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Networking Multiple Choice Questions and Answers

71. The OSI model consists of ______ layers.
(A)3
(B)5
(C)7
(D)8 ANSWER: C

72. The physical layer is concerned with the transmission of ______ over the physical medium.
(A)programs.
(B)dialogs.
(C)protocols.
(D)bits. ANSWER: D

73. As a data packet moves from the lower to the upper layers, headers are _____
(A)added.
(B)subtracted.
(C)rearranged.
(D)modified.

74. Which layer functions as a liaison between user support layers and network support layers?
(A)Physical.
(B)Network.
(C)Transport.
(D)Session.

75. When data is transmitted from device A to device B, the header from A's layer 5 is read by B's ____________ layer.
(A)physical.
(B)network.
(C)transport.
(D)session.