Understanding Internet Communication

The video tutorial by Tess Twinlock, a software engineer at Google, explains how the Internet functions as a physical system to move information. It compares the Internet to the postal service, highlighting the use of binary code to send data. The tutorial covers methods of transmitting binary information through electricity, light, and radio waves, discussing concepts like bandwidth, latency, and the use of fiber optic cables for long-distance communication. It also addresses wireless communication and its reliance on wired infrastructure, emphasizing the Internet's complexity and fragility.

What is the Internet compared to in the video?

• A magic system

• The postal service

• A telephone network

• A television broadcast

What is a bit described as in the video?

• A type of signal

• A pair of opposites

• A unit of time

• A single number

How do humans send a single bit of information using light?

• By changing the light's intensity

• By turning a light on for 1 and off for 0

• By using different colors of light

• By flashing the light rapidly

What is the term for the maximum transmission capacity of a device?

• Signal strength

• Latency

• Bandwidth

• Bit rate

What is the main advantage of fiber optic cables over Ethernet wires?

• They are more flexible

• They have less signal loss over long distances

• They are easier to install

• They are cheaper

What happened in 2008 that affected the Internet in the Middle East and India?

• A power outage

• A satellite failure

• A virus attack

• A cable cut near Alexandria, Egypt

How do wireless machines send bits from one place to another?

• By using electrical pulses

• By using radio signals

• By using sound waves

• By using light signals

Why can't a radio signal travel very far?

• It is blocked by buildings

• It becomes garbled over long distances

• It requires a lot of power

• It gets absorbed by the atmosphere

What does wireless communication still rely on?

• Satellite networks

• Wired internet

• Cellular towers

• Bluetooth technology

What might future technologies use to send data?

• Lasers and radio waves from drones

• Copper wires

• Fiber optic cables

• Sound waves