VMware 3V0-21.23 Exam Practice Test Instant Access

Question 1

An architect is responsible for the following customer considerations in a hardware refresh:

Capacity planning will ensure that the environment does not exceed 70% of peak-average utilization on deployment.

CPU purchases will favor clock speed and last level cache over cores per socket.

Additional ESXi hosts will be added to the cluster when CPU or memory utilization exceeds 70% for 3 consecutive business days.

Path Selection policy will be set to round robin and set to switch paths with every SCSI command.

vCPU to pCPU ratio may not exceed 5:1.

What are three considerations when designing for performance? (Choose three.)

APath Selection policy will be set to round robin and set to switch paths with every SCSI command.

BvCPU to pCPU ratio may not exceed 5:1.

CCapacity planning will ensure that the environment does not exceed 70% of peak-average utilization on deployment.

DAll ESXi hosts must have four paths to the storage array.

ECPU purchases will favor clock speed and last level cache over cores per socket.

FAdditional ESXi hosts will be added to the cluster when CPU or memory utilization exceeds 70% for 3 consecutive business days.

Answer : B, E, F

vCPU to pCPU ratio may not exceed 5:1.

This ensures that the virtual CPU (vCPU) allocation is balanced with the physical CPU (pCPU) resources. A ratio that exceeds 5:1 can lead to CPU contention, negatively impacting performance. By maintaining this ratio, the architect ensures that the workloads have sufficient CPU resources for optimal performance.

CPU purchases will favor clock speed and last level cache over cores per socket.

This is an important performance consideration. Choosing CPUs with higher clock speed and larger last-level cache (LLC) ensures that workloads requiring higher single-threaded performance are optimized. This decision favors workloads that benefit from faster CPU processing and larger cache sizes, improving overall performance.

Additional ESXi hosts will be added to the cluster when CPU or memory utilization exceeds 70% for 3 consecutive business days.

This performance-related decision ensures that the environment remains responsive under load. Adding additional hosts when resource utilization exceeds thresholds helps prevent bottlenecks and ensures continued optimal performance by distributing workloads across more physical hosts.

Question 2

An architect is updating the design for a vSphere environment.

During a workshop focused on security, the following has been identified:

It has been determined that any configuration of ESXi hosts can only be completed via VMware vCenter

The Direct Console User Interface (DCUI) service must be disabled on ESXi hosts

The SSH service must be disabled on ESXi hosts

Based on the information from the workshop, which element does the architect need to include in the design?

AStrict Lockdown Mode

BNormal Lockdown Mode

CNormal Lockdown Mode with a defined Exception User list

DStrict Lockdown Mode with a defined Exception User list

Answer : A

Strict Lockdown Mode is the correct choice because it restricts all access to the ESXi host directly, ensuring that configuration can only be performed through VMware vCenter. This is in line with the requirement that configuration can only be done via vCenter.

Strict Lockdown Mode disables the Direct Console User Interface (DCUI) and SSH services, which aligns with the customer's requirement to have these services disabled for security purposes.

Question 3

What are two valid use cases for VMware Cloud Foundation remote clusters? (Choose two.)

AProvide disaster recovery for an existing workload domain.

BEnable vSphere with Tanzu on a cluster deployed at a remote location.

CProvide resources for virtual machines at an edge location.

DTransform virtual machines to vSphere with Tanzu containers.

EDeploy a cluster within the same rack as the central VMware Cloud Foundation instance.

Answer : B, C

Enable vSphere with Tanzu on a cluster deployed at a remote location.

VMware Cloud Foundation remote clusters can be deployed to extend the functionality of vSphere with Tanzu to remote locations. This allows for containerized workloads to be managed and orchestrated using the same tools as the primary environment, providing consistent management of Tanzu clusters across multiple sites.

Provide resources for virtual machines at an edge location.

Remote clusters can be deployed at edge locations to provide computing resources for workloads that need to run close to the data source. This use case is particularly useful for applications that require low latency or need to process data locally before sending it to the central cloud infrastructure.

Question 4

A company has the requirement of ensuring that business-critical applications have the necessary network bandwidth to function optimally and maintain a consistent quality of service (QoS).

Which statement would be included in the logical design to support this requirement?

AThe network infrastructure must ensure secure communications and efficiently use available bandwidth.

BNetwork resource pool named 'bca-pool-02' is given a reservation quota of 5Gbit/sec.

CThe distributed switch will use a minimum of 25Gbps Ethernet.

DA distributed virtual switch will be created and Network I/O Control will be enabled.

Answer : D

Network I/O Control (NIOC) is a key feature available with distributed virtual switches (vDS) that allows administrators to prioritize and allocate bandwidth to specific network traffic types. It ensures that business-critical applications receive the necessary bandwidth and maintain a consistent quality of service (QoS). This solution meets the requirement to ensure optimal network bandwidth allocation and service consistency.

Question 5

An architect is tasked with updating the design of an existing vSphere-based solution for a pharmaceuticals customer. The update will include upgrade to VMware vCenter 8 and VMware vSphere 8 and the creation of a new cluster that will be used for ongoing research projects. The research project that is driving the need for an update includes a number of applications that are latency-sensitive.

The customer has confirmed the following information during the initial workshop:

The customer recently completed a right sizing exercise using VMware Aria Operations that resulted in a number of ESXi hosts becoming available for use.

Each of the VMware ESXi host servers is configured with:

-- 2 x 20-core Intel Xeon CPU sockets

-- 1024GB RAM divided evenly between sockets

There is no additional budget for purchasing hardware.

After confirming the existing hardware is still listed on the VMware Hardware Compatibility List (HCL), the architect makes the following design decisions with regard to the workload design:

The solution will support a maximum of 20 combined cores and sockets per virtual machine.

The solution will support a maximum of 512GB RAM per virtual machine.

What should the architect document as justification for these design decisions?

AThe maximum supported configuration will ensure efficient use of RAM by sharing memory pages between virtual machines.

BThe maximum supported configuration will ensure the virtual machines will adhere to a single Non-Uniform Memory Access (NUMA) node boundary.

CThe maximum supported configuration will ensure each virtual machine will exclusively consume a whole CPU socket.

DThe maximum supported configuration will allow the creation of virtual machines that cross NUMA node boundaries resulting in improved overall performance.

Answer : B

NUMA (Non-Uniform Memory Access) is a system architecture in which a multiprocessor system is divided into multiple memory nodes. Each NUMA node typically has its own local memory that is faster to access than remote memory from other nodes.

In this case, each ESXi host has two CPU sockets (each with 20 cores) and 1024 GB of RAM divided evenly between the two sockets, meaning there are two NUMA nodes in each host.

By limiting the virtual machine to a maximum of 20 cores and sockets per virtual machine, and 512 GB of RAM, this ensures that each virtual machine will fit within a single NUMA node, preventing the virtual machine from crossing NUMA node boundaries. This design helps maintain better memory access performance and avoids potential performance degradation that can occur when a VM accesses memory across NUMA nodes.

Question 6

An architect is designing a new vSphere 8 environment and needs to plan the migration of virtual machines from the source vSphere 7 infrastructure.

The following has been captured about the source infrastructure and project:

All virtual machines operate supported versions of Microsoft Windows

All virtual machines have VMware Tools 11 or higher installed

vCenter Enhanced Linked Mode is configured

VMware PowerCLI is available in the environment

No budget is available for discovery tooling

The architect must capture and review active services from inside running virtual machines to inform the migration design.

Considering the information available, which method can the architect use to acquire the information required?

ARequest and review the information via VMware vCenter

BDeploy and review the service information from VMware Aria Operations

CDeploy and review the service information from VMware Aria Operations for Applications

DRequest and review the information via VMware Tools and VMware PowerCLI

Answer : D

Given that VMware Tools 11 or higher is installed on all virtual machines and VMware PowerCLI is available in the environment, the architect can leverage PowerCLI to interact with VMware Tools and collect information about active services running inside the virtual machines.

VMware PowerCLI allows you to query virtual machines for information about their services by accessing the guest operating system, provided VMware Tools is installed and running. You can use PowerCLI cmdlets to retrieve service data, such as which services are running on the VM, their statuses, and other details necessary for planning the migration.

This option is cost-effective since there is no budget available for additional discovery tooling, and it aligns well with the existing tools and infrastructure already in place.

Question 7

An architect is documenting the design for a new multi-site vSphere solution. The customer has informed the architect that the workloads hosted on the solution are managed by application teams who must perform a number of steps to return the application to service following a failover of the workloads to the secondary site. These steps are defined as the Work Recovery Time (WRT). The customer has provided the architect with the following information about the workloads, including the recovery time objective (RTO) and recovery point objective (RPO):

Critical workloads have a WRT of 12hours

Production workloads have a WRT of 24hours

Development workloads have a WRT of 24hours

All workloads have an RPO of 4hours

Critical workloads have an RTO of 1hour

Production workloads have an RTO of 12hours

Development workloads have an RTO of 24hours

The customer has also confirmed that production and development workloads are managed by the same team and the disaster recovery solution will not begin the recovery of the development workloads until all critical and production workloads have been recovered at the secondary site.

Which three statements would the architect document as the maximum tolerable downtime (MTD) for workloads within the design? (Choose three.)

ACritical Workloads: 12 hours

BDevelopment Workloads: 24 hours

CProduction Workloads: 36 hours

DCritical Workloads: 13 hours

EDevelopment Workloads: 60 hours

FProduction Workloads: 24 hours

Answer : A, B, F

Critical Workloads: 12 hours

For critical workloads, the recovery time objective (RTO) is 1 hour, and the work recovery time (WRT) is 12 hours. Since the customer can tolerate a maximum of 12 hours to restore these workloads after a disaster, the MTD for critical workloads is 12 hours.

Development Workloads: 24 hours

For development workloads, the RTO is 24 hours and the WRT is also 24 hours. Therefore, the MTD for development workloads is 24 hours because it is the maximum time that the customer can tolerate for these workloads to be unavailable.

Production Workloads: 24 hours

Production workloads have an RTO of 12 hours and a WRT of 24 hours. Since the disaster recovery solution waits for the recovery of critical and production workloads before recovering development workloads, the MTD for production workloads can be up to 24 hours, including the time to fully recover both critical and production workloads.

VMware 3V0-21.23 VMware vSphere 8.x Advanced Design Exam Practice Test