Packets and Routers

Who began working on the design of what we now call the Internet?

• Lynn Root

• Bill Gates

• Bob Kahn and Vint Cerf

• Steve Jobs

What does TCP stand for?

• Transfer Command Process

• Technical Communication Package

• Transmission Control Protocol

• Traffic Control Policy

How does data travel on the Internet?

• In a direct line

• In a continuous stream

• In a fixed path

• In packets

What role do routers play on the Internet?

• Provide Wi-Fi

• Act like traffic managers

• Store data

• Generate electricity

What is meant by the 'cheapest' path in Internet routing?

• Shortest physical distance

• Optimal in terms of time and other factors

• Least cost in terms of money

• Easiest to configure

What does fault tolerance in a network mean?

• The network can operate without any faults

• The network is expensive to maintain

• The network can continue operating even if parts fail

• The network is free from errors

What happens if TCP finds some packets are missing?

• It reports to the ISP

• It shuts down the network

• It requests the missing packets again

• It ignores the missing packets

How is a large image sent over the Internet?

• Broken into many smaller packets

• In multiple emails

• In one large packet

• Via a dedicated server

What analogy is used to describe how packets travel on the Internet?

• Like a letter in the mail

• Like a car choosing different routes

• Like a plane in the sky

• Like a train on tracks

What ensures the scalability of the Internet?

• The limited number of routers

• The use of a single protocol

• The constant monitoring by technicians

• The principles of fault tolerance and redundancy