單項(xiàng)選擇題he requirement for high availability within the Data Center network may cause the designer toconsider which one of the following solutions？（）

A. Construct a hierarchical network design using EtherChannel between a server and two VDCsfrom 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 usingactive/active model that is more predictable in failure conditions


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1.單項(xiàng)選擇題To which switch or switches should you provide redundant links in order to achieve high availability with reliable fast convergence in the enterprise campus？（）

A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link
B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link
C. to two core switches from redundant distribution switches connected with Layer 2 link
D. to two core switches from redundant distribution switches connected with Layer 3 link
E. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO

2.單項(xiàng)選擇題

Refer to the exhibit.

Which recommended practice is applicable？（）

A. If no core layer is deployed， the design will be easier to scale
B. A dedicated campus core layer should be deployed for connecting three or more buildings
C. If no core layer is deployed， the distribution switches should not be fully meshed
D. A dedicated campus core layer is not needed for connecting fewer than five buildings

4.單項(xiàng)選擇題Which of these is a correct description of Stateful Switchover？（）

A. It will only become active after a software failure
B. It will only become active after a hardware failure
C. It requires that Cisco N3F· be enabled in order to work successfully
D. It synchronizes the MAC·， FIB·， and adjacency tables between Active and Standby Route Processors

5.多項(xiàng)選擇題Which two characteristics are true of IVRs？ （）

A. They are known as fabric routing
B. They cannot span multiple switches
C. Their connectivity is supported by Layer 2
D. They enable devices in different VSAN fabrics to communicate
E. They require that multiple switch fabrics be merged before they can function