350-401 Question 96
Single answerYou are tasked with configuring data path virtualization for a multi-tenant environment in a data center. You need to isolate traffic between different tenants while ensuring minimal impact on bandwidth and without requiring changes to the tenant devices. Which technology would you use to achieve this?
- A
Virtual Routing and Forwarding (VRF)
- B
VLAN Trunking Protocol (VTP)
- C
Network Address Translation (NAT)
- D
VXLAN (Virtual Extensible LAN)
Show answer and explanation
Correct answer: D
Explanation
The scenario requires a solution that can isolate tenant traffic in a multi-tenant environment without requiring changes to tenant devices. VXLAN is the ideal choice as it virtualizes the data path by encapsulating Layer 2 traffic over a Layer 3 network, providing scalability and tenant isolation. Other options such as VRF, VTP, and NAT do not meet all the requirements of the scenario.
- A. Incorrect.
Virtual Routing and Forwarding (VRF) allows multiple routing instances to coexist on the same router, but it does not inherently virtualize the data path at Layer 2, which is required for tenant isolation in this scenario.
- B. Incorrect.
VLAN Trunking Protocol (VTP) helps manage VLAN configurations across switches but does not provide the scalability or Layer 2 over Layer 3 virtualization required for large multi-tenant environments.
- C. Incorrect.
Network Address Translation (NAT) is used for translating IP addresses and is not related to data path virtualization or tenant traffic isolation.
- D. Correct.
VXLAN (Virtual Extensible LAN) extends Layer 2 networks over Layer 3 infrastructure, allowing traffic isolation for multi-tenant environments without requiring modifications to tenant devices. This aligns with the scenario requirements.