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71.
Which of the following is not an expected quality of a data center network?
  • A.
    Availability
  • B.
    Scalability
  • C.
    Flexibility
  • D.
    User authentication
  • E.
    Manageability
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Answer : [D]
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72.
Which of the following represent the main distinctions between data center and campus networks? (Choose all that apply.)
  • A.
    Campus networks follow three-tier designs with core, aggregation, and access layers.
  • B.
    Majority of traffic direction (east-west versus north-south).
  • C.
    Number of connections on a single host
  • D.
    Data center networks generally are considered a more secure environment
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Answer : [B, C and D]
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73.
Which of the following does not represent a function of the aggregation layer on a three-tier data center network design?
  • A.
    Default gateway for the servers
  • B.
    Supports east-west traffic between servers connected to different access switches
  • C.
    Routing protocol peering with external networks
  • D.
    STP root
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Answer : [C]
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74.
Which of the following is correct regarding virtual device contexts?
  • A.
    You cannot configure two VRF instances with the same name in two different VDCs.
  • B.
    With VDCs, a switch can deploy more than 4094 VLANs.
  • C.
    You can control the number of VLANs, VRF instances, and MAC addresses each VDC can have.
  • D.
    It is possible to allow traffic between two VDCs through the switch backplane.
  • E.
    VDCs are a scalable solution for multitenant data centers.
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Answer : [B]
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75.
Which of the following is incorrect regarding virtual PortChannels?
  • A.
    They allow two switches to behave like a single device.
  • B.
    Although it is not a good practice, the peer-keepalive probes can traverse the peer trunk.
  • C.
    You can form a peer trunk with only one physical connection.
  • D.
    Primary and secondary roles must be established between the two switches.
  • E.
    Using vPC eliminates the need for STP.
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Answer : [E]
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