4.4 How Does the Internet Work?

What is an IP address?

• A unique identifier assigned to each device on the Internet

• A type of Internet service provider

• A password required to access the Internet

• A software that protects devices from viruses

Which of the following is an example of an IPv4 address?

• 2001:0db8:85a3:0000:0000:8a2e:0370:7334

• 139.130.4.5

• 12345:678:90

• ABCD:EF01:2345:6789:ABCD:EF01:2345:6789

Why was a longer IP address system introduced?

• To increase the speed of the Internet

• To allow for more devices to be connected to the Internet

• To improve the security of Internet communications

• To reduce the cost of Internet access

When accessing the internet, what is required no matter what kind of device you use?

• A) A web browser

• B) An IP address

• C) A search engine

• D) A social media account

What happens to a web page when it is sent from the server to a client computer?

• A) It is sent as a continuous stream of data.

• B) It is sent in large chunks without an address.

• C) It is split into small chunks called packets, each with the IP address of the client.

• D) It is compressed into a single packet with encryption.

If packets do not make it to the client, what might happen?

• A) The client computer will crash.

• B) The entire data set may be sent again or just the packets that were lost.

• C) The server will automatically shut down.

• D) The packets will be lost forever.

Which might be more important for a user streaming a video game?

• A) 100-percent packet accuracy

• B) The color quality of the display

• C) The size of the web page

• D) The number of advertisements

What is the process of splitting data into packets and sending them over the internet known as?

• Data encoding

• Packet switching

• Protocol streaming

• Data fragmentation

What are the rules known as that determine how computers send and receive data?

• Guidelines

• Protocols

• Instructions

• Procedures

How many layers are used in the TCP/IP model according to the text?

• Two

• Three

• Four

• Five