300-630 Exam Dumps and Practice Questions

In a Cisco ACI Multi-Site deployment, proper configuration of the inter-site link is crucial for traffic to pass between different sites. The MTU size is particularly important; if it's not set correctly, packets may be dropped or fragmented, leading to connectivity issues. By configuring the MTU on the link to be at least 100 bytes larger than that of the ACI fabrics, you allow for encapsulation overhead without packet drops due to exceeding MTU limits. Additionally, configuring the link as a routed subinterface using VLAN-4 is necessary for routing across different broadcast domains, which is essential for inter-site communication in an ACI fabric.Reference: Implementing Cisco Application Centric Infrastructure Official Cert Guide

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 limit IP address learning in BD1 when VM1 is incorrectly attached to a PortGroup, enabling the Enforce Subnet Check is the correct action. This feature ensures that only IP addresses belonging to the defined subnets under the bridge domain are learned, preventing incorrect IP data from being disseminated across the network.Reference:= ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

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.Reference: Implementing Cisco Application Centric Infrastructure Official Cert Guide

In a Cisco ACI fabric, when configuring a Layer 4 to Layer 7 device for routing traffic through an external firewall connected to the inside of the fabric, the appropriate Function Type in the service graph must be selected to ensure that traffic from both POD-1 and POD-2 passes through the routed firewall when using L3Out. The ''GoTo'' Function Type is used in scenarios where all traffic destined for L3Out needs to be redirected through a service node like a firewall. This ensures that regardless of the source pod, traffic will traverse the service node before exiting the fabric.Reference: Implementing Cisco Application Centric Infrastructure Official Cert Guide