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  5. Implementing Cisco Application Centric Infrastructure - Advanced (600-660 DCACIA) Questions and Answers

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Questions # 11:

A leaf receives unicast traffic that is destined to an unknown source, and spine proxy is enabled in the corresponding bridge domain. Drag and drop the Cisco ACI forwarding operations from the left into the order the operation occurs on the right.

Question # 11

Expert Solution
Questions # 12:

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?

Options:
A.

ECMP

B.

TCP optimization

C.

disabled fragmentation

D.

jumbo frames

Expert Solution
Questions # 13:

What are two characteristics of Cisco ACI and Spanning Tree Protocol interaction? (Choose two.)

Options:
A.

When a TCN BPDU is received in a VLAN, Cisco ACI flushes the endpoints for the associated encapsulation.

B.

STP BPDUs are dropped due to MCP.

C.

MST BPDUs are flooded correctly in Cisco ACI fabric without additional configuration.

D.

BPDU filter and BPDU guard can be configured on Cisco ACI leaf edge ports.

E.

Cisco ACI must be configured as the STP root for all VLANs.

Expert Solution
Questions # 14:

Cisco ACI fabric is migrated from network-centric mode to application-centric mode. What is possible in an application-centric design?

Options:
A.

remapping of VLAN pools

B.

migration of bare metal servers to virtual machines

C.

creation of additional EPGs under one bridge domain

D.

Cisco ACI VMM integration with hypervisors

Expert Solution
Questions # 15:

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

Options:
A.

There is open communication between EPGs

B.

EPGs are used for microsegmentation

C.

EPGs are different security zones

D.

Applications define the network requirements

E.

A bridge domain has one subnet and one EPG

Expert Solution
Questions # 16:

What are two characteristics of Cisco ACI interaction with MSTP? (Choose two.)

Options:
A.

A Cisco ACI leaf flushes all local endpoints in the received EPG when an MSTP TCN frame is received.

B.

A static path binding is required for native VLAN to carry the MST BPDUs in existing EPGs.

C.

Mis-cabling protocol is used to snoop the MSTP TCN packets.

D.

A dedicated EPG must be created for the native VLAN ID with static bindings toward the MSTP-enabled switches.

E.

The PVST simulation must be configured on external network switches to support MSTP.

Expert Solution
Questions # 17:

Refer to the exhibit.

Question # 17

An engineer wants to avoid connectivity problems for the endpoint EP1 when it reaches an external L3Out network through the gateway 10.2.2.254/24. Which two configurations must be implemented in BD-BD2? (Choose two.)

Options:
A.

Disable unicast routing

B.

Enable IP data plane learning for the VRF

C.

Disable ARP flooding

D.

Enable ARP flooding

E.

Enable unicast routing

Expert Solution
Questions # 18:

Refer to the exhibit.

Question # 18

A customer experiences resource overconsumption on one of its border leaf switches. Which action should be taken to reduce the consumption on this switch?

Options:
A.

Disable VRF Policy Control Enforcement

B.

Disable IP Data Plane Learning

C.

Migrate L3Outs to another switch

D.

Disable Remote EP Learning

Expert Solution
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