Implementing Cisco ACI Advanced (DCACIA) — Question 76

A Cisco ACI fabric is connected to a switched network that runs Spanning Tree Protocol on VLAN 101. VLANs 101, 102, and 103 are mapped to bridge domain BD10123.
The leaf node that is attached to this switched network receives a spanning-tree topology change notification. Which endpoints does ACI flush?

Answer options

• A. all endpoints associated with VLAN 102 or 103 in BD10123 on the spine node
• B. all endpoints associated with VLAN 101 in BD10123 on the leaf node
• C. all endpoints associated with VLAN 101, 102, and 103 in BD10123
• D. all endpoints associated with VLAN 101 in BD10123

Correct answer: C

Explanation

The correct answer is C because a topology change affects all VLANs within the same bridge domain. Thus, endpoints associated with VLANs 101, 102, and 103 in BD10123 need to be flushed. Options A and B are incorrect as they restrict the flushing to specific VLANs or nodes, and D is incorrect because it only considers VLAN 101.