Cisco Updated 300-630 Exam Questions and Answers by uthman

 To address loops detected from endpoints in a Cisco ACI fabric, the engineer should enable the rogue endpoint feature and set the Error Disabled Recovery Policy. This will allow the system to detect rogue endpoints causing loops and automatically recover the port if it was disabled due to the loop detection2.

References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

 In a scenario where an organization deploys active-active data centers with active-standby firewalls in each data center within a Cisco ACI Multi-Pod environment, maintaining traffic symmetry through firewalls is crucial for consistent security policy enforcement and avoiding asymmetric routing issues. Enabling Pod ID Aware Redirection allows for intelligent redirection of traffic based on pod identification numbers so that return traffic can be directed back through the same path it originated from, thus maintaining symmetry even in complex multi-pod deployments. References: Implementing Cisco Application Centric Infrastructure Official Cert Guide

Removing pre-existing Fibre Channel over Ethernet (FCoE) configurations from Nexus devices is necessary to ensure compatibility with Cisco ACI mode. FCoE configurations are not supported in ACI mode, and their presence can hinder the migration process2.

The outer destination IP address in the VXLAN encapsulated packet for Layer 2 Broadcast, Unknown-unicast, and Multicast (BUM) traffic sent between two Cisco ACI sites is the Overlay Multicast TEP (Tunnel Endpoint). This address ensures efficient replication of BUM traffic across different sites in the ACI fabric.

References := Cisco APIC Layer 2 Networking Configuration Guide