2V0-41.24 Question 163
Single answerA network administrator is configuring an NSX-T Data Center environment and needs to determine whether to use routing or bridging for a specific use case. The environment has VLAN-backed workloads that must communicate with overlay-backed workloads, and the goal is to maintain scalability and enable inter-subnet communication. Which approach should the administrator use in this scenario?
- A
Use bridging to connect the VLAN-backed and overlay-backed workloads, as bridging operates at Layer 2 and maintains the same broadcast domain.
- B
Use routing to connect the VLAN-backed and overlay-backed workloads, as routing operates at Layer 3 and allows communication across different subnets.
- C
Use bridging to enable inter-subnet communication, as bridging supports Layer 3 routing capabilities in a scalable manner.
- D
Use routing to maintain the same broadcast domain across VLAN-backed and overlay-backed workloads, ensuring scalability.
Show answer and explanation
Correct answer: B
Explanation
In NSX-T Data Center, routing is used for inter-subnet communication, as it operates at Layer 3 and facilitates communication between VLAN-backed and overlay-backed workloads. Bridging, on the other hand, operates at Layer 2 and is primarily used to extend broadcast domains but does not support inter-subnet communication or scalability. In this scenario, where scalability and communication across subnets are required, routing is the correct choice.
- A. Incorrect.
This is incorrect because bridging operates at Layer 2 and is typically used to extend broadcast domains between VLAN and overlay networks. While bridging can connect VLAN-backed and overlay-backed workloads, it does not provide scalability or inter-subnet communication, which is the requirement in this scenario.
- B. Correct.
This is correct because routing operates at Layer 3 and is designed for inter-subnet communication. It allows VLAN-backed and overlay-backed workloads to communicate across different subnets, meeting the requirements for scalability and inter-subnet communication.
- C. Incorrect.
This is incorrect because bridging does not support Layer 3 routing capabilities. Bridging is limited to Layer 2 operations and cannot be used for inter-subnet communication.
- D. Incorrect.
This is incorrect because routing does not maintain the same broadcast domain. Routing enables communication between different subnets and operates at Layer 3, which inherently separates broadcast domains.