Cisco Cisco Specialist 600-660 Questions & Answers

• Question 1:

  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

  Correct Answer: BE

• Question 2:

  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

  Correct Answer: C

• Question 3:

  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

  Correct Answer: C

• Question 4:

  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.

  Correct Answer: CD

• Question 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.

  Correct Answer: A

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

• Question 6:

  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.

  Correct Answer: DE

  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

• Question 7:

  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

  Correct Answer: A

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

• Question 8:

  What is a characteristic of a stretched bridge domain solution between Cisco ACI sites with Layer 2 flood disabled?

  A. The application profile that is associated to the bridge domain have local significance in each site.

  B. The tenant and VRF that associated to the bridge domain have local significance in each site.

  C. Headend replication is used for BUM traffic between sites.

  D. IP mobility is ensured between sites for disaster recovery.

  Correct Answer: B

• Question 9:

  

  Refer to the exhibit. Which feature is available across sites if EPGs are stretched?

  A. active-active high-availability firewall clustering

  B. Layer 3 routing between sites

  C. Layer 2 flooding across sites

  D. live virtual machine migration

  Correct Answer: B

  Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/aci_multi-site/sw/1x/fundamentals/b_Cisco_ACI_Multi-Site_Fundamentals/b_ACI_Multi-Zone_Fundamentals_chapter_01.pdf (6)

• Question 10:

  

  Refer to the exhibit. A customer implements Cisco ACI Multi-Site with default MTU settings between two sites. Which configuration should be applied on the interface Eth1/10 on the ISN-1 device?

  A.

  B.

  C.

  D.

  Correct Answer: A