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300-630 Implementing Cisco Application Centric Infrastructure - Advanced (DCACIA)

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Cisco · 300-630

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Question 1

Single choice

The engineer notices frequent MAC and IP address moves between different leaf switch ports.

Which action prevents this problem from occurring?

A
Disable enforce subnet check.
B
Disable IP bridge domain enforcement.
C
Enable endpoint loop protection.
D
Enable rogue endpoint control.

Reveal answer details Close answer details

Correct answerC

Question 2

Single choice

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?

A
MAC pinning
B
MAC binding
C
LACP passive
D
LACP active

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Correct answerA

Question 3

Single choice

Refer to the exhibit.

Which combination of flags in the Cisco ACI contract allows a client in WebClient EPG to establish an HTTP connection toward a server in WebServer EPG?

A
Apply Both Direction ENABLED and Reverse Port Filter ENABLED
B
Apply Both Direction DISABLED and Reverse Port Filter DISABLED
C
Apply Both Direction DISABLED and Reverse Port Filter ENABLED
D
Apply Both Direction ENABLED and Reverse Port Filter DISABLED

Reveal answer details Close answer details

Correct answerA

Question 4

Multiple choice

Refer to the exhibit. Between Cisco UCS Fls and Cisco ACI leaf switches, CDP is disabled, the LLDP is enabled, and LACP is in Active mode.

Which two discovery protocols and load-balancing mechanism combinations can be implemented for the DVS? (Choose two.)

A
CDP enabled, LLDP disabled, and LACP Active
B
CDP disabled, LLDP enabled, and MAC Pinning
C
CDP enabled, LLDP disabled, and MAC Pinning
D
CDP enabled, LLDP enabled, and LACP Active
E
CDP enabled, LLDP disabled, and LACP Passive
F
CDP disabled, LLDP enabled, and LACP Passive

Reveal answer details Close answer details

Correct answersB, C

Question 5

Single choice

An engineer troubleshoots a Cisco ACI fabric and receives this output.

What does tunnel 6 use?

A
default VRF
B
GRE protocol
C
jumbo frames
D
public IP address

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Correct answerB

Question 6

Single choice

Exhibit.

Refer to the exhibit. An engineer must implement a solution to ensure that ingress and egress traffic flows are symmetric for all stretched bridge domains in the customer multisite architecture.

Which configuration accomplishes this goal?

A
Configure host route advertisement on the bridge domains.
B
Enable anycast services to the firewalls in both fabrics.
C
Implement a policy-based redirect using a service graph.
D
Add a new stretched external EPG to the existing L3outs.

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Correct answerA

Question 7

Single choice

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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Correct answerA

Explanation

References:
https://www.cisco.com/c/en/us/support/docs/lan-switching/vlan/212682-virtual-extensible-lan-and-ethernet-virt.html

Question 8

Single choice

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

Reveal answer details Close answer details

Correct answerD

Question 9

Multiple choice

Refer to the exhibit.

Which two configurations enable inter-VRF communication? (Choose two.)

A
Set the subnet scope to Shared Between VRFs
B
Enable Advertise Externally under the subnet scope
C
Change the contract scope to Tenant
D
Change the subject scope to VRF
E
Export the contract and import as a contract interface

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Correct answersA, C

Question 10

Single choice

The servers are dual-homed to Cisco ACI Leaf1001 and Leaf1002 and must be connected in active-active mode. The server NICs do not support LACP. These settings have already been configured in Cisco ACI:

Interface Policy Group type: Leaf Access Port, named active-active-noLACP

Three port selectors: port-1, port-2, and port-3

An AEP called active-active-noLACP has three associated EPGs: EPG-A, EPG-B, and EPG-C

Which action must be taken to migrate the server ports to a different leaf switch in the event of a catastrophic failure?

A
Enable IP Data Plane Learning.
B
Configure failover VLANs in the VLAN pool.
C
Enable Port Tracking under System Settings.
D
Configure the AEP on a physical domain.

Reveal answer details Close answer details

Correct answerD

Question 11

Single choice

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?

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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Correct answerB

Question 12

Single choice

How does Cisco ACI manage the STP BPDUs between two pods?

A
Cisco ACI spines perform ingress replication for STP BPDUs
B
Cisco ACI spines suppress STP BPDUs to be forwarded to other pods
C
BPDUs are forwarded over IPN using the bridge domain GIPo multicast address
D
Special multicast group 239.255.255.255 is used to forward STP BPDUs

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Correct answerC

Question 13

Single choice

Refer to the exhibit.

The external subnet and internal EPG1 must communicate with each other, and the L30ut traffic must leak Into the VRF named "VF1".

Which configuration set accomplishes these goals?

A
External Subnets for External EPG Import Route Control Subnet Shared Route Control Subnet
B
External Subnets for External EPG Shared Route Control Subnet Shared Security Import Subnet
C
Export Route Control Subnet Shared Security Import Subnet Aggregate Shared Routes
D
Export Route Control Subnet Import Route Control Subnet Aggregate Shared Routes

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Correct answerB

Question 14

Single choice

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

A
One-to-one mapping between EPGs and bridge domains Is enforced.
B
A bridge domain has only one subnet.
C
EPGs represent different application tiers.
D
It simplifies gradual migration from a traditional network.

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Correct answerC

Question 15

Single choice

Refer to the exhibit.

Which type of design approach is shown?

A
traditional VLAN/subnet model
B
edge-core-edge model
C
application-centric
D
network-centric

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Correct answerC

Question 16

Single choice

Refer to the exhibit.

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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Correct answerB

Question 17

Single choice

Refer to the exhibit.

In a Cisco ACI Multi-Site deployment, traffic fails to pass between Site-A and Site-B, and an engineer troubleshoots the link between ISN-01 and Node-201.

Which set of actions establishes connectivity?

A
Configure the MTU on the link to be at least 1000 bytes larger than the MTU of the ACI fabrics.
Configure the link as a routed subinteriace by using VLAN-4.
B
Configure the MTU on the link to be at least 100 bytes larger than the MTU of the ACI fabrics.
Configure the link as an access interface by using VLAN-4.
C
Configure the MTU on the link to be at least 100 bytes larger than the MTU of the ACI fabrics.
Configure the link as a routed subinterface by using VLAN-4.
D
Configure the MTU on the link to be at least 1000 bytes larger than the MTU of the ACI fabrics.
Configure the link as an access interface by using VLAN-4.

Reveal answer details Close answer details

Correct answerC

Question 18

Single choice

What is a design implication for Cisco ACI using an application-centric approach?

A
Multiple VLANs and/or multiple EPGs are under one bridge domain
B
VLAN numbers are in the names of the bridge domain and EPG objects
C
One EPG is mapped to multiple bridge domains
D
One VLAN equals one EPG equals one bridge domain

Reveal answer details Close answer details

Correct answerA

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Implementing Cisco Application Centric Infrastructure - Advanced (DCACIA)

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