D-VXR-DY-02 Sample Questions & Answers
Choosing and running the right deployment method, plus adding or expanding nodes, is the largest piece, framed by preparing nodes and a customer-managed vCenter beforehand and validating the install and SCG connectivity afterward.
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- Question 1Beginner
Pre-deployment · Determine and verify install requirements
True or False: When preparing DNS for a new VxRail deployment, both Forward (A) and Reverse (PTR) records are strictly required for the ESXi hosts, VxRail Manager, and vCenter Server.
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Correct answer: A
True. VxRail pre-installation validation strictly checks for the presence of both Forward (A) and Reverse (PTR) DNS records for all primary infrastructure components (ESXi hosts, vCenter, VxRail Manager). If any are missing, the validation will fail.
- Question 2IntermediateSelect 2
Pre-deployment · Gather needed information for deployment
During the pre-deployment phase, an engineer is filling out the configuration parameters. Which TWO pieces of information must be provided specifically for the vSAN network? (Select TWO)
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Correct answers: B, E
The vSAN network requires a starting IP address (which will be incremented for each node) and a VLAN ID to segregate the storage traffic. Hostnames are not assigned to vSAN interfaces, and a Default Gateway is typically only required if routing vSAN traffic (L3), but starting IP and VLAN ID are always required.
The vSAN network requires a starting IP address (which will be incremented for each node) and a VLAN ID to segregate the storage traffic. Hostnames are not assigned to vSAN interfaces, and a Default Gateway is typically only required if routing vSAN traffic (L3), but starting IP and VLAN ID are always required.
- Question 3Intermediate
Pre-deployment · Correct basic pre-install validation errors
A deployment engineer runs the pre-install validation tool on a VxRail Manager before starting the build. The tool reports an error regarding MTU mismatch.
What is the most common cause of this specific validation failure?
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Correct answer: B
An MTU mismatch during pre-install validation almost always occurs because the deployment configuration specifies Jumbo Frames (MTU 9000) for vSAN and/or vMotion, but the upstream Top-of-Rack (ToR) switch ports have not been configured to allow frames larger than the default 1500 bytes.
- Question 4Beginner
Pre-deployment · Gather needed information for deployment
When planning IP addresses for a standard 4-node VxRail cluster using an internally deployed vCenter Server, how many IP addresses MUST be allocated for the Management network, excluding the network gateway and broadcast addresses?
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Correct answer: B
For a 4-node cluster with internal vCenter, you need 7 Management IPs: 4 for the ESXi hosts (one per node), 1 for the VxRail Manager, 1 for the vCenter Server, and 1 for the optional but highly recommended VxRail Log Insight / syslog integration (or historically, PSC if separate, but 7 is the standard baseline count for core management components).
- Question 5Intermediate
Pre-deployment · Correct basic pre-install validation errors
During a pre-deployment network validation, the VxRail Manager reports that the NTP server is unreachable. The network engineer confirms that the IP address is correct and the NTP server is online.
Which of the following is the most likely reason for this failure?
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Correct answer: C
NTP operates over UDP port 123. If the NTP server is online and the IP is correct, a firewall blocking this specific port is the most common reason for NTP validation failure during pre-deployment.
flowchart LR VxM[VxRail Manager] -->|UDP 123| FW[Firewall] FW --x|Blocked| NTP[NTP Server] - Question 6Advanced
Pre-deployment · Prepare a customer-managed vCenter
A customer is providing a customer-managed vCenter for a new VxRail deployment. To ensure the VxRail Manager can properly configure the cluster, an account must be provided in the deployment wizard.
What minimum permission level must this account have in the customer-managed vCenter?
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Correct answer: B
For a customer-managed vCenter, the VxRail deployment requires an account with Administrator privileges applied at the Datacenter level (where the VxRail cluster will be created) and set to propagate to children. Global root access is not strictly required, but Datacenter-level admin is mandatory.
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