A service that uses existing phone lines to provide high-speed connections is called _______.
A) WWAN
B) 3G/4G
C) Voiceband
D) DSL
Correct Answer:
Verified
Q3: Using this type of communications channel, several
Q4: Which physical connection is the fastest?
A) Twisted
Q6: _ is the process of breaking down
Q6: In a computer network, this node that
Q7: Cellular services use _ to provide wireless
Q8: In a communication system, which among the
Q9: Which among the following is considered a
Q10: The _ is the central node that
Q11: Microwave communication uses high-frequency _.
A)radio waves
B)infrared
C)satellite communications
D)optic
Q19: The capacity of a communication channel is
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