2V0-41.24 Question 179
Single answerAn organization is deploying a VMware NSX-T Data Center environment and intends to use DHCP for IP address allocation in its logical networks. The organization needs to ensure that virtual machines receive IP addresses from an external DHCP server located in the physical network. How should the DHCP service be configured in this scenario?
- A
Configure a DHCP Relay service on the Tier-1 Gateway to forward DHCP requests to the external DHCP server.
- B
Enable the built-in DHCP Server on the Tier-0 Gateway to allocate IP addresses to virtual machines.
- C
Deploy a dedicated DHCP Relay VM in the NSX-T environment to forward requests to the external DHCP server.
- D
Configure a DHCP Relay service on the Tier-0 Gateway to forward DHCP requests to the external DHCP server.
Show answer and explanation
Correct answer: A
Explanation
To enable IP address allocation from an external DHCP server in an NSX-T environment, a DHCP Relay service must be configured. The preferred configuration is to enable DHCP Relay on the Tier-1 Gateway, as it provides a closer integration with logical switches and more granular network management. The Tier-0 Gateway would typically handle north-south traffic and is not ideal for per-logical network DHCP configurations. Using an external DHCP server ensures the organization's existing DHCP infrastructure is leveraged effectively.
- A. Correct.
Correct. The DHCP Relay service on the Tier-1 Gateway can forward DHCP requests from logical switches to an external DHCP server, which is the appropriate setup for this scenario.
- B. Incorrect.
Incorrect. The built-in DHCP Server in NSX-T is used when NSX-T itself is managing DHCP. Since the requirement is to use an external DHCP server, this option is not applicable.
- C. Incorrect.
Incorrect. Deploying a dedicated DHCP Relay VM is unnecessary because NSX-T provides DHCP Relay capabilities natively at the gateway level.
- D. Incorrect.
Incorrect. While a DHCP Relay service can be configured on the Tier-0 Gateway, DHCP Relay at the Tier-1 Gateway is preferred in this scenario as it aligns with logical network design and allows more granular control over individual logical switches.