Error control is needed at the transport layer because of potential errors occurring _____.
A. from transmission line noise
B. in routers
C. from out-of-sequence delivery
D. from packet losses.
Answer: Option B
This Question Belongs to Networking >> Networking Miscellaneous
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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
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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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