which one of the following is a data link protocol ... a. all of the mentioned b. ethernet c. HDLC d. point to point protocol 2. terms that control flow and errors in full duplex switched ethernet is called ... a. LLC control layer b. MAC control layer c. MAC sub layer d. LLC sub layer 3. which data communication method is used to transmit the data over a serial communication link for both directions ... a. simplex b. bluetooth c. multi-duplex d. full duplex e. bi-duplex f. all of the mentioned g. half duplex h. duo duplex 4. in ... there is no need for defining the boundaries of the frames; the size it self can be used a delimeter a. fixed size framing b. standard size framing c. variable size framing d. constant size framing based on data & network communication!

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A:

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