Cisco Implementing Cisco Application Centric Infrastructure - Advanced (DCACIA) 300-630 Exam Dumps: Updated Questions & Answers (October 2025)

In the given scenario where CDP is disabled, LLDP is enabled, and LACP is in Active mode between Cisco UCS FIs and Cisco ACI leaf switches for the DVS setup, the compatible discovery protocol would be LLDP since it’s already enabled. As for load-balancing mechanisms with this setup: MAC Pinning can be used without relying on any link discovery protocol like CDP or LACP; hence option B is valid. Option F suggests usingLACP in Passivemode, whichcould complement the existing Active mode on other devicesto establishan LACP negotiation successfully. References: =Implementing Cisco Application Centric Infrastructure Official Cert Guide

The integration of service nodes in transparent mode with a Cisco ACI Multi-Pod setup is achieved by using an active-standby firewall mode stretched across pods. This configuration ensures that the standby node takes over if the active node fails, providing high availability and seamless operation. References := Cisco ACI Multi-Pod and Service Node Integration White Paper

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.

 Migrating from Cisco NX-OS VXLAN to Cisco ACI fabric involves several considerations to minimize impact on workloads. Disabling bridge domain unicast routing while the default gateway remains in the VXLAN infrastructure ensures that the migration does not disrupt the existing traffic flow. This approach allows for a smoother transition by maintaining the current routing paths until the migration is complete123.

References := Implementing Cisco Application Centric Infrastructure Official Cert Guide

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

For intra-VRF transit routing between two external routers in different OSPF areas, OSPF virtual links are required. They connect non-contiguous areas to the backbone area, ensuring all areas can communicate even if not directly connected.

References := Implementing Cisco Application Centric Infrastructure Official Cert Guide

Cisco ACI uses a mapping of VXLAN Virtual Network Identifier (VNI) to multicast groups to facilitate multidestination packet forwarding between leaf switches within the same fabric. This approach allows for efficient communication and data packet distribution to multiple destinations simultaneously1.

References := Cisco ACI Multidestination Packet Forwarding Approach

The protocol used for exchanging MAC/IP address information for endpoints between spine switches in different pods within a Cisco Multi-Pod solution is MP-BGPEVPN (Multiprotocol BGP Ethernet VPN). This protocol facilitates scalable communication between separate locations by allowing MAC/IP address information sharing across pods. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

 To enable communication between the subnets 192.168.1.0/24 and 172.18.1.0/24 using Cisco ACI fabric, it is necessary to configure the subnets appropriately. For option B, setting 172.18.1.0/24 as an External subnet for an external EPG under L3out_A allows it to be recognized as part of an external network, facilitating communication with other networks within the ACI environment. Similarly, for option D, configuring 172.18.1.0/24 with the Export Route Control scope under L3out_B ensures that this route is advertised out of L3out_B, allowing it to reach other network segments, including those connected via L3out_A where the subnet 192.168.1.0/24 resides. These configurations are crucial for proper routing between these two distinct subnets across the Cisco ACI fabric.

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