Cisco Updated 300-630 Exam Questions and Answers by ned

The design approach shown in the exhibit is application-centric. This model focuses on the application requirements and defines network policies based on the needs of the application rather than traditional network constructs. It allows for a more dynamic and flexible network configuration that aligns with the application’s behavior and interactions.

ACI spine switches use the Council Of Oracles Protocol (COOP) mechanism to maintain a consistent copy of endpoint address and location information. COOP is responsible for distributing this critical data among spines so that each has an accurate view of network endpoints, which is essential for efficient packet forwarding within an ACI fabric. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

Protocol Independent Multicast sparse mode (PIM-SM) is designed for efficient routing to multiple receivers in a multicast group across an inter-pod network (IPN). PIM sparse mode is best suited for environments where receivers are dispersed because it allows for explicit join messages to control the flow of traffic. This makes it ideal for scenarios where broadcast, unknown unicast, and multicast flooding between Cisco ACI pods is required. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

Enabling ARP flooding is necessary when VMs are migrated from a pre-existing network to Cisco ACI and their gateways remain in the legacy setup. This allows the ACI fabric to learn about silent hosts that do not initiate communication, ensuring that the migrated VMs can communicate with all hosts in the network, including those that are silent.