since the datacenters are withinlow-latency (<5ms) distance, stretched vSAN clusters with fault domains can span across them.

Other options:

A/B (disaster recovery models) rely onasynchronous replication, introducing potential data loss.

C (multi-rack fault domains) improves rack-level resiliency, notsite-level protection.

Thus, the correct design is aVCF fleet with stretched cluster model across fault domains.

VMware Cloud Foundation architecture uses theRACR framework(Requirements, Assumptions, Constraints, Risks) to classify inputs:

Business requirementsdescribe high-level outcomes the business wants to achieve, often focusing on cost, efficiency, or customer satisfaction.

Technical requirementsdefine how infrastructure should behave to meet performance, resiliency, or security needs.

Among the given options:

A(growth by 30%) andC(no SPOF) aretechnical requirements.

B(security and resiliency) is also atechnical requirement.

D(reduce operational costs) directly aligns withbusiness goals, making it the correct business requirement.

Business requirementsdescribe the high-level goals of the organization, typically related touser experience, cost reduction, compliance, or agility.

A(best end-user experience) aligns directly with business objectives.

B, C, and Daretechnical requirements: they specify infrastructure design behaviors (migration, security, SLA).

Therefore, thebusiness requirementis ensuring the bestend-user experience.

VMware Cloud Foundation scales usingworkload domains (WLDs). Each WLD provides its own vCenter Server, NSX Manager, and lifecycle independence through SDDC Manager.

Byusing multiple WLDsfor each department, the architecture supportsindependent scaling, policy separation, and lifecycle management.

Option A or Crestricts flexibility as all tenants would share a single WLD, leading to lifecycle constraints and “noisy neighbor” issues.

Option Dcontradicts best practices: multiple departments should not share a single cluster inside a WLD when separation and lifecycle flexibility are required.

This design ensures seamless addition of new workload domains as departments and applications grow.

Since the constraint isexisting stretched cluster model, the design assumes a single cluster across two sites.

To meet theminimize downtime requirement, theSingle Management Zone Supervisor with HA control planeensures control plane resiliency within that stretched cluster.

Options with “Simple Availability” do not meet the high availability requirement. Options with three zones are not applicable because the constraint specifies a stretched cluster model.

Logical design decisions specify how features are configured to meet conceptual requirements. In VMware Cloud Foundation logical design, tuningVMware Distributed Resource Scheduler (DRS)parameters such as latency sensitivity for workload clusters is explicitly part of logical design because it directly impacts workload performance and cluster behavior. Options A and B are conceptual or operational, and option D is a standard best practice at the physical design layer. VMware documents emphasize that logical design choices definehow features (like DRS, HA, and vSAN policies) are implemented.

RTO (Recovery Time Objective)measures themaximum downtime toleratedbefore a service must be restored.

RPO (Recovery Point Objective)measures themaximum tolerable data loss.

In this scenario:

Business-critical workloads tolerate2 hours of data loss(RPO).

Infrastructure must be operational again within8 hours(RTO).

Thus, RTO =maximum allowable recovery time for service restoration.