Implementing Cisco Application Centric Infrastructure - Advanced

Here you have the best Cisco 600-660 DCACIA practice exam questions

You have 31 total questions to study from
Each page has 5 questions, making a total of 7 pages
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This questions were last updated on May 17, 2025
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Question 1 of 31

Refer to the exhibit. How is the ARP request from VM1 forwarded when VM2 is not learned in the Cisco ACI fabric?

Leaf 101 forwards the ARP request to one of the proxy VTEP spines.

POD1 spine responds to the ARP request after the POD1 COOP is updated with the VM2 location.

Leaf 101 encapsulates the ARP request into a multicast packet that is destined to 225.0.37.192.

Leaf 101 switch consumers the ARP reply of VM2 to update the local endpoint table.

Correct Answer: C

In the exhibit, ARP flooding is disabled, and the option for IP data-plane learning is enabled with the 'Limit IP Learning to Subnet' option also checked. These settings suggest that multicast-based forwarding is used for unknown unicast and ARP traffic. Therefore, if VM2 is not learned in the Cisco ACI fabric, Leaf 101 would encapsulate the ARP request into a multicast packet destined to 225.0.37.192 for efficient distribution across the network.

Question 2 of 31

Which approach does Cisco ACI use to achieve multidestination packet forwarding between leaf switches in the same fabric?

Map VXLAN VTEP to the multicast group

Map VXLAN to PIM-SM protocol

Map VXLAN VNI to the multicast group

Map VXLAN to PIM-DM protocol

Correct Answer: C

Cisco ACI maps VXLAN VNIs (Virtual Network Identifiers) to multicast groups for efficient forwarding of multidestination traffic between leaf switches in the same fabric. This approach allows the network to handle multicast, broadcast, and unknown unicast traffic effectively by using the multicast group to distribute these types of packets across the relevant switches.

Question 3 of 31

An organization migrates its virtualized servers from a legacy environment to Cisco ACI. VM1 is incorrectly attached to PortGroup IT|3TierApp|Web. Which action limits IP address learning in BD1?

Enable Enforce Subnet Check

Enable Rouge Endpoint Control

Enable GARP-based EP Move Detection Mode

Disable Remote EP Learn

Correct Answer: A

To limit IP address learning in BD1, the appropriate action to take is to enable Enforce Subnet Check. This setting ensures that only IP addresses within the defined subnet are learned, preventing the learning of any IP addresses that do not belong to the specified subnet, thus maintaining the security and integrity of the network.

Question 4 of 31

Refer to the exhibit. What must be configured to allow the PBR node (LB-int) to monitor the availability of the endpoint that is in the EPG server?

Endpoint Dataplane Learning

Unicast Route disabled for client and server bridge domains

PBR node tracking

Direct Connect in the service graph template

Correct Answer: D

To allow the PBR node (LB-int) to monitor the availability of the endpoint in the EPG server, Direct Connect in the service graph template must be configured. This ensures proper connectivity and monitoring capability within the network structure shown in the exhibit.

Question 5 of 31

DRAG DROP -

A leaf receives unicast traffic that is destined to an unknown source, and spine proxy is enabled in the corresponding bridge domain. Drag and drop the Cisco ACI forwarding operations from the left into the order the operation occurs on the right.

Select and Place:

Correct Answer: