CSIT178 Network & Mobile Device

Question 1

telegraphy

Answer 1

used start and stop signals of dots and dashes transmitted over copper wires

Question 2

network effect

Answer 2

is a phenomenon in which a technology becomes more valuable as the number of users or units increases.

Question 3

modem

Answer 3

modulator/demodulator

convert digital data into an analog signal for transport over the wire.

Question 4

circuit switching

Answer 4

a physical connection was made between two phones using a series of telephony switches, creating an electric circuit.

Question 5

packet switching

Answer 5

the voice signal is first digitized and then chopped up into a series of packets.

Question 6

TCP/IP Protocol

Answer 6

Transmission Control Protocol/Internet Protocol

Question 7

ISDN

Answer 7

Integrated Services for Digital Network, a set of communication standards that came in the late 1980s.
a circuit-based telephone system that allowed access to packet-switched data networks.