Cisco 300-630 DCACIA Exam Questions Instant Access

Question 1

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

Question 2

A company must connect three Cisco ACI data centers by using Cisco ACI Multi-Site. An engineer must configure the Inter-Site Network (ISN) between the existing sites. Which two configuration steps must be taken to implement the ISN? (Choose two.)

AConfigure encapsulation VLAN-4 between the routers and spine nodes.

BConfigure OSPF on subinterfaces on routers that are directly connected with spine nodes

CConfigure ISN site extension on Cisco routers in the network

DConfigure OSPF on all ISN routers.

EConfigure BIDIR-PIM on all ISN routers.

Answer : B, E

For the ISN implementation between Cisco ACI data centers using Multi-Site, OSPF must be configured on subinterfaces for dynamic routing, and BIDIR-PIM must be set up on all ISN routers for efficient bidirectional multicast traffic routing.Reference:= (Implementing Cisco Application Centric Infrastructure Official Cert Guide)

Question 3

Refer to the exhibit.

Which configuration set must be applied to filter 1 to enable SSH communication between Web_EPG to App_EPG?

AApply Both Directions: Disabled Reverse Filter Ports: Enabled

BApply Both Directions: Enabled Reverse Filter Ports: Enabled

CApply Both Directions: Disabled Reverse Filter Ports: Disabled

DApply Both Directions: Enabled Reverse Filter Ports: Disabled

Answer : D

To enable SSH communication between Web_EPG (Web Endpoint Group) and App_EPG (Application Endpoint Group), it's necessary to apply a configuration that allows bidirectional communication while not restricting ports based on their directionality. By enabling ''Apply Both Directions'' and disabling ''Reverse Filter Ports,'' this ensures that the filter allows SSH packets to flow from Web_EPG to App_EPG and vice versa without any restrictions based on the port's direction, which is essential for establishing an SSH session.Reference:= ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

Question 4

An engineer configures a Cisco ACI Multi-Pod for disaster recovery. Which action should be taken for the new nodes to be discoverable by the existing Cisco APICs?

AEnable subinterfaces with dot1q tagging on all links between the IPN routers.

BConfigure IGMPv3 on the interfaces of IPN routers that face the Cisco ACI spine.

CEnable DHCP relay on all links that are connected to Cisco ACI spines on IPN devices.

DConfigure BGP as the underlay protocol in IPN.

Answer : C

For new nodes in a Cisco ACI Multi-Pod environment to be discoverable by existing APICs, DHCP relay needs to be enabled on the IPN devices' links connected to the ACI spines. This allows the new nodes to obtain an IP address and be recognized by the APICs for integration into the fabric.

Question 5

Refer to the exhibits.

Which subject must be configured for the All_noSSH contract to allow all IP traffic except SSH between the two EPGs?

AOption A

BOption B

COption C

DOption D

Answer : D

In Cisco ACI, contracts are used to define the policies that govern communication between End Point Groups (EPGs). A contract specifies which types of traffic are permitted or denied between EPGs. To allow all IP traffic except SSH, you would configure the contract to permit all IP traffic and then deny SSH specifically. This is typically done by defining filters within the contract that match on the SSH protocol and setting the action to deny.

Implementing Cisco Application Centric Infrastructure - Advanced (DCACIA) course materials and official certification guide can provide more detailed information on this topic12.

Cisco's official documentation and training materials are also a good resource for understanding the configuration and management of contracts in ACI

Question 6

How is multicast traffic managed in a Cisco ACI fabric?

AFTag trees are rooted at the spine nodes. Cisco APIC determines the roots.

BFTag trees are rooted at the leaf nodes. Cisco APIC determines the roots.

CFTag trees are rooted at the leaf nodes. The roots must be configured manually.

DFTag trees are rooted at the spine nodes. The roots must be configured manually.

Answer : A

In a Cisco ACI fabric, multicast traffic is managed using FTag trees that are rooted at the spine nodes. The Cisco APIC automatically determines the roots of these trees.This method optimizes the distribution of multicast traffic across the fabric by leveraging the spine nodes as centralized points for multicast routing and replication456.

Question 7

Refer to the exhibit.

An engineer must have communication between EPG1 in VRF1 and External EPG in VRF2. Which three actions should be taken for the defined subnets in the L3Out External EPG to accomplish this goal? (Choose three.)

AEnable Shared Route Control Subnet

BEnable External Subnets for External EPG

CEnable Export Route Control Subnet

DEnable Shared Security Import Subnet

EEnable Aggregate Shared Routes

FEnable Import Route Control Subnet

Answer : A, B, F

To facilitate communication between EPG1 in VRF1 and External EPG in VRF2, the following actions are necessary:

Enable Shared Route Control Subnet: This allows subnets to be shared across different VRFs, which is essential for inter-VRF communication.

Enable External Subnets for External EPG: Activating this makes the subnets within the External EPG routable to external networks.

Enable Import Route Control Subnet: This enables the importation of routes from L3Out into the VRF, permitting connectivity between different VRFs.

These steps ensure that routing and security policies are correctly implemented to permit traffic flow between EPG1 and External EPG across distinct VRFs.

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