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  • Exam Name: Implementing Cisco Application Centric Infrastructure - Advanced (600-660 DCACIA)
  • Last Update: Sep 12, 2025
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600-660 Practice Exam Questions with Answers Implementing Cisco Application Centric Infrastructure - Advanced (600-660 DCACIA) Certification

Question # 6

What does the VXLAN source port add to the overlay packet forwarding when it uses the hash of Layer 2, Layer 3, and Layer 4 headers of the inner packet?

A.

ECMP

B.

TCP optimization

C.

disabled fragmentation

D.

jumbo frames

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Question # 7

What is the purpose of the Forwarding Tag (FTAG) in Cisco ACI?

A.

FTAG is used in Cisco ACI to add a label to the iVXLAN traffic in the fabric to apply the correct policy.

B.

FTAG is used in Cisco ACI to add a label to the VXLAN traffic in the fabric to apply the correct policy.

C.

FTAG trees in Cisco ACI are used to load balance unicast traffic.

D.

FTAG trees in Cisco ACI are used to load balance mutli-destination traffic.

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Question # 8

Refer to the exhibit.

600-660 question answer

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

A.

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

B.

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

C.

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

D.

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

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Question # 9

Which two components must be configured as stretched to establish intra-VRF communication between two EPGs that are deployed in different sites and different bridge domains? (Choose two.)

A.

contract

B.

tenant

C.

application profile

D.

bridge domain

E.

EPG

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Question # 10

Refer to the exhibit.

600-660 question answer

What must be configured in the service graph to redirect HTTP traffic between the EPG client and EPG server to go through the Cisco ASA firewall?

A.

contract filter to allow ARP and HTTP

B.

precise filter to allow only HTTP traffic

C.

contract with no filter

D.

permit-all contract filter

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Question # 11

Refer to the exhibit.

600-660 question answer

Which configuration must be implemented to allow intra-VRF transit routing between the two external routers?

A.

Deploy both areas under the same L3Out policy

B.

Change one of the areas to area 0

C.

Configure OSPF virtual links

D.

Modify L3Out 1 to use the same OSPF area as L3Out 2

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Question # 12

Refer to the exhibit.

600-660 question answer

Which three actions should be taken to implement the vPC in the Cisco ACI fabric? (Choose three.)

A.

Select a common vPC interface policy group

B.

Select individual interface profiles

C.

Select common interface profiles

D.

Select individual switch profiles

E.

Select common switch profiles

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Question # 13

An organization expands a Cisco ACI Multi-Pod from two to six pods and must ensure that the control plane scales. What should be configured in the IPN to ensure that BUM traffic is forwarded efficiently across the IPN?

A.

spine headend replication

B.

BIDIR-PIM

C.

MP-BGP

D.

MSDP

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Question # 14

An engineer configures a new Cisco ACI Multi-Pod setup. Which action should be taken for fabric discovery to be successful for the nodes in Pod 2?

A.

Select the Route Reflector field in Pod Peering

B.

Enable the DSCP class-cos translation policy for Layer 3 traffic

C.

Configure POD 2 Data Plane TEP under the Pod Connection Profile

D.

Add the IPN subnet under the Fabric External Routing Profile

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Question # 15

Refer to the exhibit.

600-660 question answer

A network engineer configures a Layer 4 to Layer 7 device for an outside routed firewall that is connected to POD-1 inside a Cisco ACI fabric that consists of two pods. All traffic from POD-1 or POD-2 that uses the L3Out should pass through the routed firewall. Which Function Type must be implemented in the service graph for POD-2 to use L3Out?

A.

GoThrough

B.

L1

C.

GoTo

D.

L2

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Question # 16

How is broadcast forwarded in Cisco ACI Multi-Pod after ARP flooding is enabled?

A.

For the specific bridge domain, all spines forward the broadcast frames to IPN routers

B.

Broadcast frames are forwarded inside the pod and across the IPN using the multicast address that is associated to the bridge domain

C.

Within a pod, the ingress leaf switch floods the broadcast frame on all fabric ports

D.

Ingress replication is used on the spines to forward broadcast frames in the IPN infrastructure

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Question # 17

Refer to the exhibit.

600-660 question answer

A customer implements Cisco ACI Multi-Site with default MTU settings between two sites. Which configuration should be applied on the interface Eth1/10 on the ISN-1 device?

600-660 question answer

600-660 question answer

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 18

In a Cisco ACI Multi-Site fabric, the Inter-Site BUM Traffic Allow option is enabled in a specific stretched bridge domain. What is used to forward BUM traffic to all endpoints in the same broadcast domain?

A.

ingress replication on the spines in the source site

B.

egress replication on the source leaf switches

C.

egress replication on the destination leaf switches

D.

ingress replication on the spines in the destination site

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