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  1. Junior Member
    Join Date
    Jun 2007
    Location
    Atl Ga
    Posts
    4

    Certifications
    Comptia A+
    #1

    Default Question about NICs

    I have seen and read some conflicting information on what layer of the OSI model that NICs reside. Some of my training material says Layer 2 and some says Layer 1. I tend to think its layer 1. I just want the correct information for the test.
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  2. Senior Member
    Join Date
    Oct 2005
    Posts
    1,030

    Certifications
    CCNP (R&S/Voice), CCDP, CCIP, VCP, NCDA, MCSE, CCNA Security
    #2
    NICs operate at both Layer 1 and 2. They control the layer 2 protocol and the layer 1 physical transmission.
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