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Q71. Which option describes the purpose of the auto-cost reference bandwidth 10000 command under the OSPF process? 

A. Recognize redundant 10 Megabit links. 

B. Differentiate cost on a 10 Gigabit Ethernet trunk link. 

C. Change the default bandwidth for a 100 Megabit link. 

D. Adjust the link bandwidth for routing protocols. 

Answer: B 

Q72. Which route summarization most efficiently reduces perceived network complexity that is composed of subnetworks ranging from 172.16.20.0/24 to 172.16.36.0/24? 

A. 172.16.8.0/21 

B. 172.16.8.0/19 

C. 172.16.20.0/20 

D. 172.16.0.0/18 

E. 172.16.20.0/19 

Answer: D 

Q73. Which four options are network virtualization technologies that are employed in the data center? (Choose four.) 

A. VLAN 

B. VSAN 

C. VRF 

D. VRP 

E. VLC 

F. VPC 

Answer: A,B,C,F 

Q74. Which statement about Fibre Channel communications is correct? 

A. N_Port to N_Port connections use logical node connection points. 

B. Flow control is only provided by QoS. 

C. It must be implemented in an arbitrated loop. 

D. Communication methods are similar to those of an Ethernet bus. 

Answer: A 

Q75. Which option provides software modularity in Cisco NX-OS software in the data center design? 

A. The ip routing command enables all of the features in the Cisco NX-OS. 

B. All of the features are enabled by default in the Cisco NX-OS. 

C. Individual features must be manually enabled to start the process. 

D. The Cisco NX-OS has a management VRF that is enabled by default. 

Answer: C 

Q76. What two sensor types exist in an IDS/IPS solution? (Choose two.) 

A. host 

B. anomaly based 

C. policy based 

D. network based 

E. signature 

Answer: A,D 

Q77. What is the purpose of an OTV edge device? 

A. connect to other data centers 

B. connect to the access layer 

C. connect to the end users 

D. connect to mobile devices 

Answer: A 

Q78. CoS is applied for Layer 2 markings in an Ethernet environment. Which protocol must be configured on the Layer 2 switch port for CoS to work? 

A. MPLS 

B. IEEE 802.1W 

C. IEEE 802.1Q 

D. IEEE 802.1S 

Answer: C 

Q79. Which option is the Cisco preferred, most versatile, and highest-performance way to deploy IPv6 in existing IPv4 environments? 

A. dual stack 

B. hybrid 

C. service block 

D. dual service 

Answer: A 

Q80. The requirement for high availability within the Data Center network may cause the designer to consider which one of the following solutions? 

A. Construct a hierarchical network design using EtherChannel between a server and two VDCs from the same physical switch 

B. Utilize Cisco NSF with SSO to provide intrachassis SSO at Layers 2 to 4 

C. Define the Data Center as an OSPF NSSA area, advertising a default route into the DC and summarizing the routes out of the NSSA to the Campus Core 

D. Implement network services for the Data Center as a separate services layer using an active/active model that is more predictable in failure conditions 

Answer: B