D-VXR-DY-23 Sample Questions & Answers
Post-installation validation, license checks, and vSAN configuration take the top share, built on VxRail architecture basics, planning with internal or external vCenter, network setup, cluster initialization, upgrades, REST API use, and troubleshooting.
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- Question 1Intermediate
VxRail Network Environment Requirements and Initialization · Network validation procedures
A deployment engineer attempts to initialize a new VxRail cluster but fails immediately during the network validation phase. The error log indicates 'Host name resolution failed'. Upon checking the Network Validation Tool (NVT) report, the forward records are correct. What is the most likely cause of this error?
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Correct answer: D
VxRail initialization is extremely strict regarding DNS. Not only must the FQDN resolve to the IP (Forward/A Record), but the IP must also resolve back to the FQDN (Reverse/PTR Record). Missing PTR records are a common cause of initialization failure during validation.
- Question 2Advanced
Deploying the VxRail Cluster · VxRail initialization with an external vCenter Server
You are deploying a VxRail cluster using the 'External vCenter' option. The customer provides a vCenter Server Appliance (VCSA) that manages three other clusters. Which specific permission requirement must be met for the VxRail management user account in this scenario?
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Correct answer: A
For security in shared vCenter environments, the best practice (and requirement) is to grant the VxRail management user the 'Administrator' role specifically on the Datacenter object (and propagated to children) where the cluster will live. Global Root Administrator access is not strictly required if scoped correctly, but the user MUST have full administrative rights over the target Datacenter object to create cluster and host objects.
- Question 3Intermediate
VxRail Post-Deployment Procedures · Explain the vSAN configuration settings and configure required vSAN setting post-deployment
After successfully deploying a VxRail cluster, you need to configure the vSAN Storage Policy to ensure data is protected against a double disk failure. The cluster consists of 6 nodes. Which RAID configuration should you apply in the storage policy?
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Correct answer: D
To protect against a double failure (FTT=2), you need RAID-6 or RAID-1 (Mirroring) with FTT=2. RAID-6 is the capacity-efficient Erasure Coding method for FTT=2. It requires a minimum of 6 nodes (4 data + 2 parity), which matches the cluster size in the scenario.
- Question 4Advanced
VxRail Cluster Upgrade and Expansion · Describe VxRail upgrade requirements and activities
A customer wants to expand an existing 4-node VxRail P-Series cluster running version 7.0.400. They have purchased a new P-Series node that shipped with version 8.0.000 factory installed. What is the correct procedure to add this node to the cluster?
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Correct answer: B
VxRail clusters require added nodes to be at the same version or a compatible lower version that can be upgraded during addition. You cannot add a higher-version node to a lower-version cluster without re-imaging. The most efficient and non-destructive path (assuming the customer wants the new features) is to upgrade the cluster to match the new node (or higher). Alternatively, the new node must be RASR re-imaged to the lower version, but upgrading the cluster is generally the preferred forward path.
- Question 5Intermediate
VxRail Troubleshooting · Perform VxRail log collections
You are troubleshooting a VxRail node that is not being discovered by the VxRail Manager during initialization. You suspect an issue with the iDRAC network configuration. Which command can you use to reset the iDRAC configuration to factory defaults directly from the node's console?
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Correct answer: B
The
racadmutility is used for iDRAC management. The commandracadm racresetcfgresets the iDRAC configuration to factory defaults, which is a common step when troubleshooting discovery issues caused by incorrect prior configurations or static IP settings that prevent the automatic discovery process. - Question 6Intermediate
VxRail REST API · Identify REST API functionality available in VxRail and use VxRail API to perform tasks
A developer needs to automate the retrieval of the VxRail cluster's health status using the REST API. Which HTTP method and endpoint structure should be used for this request?
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Correct answer: D
In the VxRail API, retrieving information is done via
GETrequests. The/v1/systemendpoint provides high-level system information, including the overall health status of the cluster.POSTis used for creating resources or triggering actions, not for simple retrieval. - Question 7Beginner
Introduction to VxRail · Describe VxRail use cases, architecture, models, and software stack
Which of the following VxRail models is specifically optimized for Virtual Desktop Infrastructure (VDI) workloads requiring high-performance graphics?
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Correct answer: D
The VxRail V Series (VDI-optimized) is designed specifically for VDI workloads. It supports high-end GPU cards (like NVIDIA) to provide the necessary graphics acceleration for virtual desktops.
- Question 8Intermediate
VxRail Deployment Planning · Describe physical switches, NIC configurations, and DNS options
Case Study: A retail company is deploying a 3-node VxRail cluster at a remote branch office. The site has limited networking infrastructure.
Requirement: The deployment must support 25GbE connectivity, but the current switches only support 10GbE SFP+.
Constraint: No budget for new switches.
Question: Which action allows the deployment to proceed while meeting the immediate connectivity needs?
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Correct answer: A
Most 25GbE SFP28 network cards used in VxRail nodes are backward compatible with 10GbE SFP+ transceivers. By using 10GbE optics, the nodes can connect to the existing 10GbE switches. The cluster will negotiate at 10GbE speed, allowing deployment to proceed within the hardware constraints.
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