3V0-21.21 Online Practice Questions and Answers

An architect is finalizing the design for a new vCenter Server High Availability deployment.

What is one thing the architect must document in the design?

A. The load balancing algorithm used by the Management Distributed Virtual Switches (DVS)

B. The SSH configuration settings for the vCenter Server's active node

C. The vCenter Management Network IPv4 addresses for the witness node vCenter Server

D. The details of each of the vCenter Server licenses for active, passive and witness nodes

An architect is reviewing a physical storage design. The customer has specified that storage DRS will be used for ease of operational management for capacity and performance.

Which recommendation should the architect include in the design?

A. Create smaller datastores to balance space with Storage DRS

B. Use a larger number of storage profiles (varied disk speeds and RAID levels) to improve performance

C. Create larger datastores to balance space with Storage DRS

D. Create more datastores within each Storage DRS cluster to balance space and performance

An architect is tasked with planning the design of a new vSphere environment. When commissioned, this environment will be used to migrate an existing set of virtual machines.

An inventory of the existing infrastructure, including configured vCPU, RAM and storage sizes has been provided.

In order for each virtual machine to be migrated, which two data sources with peak and average utilization data are required for sizing? (Choose two.)

A. %Ready

B. Disk Write latency

C. CPU

D. Ballooned memory

E. IOPS

A Cloud Service Provider wants to introduce backup as a service for a customer's vSphere-based virtual machines.

The following information is noted: All top-of-rack (ToR) switches are 10 GbE and fully populated The backup traffic must not impact existing services

Which two recommendations should the architect make to help the customer incorporate the service? (Choose two.)

A. Enable and tag traffic on the backup distributed port group

B. Add a new two-port 10 GbE NIC per ESXi host

C. Replace the existing NIC with a two-port 25 GbE NIC per ESXi host

D. Match the Class of Service (CoS) and Differentiated Services Code Point (DSCP) values to the physical network

E. Create a new virtual switch using the 1 GbE uplinks

An architect is tasked with designing a greenfield VMware software-defined data center (SDDC) solution that will be used to deliver a private cloud service for a customer.

During the initial meeting with the service owner and business sponsor, the customer has provided the following information to help inform the design: The solution must support the concurrent running of 1,000 virtual machines The production environment must be delivered across two geographically dispersed data centers All virtual machines must be capable of running in either data center. The two data centers are currently connected to each other through a single but diversely routed, high bandwidth and low latency link. The link between the two data centers is capable of supporting a round-trip time (RTT) of 150 ms The existing server hardware standard document states that all virtual infrastructure hosts must be deployed using vSAN ReadyNodes The service owner has stated that it is critical to ensure the availability target of 99.9% All virtual machine backups must be completed using the existing backup service The recovery time objective (RTO) for the service is five minutes The recovery point objective (RPO) of the service is four hours

Which two elements represent risks to the successful delivery of this solution? (Choose two.)

A. The use of only two data centers

B. The network connectivity between data center sites

C. The use of vSAN ReadyNodes

D. The RTT on the link between the two data centers

E. The use of the existing backup service

An architect is designing a vSphere environment for a customer and learns that the customer has:

A single vSphere cluster Two storage arrays with different RAID capabilities

Which two design decisions should the architect make to maximize data availability and data performance for this customer? (Choose two.)

A. Use Storage DRS.

B. Use VMDK anti-affinity rules.

C. Use multiple datastores for heartbeat.

D. Use a minimum of three storage arrays.

E. Use VM to host DRS rules.

An architect is designing a new vSphere cluster. The requirement is to provide a total of 96 CPU cores and

1.5 TB RAM across all hosts.

The following information has been provided:

Two different physical hardware profiles are available for the ESXi hosts in the cluster.

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Profile 1: 16 CPU cores and 256 GB RAM

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Profile 2: 32 CPU cores and 512 GB RAM

Profile 2 is twice as expensive to purchase as Profile 1.

Which two aspects should the architect consider when selecting the hardware profile? (Choose two.)

A. The manufacturer and model of the CPUs in the hosts

B. The amount of capacity available for failover of virtual machines within the cluster

C. The downtime allowed for virtual machines that will be running within the cluster

D. The cost to procure and maintain the hardware

E. The number of virtual machines that will be running within the cluster

An architect is tasked with designing a new VMware software-defined data center (SDDC) solution for an

online retail customer who has a primary and secondary data center as well as 10 distribution hubs.

The customer has provided the following business requirements to help inform the design:

The solution must support the running of up to 1,000 concurrent virtual machines across the primary and

secondary data center.

The solution must support the running of up to 20 concurrent virtual machines in each distribution hub.

The solution must support the separation of management and lines-of-business application virtual

machines.

All management components (including directory services, backup, automation, operations and logging)

must be deployed to the primary data center.

All virtual infrastructure components must have redundancy of N+1.

All sites are connected to each other using a wide area network that has multiple diversely routed links.

The solution should support a monthly uptime target of 99.9%.

The recovery time objective (RTO) for the solution must be four hours.

The recovery point objective (RPO) for the solution must be 24 hours.

Given the information from the customer, which assumption should the architect include in the design?

A. All business application virtual machines can be deployed into a single cluster within the primary data center.

B. Each distribution hub should be configured with a backup device.

C. The wide area network has sufficient bandwidth to support centralized management.

D. Each cluster will have a minimum of four hosts.

Which requirement would be classified as a functional requirement within the application design documentation?

A. The application must be hosted with redundancy levels of N+1 or better.

B. Penetration testing must be executed quarterly with a pass rate of 80% or higher.

C. The application must be capable of handling 200 transactions per second.

D. Administrators must monitor the network traffic of the desired systems.

Which requirement would be classified as a functional requirement within the design documentation?

A. The system must perform virtual machine backups through an API.

B. Virtual machines must be patched within one month of the patch release date.

C. Virtual machines must be restarted within 30 minutes of a host failure.

D. The system must be able to scale to support 500 concurrent virtual machines.