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  1. Which of the following provide inter-switch VLAN communication? 1. ISL 2. VTP 3. 802.1Q 4. 802.3Z

    2. A.

     2 only
    B.

     1 and 3
    C.

     2 and 4
    D.

     2, 3 and 4

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    Workspace

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    Answer : Option B

    Explanation :

    ISL is a Cisco-proprietary frame-tagging method. IEEE 802.1Q is the nonproprietary version of frame tagging.

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