VMware 3V0-21.21 Exam Practice Questions (P. 5)
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Question #21
A Cloud Service Provider wants to introduce backup as a service for a customer's vSphere-based virtual machines.
The following information is noted:
✑ They have a single four-port (2 ֳ— 10 GbE and 2 ֳ— 1 GbE) NIC per ESXi host
✑ 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.)
The following information is noted:
✑ They have a single four-port (2 ֳ— 10 GbE and 2 ֳ— 1 GbE) NIC per ESXi host
✑ 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.)
- AEnable and tag traffic on the backup distributed port groupMost Voted
- BAdd a new two-port 10 GbE NIC per ESXi host
- CReplace the existing NIC with a two-port 25 GbE NIC per ESXi host
- DMatch the Class of Service (CoS) and Differentiated Services Code Point (DSCP) values to the physical networkMost Voted
- ECreate a new virtual switch using the 1 GbE uplinks
Correct Answer:
AB
AB

Incorporating backup as a service requires careful planning to ensure backup traffic won't impact existing services. Enabling and tagging backup traffic on a specified distributed port group allows it to be identified and managed distinctly within the network, ensuring minimal interference with other critical traffic. Similarly, adding a new two-port 10 GbE NIC per ESXi host is feasible and effective; it expands the host's networking capability without relying on the already fully utilized top-of-rack switches, thus accommodating additional backup traffic efficiently. This approach supports high performance and dedicated handling of backup services in a vSphere-based environment.
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Question #22
A customer has six hosts available in a cluster. When running at full capacity, all virtual machines can be run on two hosts.
How many hosts can the customer place into maintenance mode at the same time while still providing N+2 resiliency to the cluster?
How many hosts can the customer place into maintenance mode at the same time while still providing N+2 resiliency to the cluster?
- ATwoMost Voted
- BThree
- COne
- DNone
Correct Answer:
B
B

Given that two hosts can run all VMs at full capacity, assigning three hosts for redundancy provides N+2 resiliency, thus leaving three hosts available for maintenance. This optimizes cluster resource utilization while maintaining desired redundancy levels, confirming the correct choice of placing three hosts in maintenance mode simultaneously.
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Question #23
An architect is designing a series of new vSphere environments for an organization. The environments will be deployed in their US-East and US-West region data centers. Each data center may have one or more dedicated vSphere environments. Only the vSphere environments within a data center will be configured with
Enhanced Linked Mode. The Chief Technology Officer (CTO) has authorized the use of VMware vRealize Automation Cloud for automation. The build team creates standardized virtual machine images for various operating systems in Open Virtualization Format (OVF) and publishes the latest version on an as-needed basis to an internal HTTPS-accessible repository.
The architect must design a content library topology that meets the following requirements:
✑ A localized content library must be available in each data center.
Each content library must be updated when an image is updated and released by the build team.

✑ The cloud automation platform must be able to consume the latest approved content library images.
✑ It must leverage the existing build team processes.
What should the architect recommend to meet the requirements?
Enhanced Linked Mode. The Chief Technology Officer (CTO) has authorized the use of VMware vRealize Automation Cloud for automation. The build team creates standardized virtual machine images for various operating systems in Open Virtualization Format (OVF) and publishes the latest version on an as-needed basis to an internal HTTPS-accessible repository.
The architect must design a content library topology that meets the following requirements:
✑ A localized content library must be available in each data center.
Each content library must be updated when an image is updated and released by the build team.

✑ The cloud automation platform must be able to consume the latest approved content library images.
✑ It must leverage the existing build team processes.
What should the architect recommend to meet the requirements?
- AWork with the build team to create a local content library for each vSphere environment. Import the OVF images when new image are published to the repository.
- BCreate a local content library for the primary vSphere environment in each data center. Create a subscribed content library for each additional vSphere environment in each data center. Configure the content library to download content automatically.
- CWork with the build team to automate a JSON-based manifest to the repository when changes occur in the repository. Create a subscribed content library for each vSphere environment. Configure the content library to download content when needed.
- DWork with the build team to automate a JSON-based manifest to the repository when changes occur in the repository. Create a subscribed content library for each vSphere environment. Configure the content library to download content automatically.Most Voted
Correct Answer:
B
B
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Question #24
An architect is designing storage for a new vSphere environment to meet the following requirements:
✑ Asynchronous replication is required between two sites.
✑ The impact on the storage layer should not impact the performance of the compute layer.
✑ Each application tier will require different replication attributes.
✑ Virtual machine live migration across compute and storage must be supported.
✑ Virtual machine aware back up will be leveraged.
✑ Operational management overhead should be minimized.
✑ Operational automation should be supported.
Which storage design recommendations would meet the requirements?
✑ Asynchronous replication is required between two sites.
✑ The impact on the storage layer should not impact the performance of the compute layer.
✑ Each application tier will require different replication attributes.
✑ Virtual machine live migration across compute and storage must be supported.
✑ Virtual machine aware back up will be leveraged.
✑ Operational management overhead should be minimized.
✑ Operational automation should be supported.
Which storage design recommendations would meet the requirements?
- ATwo new Fibre Channel storage arrays will be deployed, one at either site. Each application tier will be initially provisioned a new LUN. Data replication will be offloaded to the new arrays.
- BTwo new vSphere clusters enabled with vSAN will be deployed, one at either site. vSAN will be used to provide policy-based management for each application tier. vSphere Replication will be used to replicate the virtual machine data in an asynchronous configuration.
- CTwo new ISCSI storage arrays will be deployed, one at either site. Each application tier will be initially provisioned a new LUN. Data replication will be offloaded to the new arrays.
- DTwo new storage arrays will be deployed, one at either site. vSphere Volumes (vVOLs) will be used to provide policy-based management for each application tier. Data replication will be offloaded to the new arrays.Most Voted
Correct Answer:
A
A

The choice of vVOLs, as seen in option D, effectively satisfies the diverse needs of the scenario presented by offering array-based asynchronous replication, reducing the impact on compute performance due to dedicated resources, and supporting distinct replication attributes per application tier. Moreover, vVOLs aid in operational management by easing automation and aligning with requirements for virtual machine-aware backups, making it a superior option considering all listed requirements. Thus, while the initial answer points to Fibre Channel storage arrays, the comprehensive functionality of vVOLs in option D seems to better meet the multifaceted requirements listed in the question.
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Question #25
An organization's data scientists are executing a plan to use machine learning (ML). They must have access to graphical processing unit (GPU) capabilities to execute their computational models when needed. The solutions architect needs to design a solution to ensure that GPUs can be shared by multiple virtual machines.
Which two solutions should the architect recommend to meet these requirements? (Choose two.)
Which two solutions should the architect recommend to meet these requirements? (Choose two.)
- ANVIDIA vGPUMost Voted
- BAMD MxGPU
- CvSphere DirectPath I/O
- DvSGA
- EvSphere BitfusionMost Voted
Correct Answer:
AE
Reference:
https://blogs.vmware.com/apps/files/2019/08/5521-VMW-GPU-MACHINE-LEARNING-GUIDE-USLET-WEB-20190812.pdf
AE
Reference:
https://blogs.vmware.com/apps/files/2019/08/5521-VMW-GPU-MACHINE-LEARNING-GUIDE-USLET-WEB-20190812.pdf

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