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86.
A standalone wireless AP solution is being installed into the campus infrastructure. The access points appear to boot correctly, however, wireless clients are not obtaining correct access. You verify that the local switch configuration connected to the access point appears as the following:
interface ethernet 0/1
switchport access vlan 10
switchport mode access
spanning-tree portfast
mls qos trust dscp
What is the most likely issue causing the problem?
  • A.
    QoS trust should not be configured on a port attached to a standalone AP.
  • B.
    QoS trust for switchport mode access should be defined as "cos".
  • C.
    switchport mode should be defined as "trunk" with respective QoS.
  • D.
    switchport access vlan should be defined as "1".
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Answer : [C]
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87.
Wireless has been operating correctly in the campus infrastructure. After the wireless controllers are upgraded from LWAPP to CAPWAP, access points no longer boot and operate normally. What is the most likely issue causing this problem?
  • A.
    VLAN assignments
  • B.
    DHCP option 43
  • C.
    PoE
  • D.
    ACL
  • E.
    QoS
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Answer : [D]
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88.
A network is deployed using best practices of the enterprise campus network model, including users with desktop computers connected via IP phones. Given that all components are QoS capable, where are the two optimal locations for trust boundaries to be configured by the network administrator? (Choose two.)
  • A.
    host
  • B.
    IP phone
  • C.
    access layer switch
  • D.
    distribution layer switch
  • E.
    core layer switch
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Answer : [B, C]
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89.
During voice implementation, which two required items are configured at an access layer switch connected to an IP phone to provide VoIP communication? (Choose two.)
  • A.
    allowed codecs
  • B.
    native VLAN
  • C.
    auxiliary VLAN
  • D.
    Cisco Unified Communications Manager IP address
  • E.
    RSTP
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Answer : [B, C]
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90.
Which two networking infrastructure characteristics are most likely to distinguish video requirements (such as Cisco TelePresence) from voice requirements? (Choose two.)
  • A.
    jitter
  • B.
    delay
  • C.
    PoE
  • D.
    bandwidth
  • E.
    packet loss
  • Answer & Explanation
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Answer : [C, D]
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