Which of the following Internet connectivity technologies enables data to be sent over existing copper telephone lines by sending digital pulses in the high-frequency area of telephone wires?
A) integrated services digital network technology
B) digital subscriber line technology
C) dial-up service technology
D) cable modem technology
E) fiber-to-home technology
Question 2
A ________ is a device that converts digital signals from a computer into analog signals so that telephone lines may be used as a transmission medium to send and receive electronic data.
A) modem
B) LAN card
C) network adapter
D) PCI connector
E) USB port
Biological transistor enables computing within living cells
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