Free Cisco 300-630 Exam Practice Questions & Explanations
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Refer to the exhibit.
Which two configurations enable inter-VRF communication? (Choose two.)
To enable inter-VRF communication, one must configure settings that allow subnets to be advertised externally and establish contract interfaces between VRFs. Option B, ''Enable Advertise Externally under the subnet scope,'' allows subnets to be advertised outside their home VRFs. Option E, ''Export the contract and import as a contract interface,'' enables communication between different VRFs by creating an exported contract from one VRF that can be imported into another as an interface contract.Reference:= Implementing Cisco Application Centric Infrastructure Official Cert Guide
What are two characteristics of Cisco ACI interaction with MSTP? (Choose two.)
Cisco ACI handles MSTP TCN frames by flushing local endpoints in the affected EPG to prevent stale entries. For MST BPDUs to traverse the ACI fabric, a dedicated EPG for the native VLAN with static bindings is required for MSTP-enabled external switches.Reference:= (Implementing Cisco Application Centric Infrastructure Official Cert Guide)
A customer is deploying a new application across two ACI pods that is sensitive to latency and jitter. The application sets the DSCP values of packets to AF31 and CS6, respectively. Which configuration changes must be made on the APIC to support the new application and prevent packets from being delayed or dropped between pods?
To support an application that is sensitive to latency and jitter, it is crucial to ensure that the Quality of Service (QoS) levels within the ACI fabric and the Inter-Pod Network (IPN) QoS policies are aligned. This alignment will help in maintaining consistent handling of the DSCP values set by the application (AF31 and CS6) as the packets traverse across the two ACI pods. By aligning the QoS levels and policies, the application's packets are less likely to experience delays or drops, thus preserving the required performance levels for the application's optimal functionality.
An engineer created a Cisco ACI environment in which multiple tenants reuse the same contract. The requirement is to prevent inter-tenant communication. Which action meets this requirement?
Refer to the exhibit.
Which three actions should be taken to implement the vPC in the Cisco ACI fabric? (Choose three.)
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.