In a communication system,which among the following convert messages into packets that can travel across the communication channel?
A) connection devices
B) sending and receiving devices
C) storage devices
D) secondary devices
Correct Answer:
Verified
Q11: Microwave communication uses high-frequency _.
A)radio waves
B)infrared
C)satellite communications
D)optic
Q12: This device enables connectivity between two LANS
Q13: Using this type of communications channel,several users
Q14: A wireless access point that provides Internet
Q15: Which physical connection is the fastest?
A)twisted pair
B)coaxial
Q17: A service that uses existing phone lines
Q18: WiMax stands for _.
A)wide-area access for maximum
Q19: The capacity of a communication channel is
Q20: The GPS device in an automobile uses
Q21: _ are countrywide and worldwide networks.
A)Cable systems
B)Wide
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