Free Practice Questions for Cisco 300-630 Exam

 When Leaf 1002 receives a packet from a host attached to Leaf 1001, it learns the MAC address of the source from Leaf 1001. Additionally, Leaf 1002 learns the IP address of the source.

References := Cisco APIC Layer 2 Networking Configuration Guide, Release 5.2(x)

For shared L3Out network connectivity among different tenants in a Cisco ACI fabric, a common tenant is necessary. It provides a global space for defining resources like L3Outs once, which can then be utilized by multiple tenants, simplifying management and ensuring consistent policy application. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

In a Cisco ACI Multi-Pod design, having separate Layer 3 Out (L3Out) connections for each pod is recommended when implementing active-standby firewalls in different pods. This setup allows for independent routing and failover mechanisms, ensuring that each pod can maintain external connectivity even if one firewall fails.

References := Implementing Cisco Application Centric Infrastructure Official Cert Guide

In an application-centric design, the creation of additional EPGs under one bridge domain is possible. This allows for greater flexibility in managing and segmenting network traffic for different applications or services within the same bridge domain.

References := Network Centric to ACI Centric Migration - Cisco

Implementing an active-active firewall cluster stretched across separate pods with anycast services configured offers several advantages, one of which is that it allows for optimized routing within the Cisco ACI fabric. When anycast services are used, each pod can have its own anycast node (firewall instance), and due to routing preferences set within ACI’s spine switches, they will prefer their local pod’s anycast node for routing decisions. This preference enhances efficiency by reducing cross-pod traffic and improving response times since local spines direct traffic to their respective local pod’s anycast nodes. References: Implementing Cisco Application Centric Infrastructure Official Cert Guide

The configuration set that accomplishes the goals of allowing communication between the external subnet and internal EPG1, as well as leaking L30ut traffic into VRF named “VF1”, is option D: Export Route Control Subnet Import Route Control Subnet Aggregate Shared Routes. This configuration ensures that routes are properly exported from one entity and imported into another while aggregating shared routes for efficient routing within the VRF “VF1”. It allows for controlled route leaking which is necessary for communication across different entities within a Cisco ACI environment. 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

To implement the vPC (Virtual Port Channel) in the Cisco ACI fabric, one should select a common vPC interface policy group (Option A), select common interface profiles (Option C), and select common switch profiles (Option E). These steps ensure that both switches in a vPC domain are configured with consistent policies and profiles for interfaces and switches. This consistency is crucial for the proper functioning of a vPC setup where two or more links that are physically connected to two different Cisco ACI leaf switches appear as a single “logical” port channel to a third device, like the depicted WebServer.

In Cisco ACI Multi-Pod, when ARP flooding is enabled, broadcast traffic within a bridge domain is managed by associating a multicast address to the bridge domain. The broadcast frames are then forwarded within the pod and across the Inter-Pod Network (IPN) using this multicast address.

References := Implementing Cisco Application Centric Infrastructure Official Cert Guide

 Anycast services in a Cisco ACI fabric allow services like firewalls to be stretched across multiple pods, providing high availability and resiliency. The correct setups for implementing anycast services include configuring the firewalls behind an EPG subnet ©and deploying a Layer 4 to Layer 7 service graph with Policy-Based Routing (PBR) (E). Modifying the ACI contract scope (A) or the MAC address on the second firewall (B) are not related to anycast service implementation. Deselecting No Default SVI Gateway under EPG Subnet (D) is not a setup for anycast services1. References := (Cisco APIC Online Help - About Anycast Services2)