Cisco® 300-620 Exam Practice Questions (P. 3)

GPT-4o - Answer

Absolutely right picks here! When connecting border leaf switches to an external router in Cisco ACI, your go-to options are typically subinterfaces with 802.1Q tagging and Switch Virtual Interfaces (SVIs). These interfaces let the switch communicate beyond the ACI fabric by allowing IP routing and VLAN tagging with external networks. Subinterfaces are perfect because they bring VLAN capabilities to a router link, a must-have for dividing traffic efficiently. On the other hand, SVIs enable routing on a switch, ensuring each VLAN can be managed individually without fuss. So, keep your focus on these interfaces when setting up connections to the outside world.

GPT-4o - Answer

When migrating a legacy environment to Cisco ACI, and particularly while setting up the ACI in application-centric mode, consider how multiple EPGs correlate within a single bridge domain (BD), often under differing VLAN tags. During the migration, it's beneficial to set Multi-Destination Flooding to "Flood in BD." This configuration allows for consistent flooding across the entire BD, ensuring that multicast, broadcast, and unknown unicast traffic is uniformly handled across multiple EPGs even with separate VLAN tags. This minimizes potential instability by maintaining traffic continuity between the ACI fabric and legacy systems.

GPT-4o - Answer

The correct action involves mapping the leaf interface selector to the Associated Application Entity Policy (AEP) linked with the VMM domain. This setup ensures that the newly added ESXi hosts are recognized under the correct virtual machine management domain, allowing streamlined management and connectivity within the Cisco ACI environment. This direct binding is essential in extending the domain's capabilities to accommodate additional hosts effectively.

GPT-4o - Answer

When extending an EPG outside of the ACI fabric using static path binding, the primary concern is how endpoints are identified and managed. For ACI, endpoint learning within this context focuses predominantly on the MAC addresses. The system logs the MAC address of devices communicating through the statically bound ports. This aspect of endpoint learning is crucial as it maintains the integrity and efficiency of network operations, ensuring that traffic management and access control policies continue to apply correctly even as the network extends beyond the immediate ACI fabric. Although extending the EPG to include external endpoints under the same policies seems viable, the understanding of endpoint learning based solely on MAC addresses is pivotal.