Which of the following statement is correct?
A. Satellite transponders contain a receiver and transmitter designed to relay microwave transmissions from one point on earth to another.
B. Satellite transponders contain a device that echos the radiation without change from one point on earth to another.
C. Satellite transponder contains devices that transform the message sent from one location on earth to a different code for transmission to another location.
D. Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations
E. None of the above
Answer: Option A
This Question Belongs to Networking >> Networking Miscellaneous
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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