642-873 Exam

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Exam : Cisco 642-873
Title : Designing Cisco Network Service Architectures Exam


1. You are the Cisco Network Designer in Cisco.com. Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual ring topology?
A. Dynamic Trunking Protocol
B. Resilient Packet Ring
C. Synchronous Digital Hierarchy
D. Coarse Wave Division Multiplexing
Answer: B

2. What two choices can you make when redundancy is required from a branch office to a regional office? (Choose two.)
A. multiple Frame Relay PVCs
B. dual Wan links to the regional office
C. dual Wan links to another branch office
D. single links - one to the regional office and one to another branch office
Answer: BD

3. You are the network consultant from Cisco.com. Please point out which Layer 2 access designs does not support VLAN extensions?
A. FlexLinks
B. loop-free U
C. looped square
D. looped triangle
Answer: B

4. Which typical enterprise campus requirement ensures that the network supports the required applications and that data flows within the required time frames?
A. availability
B. performance
C. functionality
D. manageability
Answer: C

5. Which one is not the feature of the Cisco Unified Wireless Network architecture?
A. network unification
B. remote access
C. mobility services
D. network management
Answer: B