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Cisco 300-620 Implementing Cisco Application Centric Infrastructure (DCACI) Exam Practice Test

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Implementing Cisco Application Centric Infrastructure (DCACI) Questions and Answers

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Question 1

Refer to the exhibit. Server A is connected to the Cisco ACI fabric using two teamed interfaces. One interface in a team is configured as active and the other remains in standby mode. When a failover occurs and the standby interface becomes active, it uses its built-in MAC address to send traffic. Which bridge domain configuration must be applied to resolve the issue?

Options:

A.

Configure Hardware proxy.

B.

Set L2 Unknown Unicast to Flood.

C.

Enable ARP flooding.

D.

Activate Limit IP Learning to Subnet.

Question 2

Which statement regarding ACI Multi-Pod and TEP pool is true?

Options:

A.

The IP addresses used in the IPN network can overlap TEP pool of the APIC.

B.

A different TEP pool must be assigned to each Pod.

C.

The Pod1 TEP pool must be split and a portion of the TEP pool allocated to each Pod.

D.

The same TEP pool is used in all Pods.

Question 3

A network engineer must backup the PRODUCTION tenant. The configuration backup should be stored on the APIC using a markup language and contain all secure information. Which export policy must be used to meet these requirement?

A)

B)

C)

D)

Options:

A.

Option A

B.

Option B

C.

Option D

D.

Option D

Question 4

Refer to the exhibit. How are the STP BPDUs forwarded over Cisco ACI fabric?

Options:

A.

Cisco ACI acts as the STP root for all three external switches.

B.

STP BPDUs that are generated by Switch2 are received by Switch1 and Switch3

C.

STP BPDUs that are generated by Switch1 are received only by Switch3.

D.

Cisco ACI fabric drops all STP BPDUs that are generated by the external switches.

Question 5

What must be enabled in the bridge domain to have the endpoint table learn the IP addresses of endpoints?

Options:

A.

L2 unknown unicast: flood

B.

GARP based detection

C.

unicast routing

D.

subnet scope

Question 6

An engineer is extending EPG connectivity to an external network. The external network houses the Layer 3 gateway and other end hosts. Which ACI bridge domain configuration should be used?

Options:

A.

Forwarding: Custom

L2 Unknown Unicast: Hardware Proxy L3 Unknown Multicast Flooding: Flood Multi Destination Flooding: Flood in BD ARP Flooding: Enabled

B.

Forwarding: Custom

L2 Unknown Unicast: Flood

L3 Unknown Multicast Flooding: Flood Multi Destination Flooding: Flood in BD ARP Flooding: Enabled

C.

Forwarding: Custom

L2 Unknown Unicast: Hardware Proxy L3 Unknown Multicast Flooding: Flood Multi Destination Flooding: Flood in BD ARP Flooding: Disabled

D.

Forwarding: Custom

L2 Unknown Unicast: Flood

L3 Unknown Multicast Flooding: Flood Multi Destination Flooding: Flood in BD ARP Flooding: Disabled

Question 7

What are two PBR characteristics of the Cisco ACI Active-Active Across Pods deployment mode in Cisco ACI Multi-Pod design? (Choose two.)

Options:

A.

Traffic is dynamically redirected to the firewall that owns the connection.

B.

Deployment occurs in transparent mode.

C.

The connection state is unsynchronized.

D.

Deployment occurs in go-to mode only.

E.

This mode causes the traffic to flow asymmetrically.

Question 8

As part of a migration, legacy non-ACI switches must be connected to the Cisco ACI fabric. All non-ACI switches run per-VLAN RSTP. After the non-ACI switches are connected to Cisco ACI, the STP convergence caused a microloop and significant CPU spike on all switches. Which configuration on the interfaces of the external switches that face the Cisco ACI fabric resolves the problem?

Options:

A.

BPDU guard

B.

aggressive STP timers

C.

BPDU filtering

D.

STP type link shared

Question 9

What happens to the traffic flow when the Cisco ACI fabric has a stale endpoint entry for the destination

endpoint?

Options:

A.

The leaf switch does not learn the source endpoint through data plane learning.

B.

The leaf switch drops the traffic that is destined to the endpoint.

C.

The leaf switch floods the traffic to the endpoint throughout the fabric.

D.

The leaf switch sends the traffic to the wrong destination leaf.

Question 10

Refer to the exhibit A customer must back up the current Cisco ACl configuration securely to the remote location using encryption and authentication. The backup job must run once per day The customer s security policy mandates that any sensitive information including passwords, must not be exported from the device Which set of steps meets these requirements?

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Question 11

Which two types of interfaces are supported on border leaf switches to connect to an external router? (Choose two.)

Options:

A.

subinterface with VXLAN tagging

B.

subinterface with 802.1Q tagging

C.

FEX host interface

D.

out of band interface

E.

Switch Virtual Interface

Question 12

Where are STP BPDUSs flooded in Cisco ACI fabric?

Options:

A.

in the access encapsulation VLAN part of different VLAN pools

B.

in the bridge domain VLAN

C.

in the native VLAN ID

D.

in the VNID that is assigned to the FD VLAN

Question 13

Refer to the exhibit. A Cisco APIC raises an error when the EPG must accept endpoints from a VMM domain created. Which action clears the fault?

Options:

A.

Expand the VLAN pool for the VMM domain.

B.

Create a bridge domain for the VMM domain.

C.

Associate the EPG with the VMM domain.

D.

Associate the VLAN pool with the VMM domain.

Question 14

Refer to the exhibit. 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?

Options:

A.

precise filter to allow only HTTP traffic

B.

permit-all contract filter

C.

contract with no filter

D.

contract filter to allow ARP and HTTP.

Question 15

Refer to the exhibit. An engineer configured subnets on the external EPG called L3OUT_CORE. The external endpoints in the 10.1.0.0/24 subnet can reach internal endpoints, but the external endpoints in the 172.16.1.0/24 subnet are unreachable. Which set of actions enables the connectivity?

Options:

A.

Delete both external EPG subnets.

Create the 0.0.0.0/1 subnet.

B.

Delete the external EPG subnet 0.0.0.128/1.

Create the 128.0.0.0/1 subnet.

C.

Delete both external EPG subnets.

Create the 0.0.0.0/0 subnet.

D.

Delete the external EPG subnet 0.0.0.0/0.

Create the 0.0.0.0/128 subnet.

Question 16

What two actions should be taken to deploy a new Cisco ACI Multi-Pod setup? (Choose two.)

Options:

A.

Configure MP-BGP on IPN routers that face the Cisco ACI spines.

B.

Connect all spines to the IPN.

C.

Configure anycast RP for the underlying multicast protocol

D.

Configure the TEP pool of the new pod to be routable across the IPN.

E.

Increase interface MTU for all IPN routers to support VXLAN traffic.

Question 17

Refer to the exhibit. The 0.0.0.0/0 is configured as a default static route on L3Out-1. Which action should be taken for the 0.0.0.0/0 prefix to advertise out on L3Out-2 OSPF?

Options:

A.

Enable Export Route Control Subnet.

B.

Enable Shared Security Import Subnet.

C.

Enable Shared Route Control Subnet.

D.

Enable Aggregate Export Subnet.

Question 18

An application team tells the Cisco ACI network administrator that it wants to monitor the statistics of the unicast and BUM traffic that are seen in a certain EPG. Which statement describes the collection statistics?

Options:

A.

All EPGs in the Cisco ACI tenant object must be enabled for statistics to be collected.

B.

Cisco ACI does not capture statistics at the EPG level. Only statistics that pass through ACI contracts can be monitored.

C.

EPG statistics can be collected only for VMM domains. If a physical domain exists, statistics are not collected.

D.

The collection of statistics is enabled on the EPG level by enabling the statistics for unicast and BUM traffic.

Question 19

Which endpoint learning operation is completed on the ingress leaf switch when traffic is received from a Layer 3 Out?

Options:

A.

The source MAC address of the traffic is learned as a local endpoint.

B.

The source MAC address of the traffic is learned as a remote endpoint.

C.

The source IP address of the traffic is learned as a remote endpoint.

D.

The source IP address of the traffic is learned as a local endpoint.

Question 20

An engineer has set the VMM resolution immediacy to pre-provision in a Cisco ACI environment. No Cisco Discovery Protocol neighborship has been formed between the hypervisors and the ACI fabric leaf nodes. How does this affect the download policies to the leaf switches?

Options:

A.

No policies are downloaded because LLDP is the only supported discovery protocol.

B.

Policies are downloaded when the hypervisor host is connected to the VMM VDS.

C.

Policies are downloaded to the ACI leaf switch regardless of Cisco Discovery Protocol neighborship.

D.

No policies are downloaded because there is no discovery protocol neighborship.

Question 21

Which description regarding the initial APIC cluster discovery process is true?

Options:

A.

The APIC uses an internal IP address from a pool to communicate with the nodes.

B.

Every switch is assigned a unique AV by the APIC.

C.

The APIC discovers the IP address of the other APIC controllers by using Cisco Discovery Protocol.

D.

The ACI fabric is discovered starting with the spine switches.

Question 22

Refer to the exhibit A Cisco ACI fabric is using out-of-band management connectivity The APIC must access a routable host with an IP address of 192 168 11 2 Which action accomplishes this goal?

Options:

A.

Change the switch APIC Connectivity Preference to in-band management

B.

Remove the in-band management address from the APIC.

C.

Add a Fabric Access Policy to allow management connections.

D.

Modify the Pod Profile to use the default Management Access Policy

Question 23

Refer to the exhibit. An engineer is configuring a production Multi-Site solution to provide connectivity from EPGs from a specific site to networks reachable through a remote site L3OUT. All required schema and template objects are already defined. Which additional configuration must be implemented in the Multi-Site Orchestrator to support the cross-site connectivity?

Options:

A.

Configure a routable TEP pool for SITE1.

B.

Enable CloudSec for intersite traffic encryption.

C.

Add a new stretched external EPG to the existing L3OUT.

D.

Implement a policy-based redirect using a service graph.

Question 24

Refer to the exhibit. An engineer configures an L3Out but receives the error presented. Which action clears the fault?

Options:

A.

Acknowledge the QoS-related error.

B.

Associate a custom QoS class.

C.

Create a custom QoS policy.

D.

Set the QoS policy to Level 3.

Question 25

An engineer is configuring a VRF for a tenant named Cisco. Drag and drop the child objects on the left onto the correct containers on the right for this configuration.

Options:

Question 26

A Cisco APIC is configured with RADIUS authentication as the default The network administrator must ensure that users can access the APIC GUI with a local account if the RADIUS server is unreachable. Which action must be taken to accomplish this goal?

Options:

A.

Create an additional login domain that references local accounts

B.

Enable the fallback check with the default authentication domain

C.

Associate console authentication with the "RADIUS" realm.

D.

Reference the local realm in the fallback domain

Question 27

Which two protocols are used for fabric discovery in ACI? (Choose two.)

Options:

A.

LLDP

B.

OSPF

C.

CDP

D.

DHCP

E.

ISIS

Question 28

A network engineer configures the Cisco ACI fabric to connect to vCenter with these requirements:

Port groups must be automatically created on the distributed virtual switch.

Port groups must use the VLAN allocation in the range between 20-30.

The deployment must optimize the CAM space on the leaf switches.

Which set of actions meets these criteria?

Options:

A.

Create a dynamic VLAN pool with the VLAN range of 20-30.

Create a VMM domain and associate it with the VLAN pool.

Create the EPG and associate the domain.

Set the deployment immediacy to On Demand.

B.

Create a dynamic VLAN pool with the VLAN range of 20-30.

Create a physical domain and associate it with the VLAN pool.

Create the EPG and associate the domain.

Set the deployment immediacy to On Demand.

C.

Create a static VLAN pool with the VLAN range of 20-30.

Create a physical domain and associate it with the VLAN pool.

Create the EPG and associate the domain.

Set the deployment immediacy to Immediate.

D.

Create a static VLAN pool with the VLAN range of 20-30.

Create a VMM domain and associate it with the VLAN pool.

Create the EPG and associate the domain.

Set the deployment immediacy to Immediate.

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