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51.
What are two common issues that could result from an STP failure?
  • A.
    Tagged frames being sent into a native VLAN
  • B.
    Broadcast storms
  • C.
    MAC address table filling to capacity
  • D.
    MAC address table corruption
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Answer : [B and D]
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52.
Which STP feature ensures that certain ports in the STP topology never become root ports, and if the port receives a superior BPDU it places it in the root inconsistent state?
  • A.
    BPDU Guard
  • B.
    BPDU Filter
  • C.
    Root Guard
  • D.
    PortFast
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Answer : [C]
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53.
Which switch feature allows multiple physical links to be bonded into a logical link?
  • A.
    STP
  • B.
    EtherChannel
  • C.
    PortFast
  • D.
    Switch virtual interfaces
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Answer : [B]
Explanation :

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54.
What must match on physical switchports to successfully form an EtherChannel bundle? (Choose three.)
  • A.
    Interface speed
  • B.
    Interface mode (access/trunk)
  • C.
    Native VLAN
  • D.
    STP port cost
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Answer : [A][B],[C]
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55.
What combination will successfully form a Cisco proprietary Layer 2 EtherChannel bundle?
  • A.
    Active – Passive
  • B.
    On – Active
  • C.
    Desirable – Auto
  • D.
    Desirable – Passive
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Answer : [C]
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