cisco 300-630 practice test

Implementing Cisco Application Centric Infrastructure - Advanced


Question 1 Topic 5

Topic 5
Which action must be taken to connect two nonsilient servers in active/standby mode to two ACI leaves?

  • A. Implement a virtual PortChannel on ACI leaves
  • B. Enable ARP flooding for the bridge domain if the MAC address of the active interface changes after NIC failover
  • C. Configure ARP flooding for the bridge domain if the MAC address of the active interface stays identical after a NIC failover
  • D. Disable dataplane learning to avoid endpoint flapping
Answer:

C

Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/dcn/whitepapers/cisco-application-centricinfrastructure-design-guide.html

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Question 2 Topic 5

Topic 5
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
Answer:

C

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Question 3 Topic 5

Topic 5
DRAG DROP
An engineer must migrate servers from a legacy data center infrastructure to a Cisco ACI fabric. Drag and drop the steps
from the left into the order that they must be completed on the right to ensure the least amount of downtime.
Select and Place:

Answer:

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Question 4 Topic 5

Topic 5
What are two characteristics of network-centric design in Cisco ACI? (Choose two.)

  • 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
Answer:

B E

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Question 5 Topic 5

Topic 5
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
Answer:

C

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Question 6 Topic 5

Topic 5
Cisco ACI fabric is migrated from network-centric mode to application-centric mode. What is possible in an application-
centric design?

  • 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
Answer:

C

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Question 7 Topic 5

Topic 5
What are two characteristics of Cisco ACI interaction with MSTP? (Choose two.)

  • 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.
Answer:

C D

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Question 8 Topic 5

Topic 5

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

  • A. STP BPDUs that are generated by Switch2 are received by Switch1 and Switch3.
  • B. Cisco ACI fabric drops all STP BPDUs that are generated by the external switches.
  • C. Cisco ACI acts as the STP root for all three external switches.
  • D. STP BPDUs that are generated by Switch1 are received only by Switch3.
Answer:

A

Explanation:
Reference: https://www.linkedin.com/pulse/cisco-aci-network-behaviour-stptcn-how-identify-loopankit-kulshresta

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Question 9 Topic 5

Topic 5
Where are STP BPDUs flooded in Cisco ACI fabric?

  • A. in the bridge domain VLAN
  • B. in the native VLAN ID
  • C. in the access encapsulation VLAN part of different VLAN pools
  • D. in the VNID that is assigned to the FD VLAN
Answer:

A

Explanation:
Reference: https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/ application-centric-
infrastructure/white-paper-c11-737909.html

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Question 10 Topic 5

Topic 5
What are two characteristics of Cisco ACI and Spanning Tree Protocol interaction? (Choose two.)

  • 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.
Answer:

D E

Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/aci_virtual_edge/ configuration/1-
x/b_Virtual_Edge_Config_Guide_1_2_2/ b_Virtual_Edge_Config_Guide_1_2_2_chapter_0101.html

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