Free Practice Questions for Cisco 300-630 Exam

 In Cisco ACI, shared services like firewalls should be configured in the common tenant. This allows all tenants to access the services without duplicating them in each tenant.

 To set up the link between the spine and the IPN device in a Cisco ACI Multi-Pod, the following actions should be taken: A. Enable MP-BGP routing to facilitate the exchange of routing information. B. Enable BIDIR-PIM protocol to support efficient multicast traffic forwarding. D. Enable OSPF routing to ensure dynamic routing between the spine and IPN devices.

 The correct configuration to prefer the local Policy-Based Routing (PBR) node and redirect traffic to the remote pod PBR node in case of catastrophic failure is option D: location-based PBR, host route advertisement, and node tracking. Location-based PBR allows for the selection of a preferred path based on the location of the traffic source or destination. Host route advertisement enables specific routing information to be propagated throughout the network, which can be used to influence traffic flow. Node tracking provides a mechanism to monitor node status and reroute traffic if a node becomes unavailable due to failure. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

 In a Cisco ACI Multi-Pod environment that is expanding, spine headend replication should be configured to ensure efficient forwarding of BUM (Broadcast, Unknown unicast, Multicast) traffic across the IPN (Inter-Pod Network). This configuration optimizes the control plane scaling and ensures that BUM traffic is handled effectively, maintaining network performance and stability.

References: Implementing Cisco Application Centric Infrastructure Official Cert Guide

 In a Cisco ACI fabric, multicast traffic is managed using FTag trees that are rooted at the spine nodes. The Cisco APIC automatically determines the roots of these trees. This method optimizes the distribution of multicast traffic across the fabric by leveraging the spine nodes as centralized points for multicast routing and replication456.

References := Implementing Cisco Application Centric Infrastructure Official Cert Guide

 In Cisco ACI fabric, STP BPDUs are flooded in the bridge domain VLAN. This allows the BPDUs to be propagated throughout the fabric, maintaining the STP topology2.

References := Implementing Cisco Application Centric Infrastructure Official Cert Guide

 In Cisco ACI fabric, when a Layer 2 unknown unicast packet is encountered, the fabric does not drop the packet. Instead, it uses a flooding mechanism to ensure that the packet reaches its potential destination. This is achieved by utilizing the VRF (Virtual Routing and Forwarding) Outer Multicast Group ID associated with the Bridge Domain (BD) to which the unknown destination MAC address belongs. By doing so, Cisco ACI ensures that all endpoints within the BD have an opportunity to receive and process the packet if they are indeed the intended recipient. References: Implementing Cisco Application Centric Infrastructure Official Cert Guide

 In Cisco ACI, to reassign a unique globally scoped pcTag to an Endpoint Group (EPG) that provides a global contract, one should configure subnets that are shared between VRFs (Virtual Routing and Forwarding instances) (Option C). This action allows subnets associated with an EPG to be shared across different VRFs while maintaining unique identifiers for application endpoint groups within the global scope of the fabric.

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

When Server A is connected to the Cisco ACI fabric using teamed interfaces with one active and one standby interface, enabling ARP flooding ensures that the ACI fabric can learn about the new active interface after a failover. This allows for seamless communication continuity even when the standby interface becomes active and starts sending traffic with its built-in MAC address.