1. It was the service used before when a computer wanted to talk to another computer that was outside of the local network,

• POTS

• Modem

• ISDN

• PSTN

This signals will have a continuously variable energy quantity, such as voltage

• Digital Signals

• Analog Signals

• Radio Waves

• Electric Signals

It is the act of modifying or having a controlling influence over the carrier signal

• Demodulation

• Modulation

• Encryption

• Decryption

It is the process  of decoding the analog signal into digital data.

• Modulataion

• Demodulation

• Decryption

• Encryption

Computers can only understand the analog signal that's why we have the modem to modulate the signal from ISP and convert into a language that the computers can understand

• True

• False

It is the amount of data you can send through the cable including overhead such as packet headers.

• Data rate

• Bandwidth

• Throughput

• Overhead

It is the maximum speed limit that a certain device can achieve.

• Speed

• Bandwidth

• Mbps

• download Speed

It is the throughput minus the overhead.

• Data rate

• packet

• header

• trailer

It is the process of receiving  data from a faraway device to “our” device

• bandwidth

• downstream

• upstream

• speed

It is process of sending of data from our device to another device

• downstream

• Upstream

• speed

• bandwidth