Cisco ACI Leaf IP, MAC, and VXLAN/VLAN Table

A.

The table that holds IP address, MAC address, and VXLAN/VLAN information on a Cisco ACI leaf is the endpoint table.

The endpoint table in a Cisco ACI fabric is a centralized database that holds information about the location and identity of endpoints (hosts, servers, virtual machines, etc.) connected to the fabric. Each leaf switch in the fabric maintains an endpoint table that contains information about the endpoints connected to it.

The endpoint table is populated by the endpoint learning process, which occurs when an endpoint sends or receives traffic in the fabric. When an endpoint is detected, the ACI fabric creates an entry in the endpoint table, which includes information such as the endpoint's IP address, MAC address, and VLAN or VXLAN information.

The endpoint table is used by the ACI fabric to enforce policies and provide visibility and control over traffic flows. For example, when traffic enters the fabric, the ACI fabric looks up the destination endpoint in the endpoint table to determine the correct forwarding path and to apply any applicable policies, such as security policies, quality of service (QoS) policies, or network service policies.

In contrast, the adjacency table is a data structure used by the ACI fabric to maintain information about the neighboring switches and interfaces in the fabric, while the RIB (Routing Information Base) and ARP (Address Resolution Protocol) are used by the ACI fabric to maintain routing and addressing information for IP networks.

Therefore, the correct answer to the question is A, the endpoint table.