Which of the following statements is correct?
A. characteristic of the hub architecture of ARC-net is alternative routing.
B. characteristic of LAN is unlimited expansion
C. characteristic of LAN is low cost access for low bandwidth channels
D. characteristic of the hub architecture of ARC-net is directionalized transmission
E. None of the above
Answer: Option D
A. Agreements on how communication components and DTE
B. Logical communication channels used for transferri
C. Physical communication channels used for transferr
D. None of the above
A. Simplex
B. Four wire circuit
C. Full Duplex
D. Half Duplex
Error detection at the data link level is achieved by
A. Bit Stuffing
B. Cyclic Redundancy Code
C. Hamming Code
D. Equalization
Which of the following is a wrong example of network layer?
A. Internet Protocol (IP) - ARPANET
B. X.25 Packet Level Protocol (PLP)-ISO
C. Source routing and domain naming-USENet
D. X.25 level 2-ISO
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