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D-VXR-DS-00
Dell VxRail Design Questions and Answers

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Questions # 1:

An architect is designing a VxRail solution for a customer who needs vCenter HA.

Which vCenter Server platform options supports this requirement?

Options:

Use an existing VxRail-managed vCenter server

Use an existing Customer-supplied vCenter server

Use a new VxRail-managed vCenter server

Answer

Explanation

Only a new VxRail-managed vCenter Server platform supports the built-in vCenter HA capability required for high availability in VxRail environments.

Questions # 2:

What are three reasons that a customer would use VxRail Dynamic nodes? (Choose three.)

Options:

To use vSAN storage from an existing VxRail vSAN cluster

To use existing supported storage arrays

To use only vSphere Standard Switches

To optimize or reduce licensing costs

To use external storage in addition to local vSphere vSAN for tiering

Answer

A, B, E

Explanation

VxRail Dynamic Nodes enable the use of vSAN storage from an existing VxRail cluster.

They support integration with existing supported external storage arrays.

They allow use of external storage alongside local vSAN for tiering and optimized storage management.

Questions # 3:

A VxRail architect is planning to deploy a new cluster. The servers equipped with two network cards with different uplink speeds between the two cards.

What vSphere Distributed Switch design should be used to ensure the highest performance and security?

Options:

Guest VM traffic assigned only to a single top of rack switch

Resource-intense networks like vSAN assigned to higher speed uplinks

A predefined network profile with 4x10 Gb or 4x25 Gb interface speed

Maximum Transmission Unit set to 9000

Two new vSphere Distributed Switches

Answer

Explanation

Assigning resource-intensive networks like vSAN to the higher speed uplinks ensures that critical traffic benefits from the best available network performance, optimizing throughput and maintaining security by separating traffic types appropriately.

Questions # 4:

A customer is planning to expand an existing VxRail vSAN cluster. Their current rack is full, so the cluster has to expand to an additional rack. Due to networking requirements, each rack is a Layer 2 boundary, so the new nodes require new management, vSAN, and vMotion subnets.

When designing the solution, what are two considerations that the architect should consider? (Choose two.)

Options:

Automatic node discovery is not supported; manual discovery must be used.

VxRail Manager must remain in the first rack.

vSAN ESA is not supported. Only vSAN OSA is supported.

VMware Cloud Foundation is not supported.

Answer

A, B

Explanation

Because each rack is a Layer 2 boundary with different subnets, automatic node discovery is not supported, so manual discovery is required.

VxRail Manager must remain in the original rack to maintain cluster management continuity across racks.

Questions # 5:

What are two rules for witness on a VxRail stretched cluster? (Choose two.)

Options:

The Witness appliance is the same for vSAN ESA and vSAN OSA architecture.

It must be the same vSphere version as the VxRail nodes.

It must be deployed in advance.

It can be managed by a separate vCenter than the one managing the VxRail cluster.

Only a virtual appliance is supported.

Answer

A, D

Explanation

The witness appliance is the same for both vSAN ESA and OSA architectures, providing consistency across deployments.

The witness can be managed by a separate vCenter server than the one managing the VxRail cluster, allowing flexible management options.

Questions # 6:

What is a result of using the VxRail Sizing Tool to size a new cluster?

Options:

The lowest price solution is the recommended configuration.

The highest price solution is the recommended configuration.

Single workloads are only considered when sizing the new cluster.

Answer

Explanation

The VxRail Sizing Tool focuses on the specific workload requirements provided, sizing the cluster based on single or combined workload profiles rather than price considerations.

Questions # 7:

Which tool can be used to gather application and virtual environment workload of an existing environment?

Options:

VxRail Sizer

Live Optics

VxRail Configuration Portal

Secure Connect Gateway

Answer

Explanation

Live Optics is the tool designed to gather detailed application and virtual environment workload data from existing environments to aid in sizing and planning VxRail deployments.

Questions # 8:

What are the two types of port groups of vSphere Distributed Switches? (Choose two.)

Options:

Virtual machine port groups

Uplink port groups

VMkernel port groups

[Distributed port groups

Answer

A, C

Explanation

The two types of port groups on a vSphere Distributed Switch are Virtual Machine port groups (for VM traffic) and VMkernel port groups (for host management, vSAN, vMotion, etc.).

Questions # 9:

What are three supported VxRail Stretched Cluster configuration? (Choose three.)

Options:

All flash on Site A and hybrid on Site B

L2 and L3 site-to-site connectivity

vSAN ESA on Site A and vSAN OSA on Site B

Two nodes and a witness

Four nodes and a witness

Answer

B, D, E

Explanation

Both Layer 2 (L2) and Layer 3 (L3) site-to-site connectivity are supported for VxRail stretched clusters.

Configurations with two nodes plus a witness and four nodes plus a witness are supported cluster sizes for stretched clusters, providing fault tolerance across sites.

Questions # 10:

Which document from the VxRail Configuration Portal can be used to validate site readiness before a deployment?

Options:

Getting Started Guide

Pre-deployment Checklist

Deployment Planning Guide

Configuration Report

Answer

Explanation

The Pre-deployment Checklist from the VxRail Configuration Portal is used to validate site readiness by ensuring all necessary prerequisites and environment conditions are met before deployment.

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