Cisco 300-630 DCACIA Exam Questions Instant Access

Question 1

An engineer is deploying a Cisco ACI fabric and discovers that the traffic to certain endpoints is dropped. The originating bridge domain is configured with hardware proxy. Which action prevents this problem?

ASet the L2 Unknown Unicast option to Flood for Layer 2 switched traffic.

BSet the L2 Unknown Unicast option to Hardware-Proxy for Layer 2 switched traffic.

CEnable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.

DDisable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.

Answer : A

When traffic to certain endpoints is dropped in a Cisco ACI fabric configured with hardware proxy, setting the L2 Unknown Unicast option to Flood for Layer 2 switched traffic can prevent this problem.This mode allows unknown unicast traffic to be flooded within the bridge domain, rather than being sent to the spine proxy and potentially discarded if the destination is unknown5.

Question 2

What are two characteristics of network-centric design in Cisco ACI? (Choose two.)

AThere is open communication between EPGs

BEPGs are used for micro segmentation

CEPGs are different security zones

DApplications define the network requirements

EA bridge domain has one subnet and one EPG

Answer : A, E

In a network-centric design within Cisco ACI, there is open communication between EPGs, and a bridge domain typically has one subnet and one EPG. This design is often used for initial migrations and is based on traditional networking concepts.

Question 3

What is a characteristic of application-centric design in Cisco ACI?

AOne-to-one mapping between EPGs and bridge domains Is enforced.

BA bridge domain has only one subnet.

CEPGs represent different application tiers.

DIt simplifies gradual migration from a traditional network.

Answer : C

An application-centric design in Cisco ACI focuses on the application requirements and interactions between different application components. In this design, EPGs (Endpoint Groups) represent different application tiers, such as web, application, and database tiers. This approach allows for a more flexible and scalable network configuration that aligns with the application architecture, enabling policies to be applied based on the application's needs rather than the network topology.Reference:= Implementing Cisco Application Centric Infrastructure Official Cert Guide

Question 4

Refer to the exhibit.

New e-commerce software is deployed on Cisco ACI fabric. The environment must meet these requirements;

* The overall number of contracts must be reduced by reusing the existing contracts within a VRF when possible

* The e-commerce software must communicate only with software EPGs that are part of the same ANP.

* The e-commerce software must be prevented from communicating with applications in different AN Ps.

Which scope must be selected to meet these requirements?

ATenant

BGlobal

CEndpoint Group

DApplication Profile

Answer : C

The Endpoint Group (EPG) scope is the correct choice to meet the requirements for the e-commerce software in a Cisco ACI fabric. By selecting the EPG scope, contracts can be reused within the same Virtual Routing and Forwarding (VRF) context, reducing the overall number of contracts. Additionally, it ensures that the e-commerce software communicates only with software EPGs that are part of the same Application Network Profile (ANP), while preventing communication with applications in different ANPs.Reference:= ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

Question 5

Which protocol is used to exchange the MAC/IP address information for endpoints between spine switches in different pods in a Cisco Multi-Pod solution?

ABGPVPNv4

BMP-BGPEVPN

CIS-IS

DGRE

Answer : B

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.Reference:= ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

Question 6

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

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

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

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

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

Answer : D

The Forwarding Tag (FTAG) in Cisco ACI is used to load balance multi-destination traffic. FTAG trees facilitate efficient forwarding of multicast traffic within the fabric, ensuring optimal distribution and load balancing across multiple paths.All multi-destination traffic is encapsulated within VXLAN, and FTAG trees play a crucial role in achieving efficient traffic flow345.

Question 7

Refer to the exhibit.

An engineer is configuring a vSwitch policy in the existing Cisco ACI fabric. The requirement is for the Cisco ACI leaf to learn individual MAC addresses from the same physical port. Which vSwitch policy configuration mode must be enabled to meet this requirement?

AMAC pinning

BMAC binding

CLACP passive

DLACP active

Answer : A

For the Cisco ACI leaf to learn individual MAC addresses from the same physical port, ''MAC pinning'' mode must be enabled in the vSwitch policy configuration. This mode allows each ESXi vSwitch port group to pin to a specific uplink or set of uplinks, enabling independent MAC address learning for each pinned uplink, which is essential for distinguishing multiple VMs on an ESXi host by the leaf switch.Reference: Implementing Cisco Application Centric Infrastructure Official Cert Guide

Cisco Implementing Cisco Application Centric Infrastructure - Advanced 300-630 DCACIA Exam Questions