When configuring DHCP on an NSX segment, you must choose between providing the service via a local DHCP server or a DHCP Relay. These two modes are mutually exclusive. If DHCP Relay is selected, the segment's gateway is configured to forward DHCP client requests to an external, pre-existing DHCP server. Consequently, all DHCP configurations, including IP address pools (DHCP settings), DHCP options, and static bindings, are managed by that external server. Therefore, these settings cannot be configured locally on the NSX segment itself, which represents a key design restriction.

B. DHCP client requests cannot be relayed to the external DHCP servers.

This is incorrect. The sole purpose of a DHCP Relay service is to forward, or relay, DHCP client requests to external DHCP servers located on different subnets.

C. DHCP settings, DHCP options, and static bindings can be configured on the segment.

This is incorrect. This describes the configuration for a local NSX DHCP server, which is mutually exclusive with the DHCP Relay service on the same segment.

D. DHCP Relay service is available to all the other segments in the network.

This is incorrect. DHCP services, including DHCP Relay, are configured on a per-segment basis. Enabling it on one segment has no effect on other segments.

1. VMware NSX-T Data Center Administration Guide (Version 3.2), "Configure DHCP for a Segment". The documentation outlines the process for DHCP configuration, presenting "Local DHCP Server" and "DHCP Relay" as distinct choices. When the DHCP Relay path is chosen, the configuration steps only involve specifying the IP address of the external DHCP server(s), not local pools or bindings. This demonstrates the mutual exclusivity of the services. (See Chapter: Logical Switching, Section: Configure DHCP for a Segment).

2. VMware NSX Data Center Product Documentation (Version 4.1), "Configure DHCP on a Segment". This guide states, "You can configure a local DHCP server or a DHCP relay on a segment." The use of "or" explicitly indicates that only one can be chosen. The configuration details for DHCP Relay do not include options for local static bindings or IP pools, as those are handled by the external server being relayed to. (See Chapter: Segments, Section: Configure DHCP on a Segment).