Internet

What is the Internet?

• The World Wide Web

• A collection of interconnected networks

• A place where a huge amount of information is stored

• A single network controlled by a central computer

What is a URL (uniform Resource locator)?

• A search engine

• A web address

• A web browser

• A website

In a packet switching network:

• Each packet contains the entire message being sent

• All packets travel via the same route from sender to recipient

• Any type of data (e.g. text, sound, images, video) can be sent

• The sender decides how many packets are to be used

In a packet switching network, if the connection between two nodes on the route between sender and destination is broken:

• the entire message must be resent

• the packet takes an alternative route to the destination

• the sender is notified that transmission has failed

• he packet is delayed until the connection is restored

A domain name is:

• a website address

• a company name

• a country name

• part of a website address

Which of these is a characteristic of a LAN? (3-6)

• It covers a wide geographical area
• Users can share files and peripherals
• Computers are connected together using a leased line or a satellite
• Data can only be transmitted at a very slow rate

A unique identifying number given to every computer each time it is connected to the internet:

• Wi-Fi

• Internet Protocol

• IP Address

• Software

• Transmission Control Protocol

A device that connects multiple devices to the internet through the same physical internet connection:

• Bit

• Router

• Wi-Fi

• Hardware

• Software

It is responsible for the formatting and addressing of the data packets being sent over the internet:

• Hardware

• Wi-Fi

• Router

• Internet Protocol

• Transmission Control Protocol

It is responsible for dividing data into packets at one end of a transmission and reassembling those packets at the other end:

• IP Address

• Transmission Control Protocol

• Internet Protocol

• Router

• Software