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Cisco 642-874 Exam Practice Questions and Answers


642-874 Practice TestExam Code: 642-874
Exam Name: Designing Cisco Network Service Architectures
One year free update, No help, Full refund!
642-874 Braindumps Total Q&A: 162 Questions and Answers
Last Update: 06-23,2015

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NO.1 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.
Answer: B

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NO.2 Which STP enhancement can be configured on Layer 2 ports between distribution layer
switches?
A. LoopGuard
B. PortFast
C. UplinkFast
D. RootGuard
Answer: A

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NO.3 Which VRF component ensures control plane separation between the different Layer 3 VPNs?
A. FIB
B. routing protocol instance
C. RIB
D. a subset of the router interfaces
Answer: B

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NO.4 Which of these is a recommended practice with trunks?
A. use ISL encapsulation
B. use 802.1q encapsulation
C. set ISL to desirable and auto with encapsulation negotiate to support ILS protocol negotiation
D. use VTP server mode to support dynamic propagation of VLAN information across the network
Answer: B

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NO.5 A customer with a single Cisco Adaptive Security Appliance wants to separate multiple
segments of the e-commerce network to allow for different security policies. What firewall
technology accommodates these design requirements?
A. virtual contexts
B. private VLANs
C. admission control
D. virtual private network
Answer: A

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NO.6 Which two design recommendations are most appropriate when OSPF is the data center core
routing protocol? (Choose two.)
A. Never use passive interfaces.
B. Use NSSA areas from the core down.
C. Use totally stub areas to stop type 3 LSAs.
D. Use the lowest Ethernet interface IP address as the router ID.
E. Manipulate the reference bandwidth.
Answer: B,E

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NO.7 An engineer is designing an address plan. Which IPv6 prefix removes any consideration
regarding the number of hosts per subnet?
A. /32
B. /48
C. /64
D. /96
Answer: C

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NO.8 Which three Layer 2 access designs have all of their uplinks in an active state? (Choose three.)
A. Flex Links
B. loop-free U
C. looped square
D. looped triangle
E. loop-free inverted U
Answer: B,C,E

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Posted 2015/6/25 1:45:09  |  Category: Cisco  |  Tag: 642-874 examCisco