2020 Internet Unit Review 2 - The Sequel!

Which of the following statements about IP addresses is true?

• When data is sent between devices on the Internet, they identify each other with an IP address.

• When a user signs up for an email address they must also sign up for an IP address.

• IP addresses are assigned at the factory.

• The IPV4 IP scheme allows for an unlimited number of devices to connect to the Internet.

In what situations is the Internet Protocol (IP) used?

• It is used any time that two computing devices send data to each other in a computer network.

• It is used when a computing device is connected to other Internet-connected devices using a wired connection, but not when using a wireless connection.

• It is used every time that two computing devices send data to each other over the Internet.

• It is used when two computing devices are transferring data over the Internet on a low bandwidth network connection, but not when transferring over a high bandwidth connection.

Which of these situations describes a computer network?

• A programmer runs an algorithm on their computer that can play chess. The algorithm efficiently searches through a graph of all the possible moves and subsequent moves and picks the move with the highest probability of winning.

• A fashion designer creates a glove that changes colors as your fingers move. The glove embeds flex sensors, a microcomputer, and LEDs. The embedded flex sensors are input sources for the microcomputer, relaying the current angle of a finger bend. The microcomputer then runs a program to determine the color and relays that to the LEDs.

• A video gaming club sets up six powerful computers in a room and connects them with Ethernet cables to a router. The club members play multi-player games together.

• An airport provides power outlets next to the seats in the boarding waiting areas. The outlets are constantly in use by passengers charging their laptops and smartphones.

The Internet Protocol (IP) includes a rule that each message must include a source IP address and a destination IP address.

What are the likely consequences of a computer sending a message that does not follow that IP rule?

1. The computer will be put on a blocklist and not permitted to send future messages over the Internet for a period of time.
2. The message might not travel over the Internet or arrive at its destination at all.
3. The message will still travel over the Internet but the contents of the message will be censored.

• 1 only

• 2 only

• 3 only

• 1 and 2

• 1 and 3

Review this fascinating chart that displays the average bandwidth per Internet user in four island nations in 2016.

Which statement is true based on this chart?

• The average Internet user in the Philippines must wait longer to receive packets over the Internet than the average user in Indonesia.

• The average Internet connection in Japan can transfer more bits per second than the average connection in the Philippines.

• The average Internet user in Australia will have to wait longer to download a large file than the average user in Japan.

• The average Internet connection in Japan connects to more routers than the average connection in Indonesia.

What's the best tangent Milstead has had so far this year?

Which is the funniest teacher? This (probably) won't affect your grade.

• Ms. Salle

• Dan Freeman

• Mr. Milstead

• Mr. Clark

Many people worry about what would happen if either the Internet or the World Wide Web went down (if they suffered a complete outage and were unreachable).

Which of the following is correct?

• If the Internet went down, the World Wide Web would also go down, since the WWW relies on the Internet protocols.

• If either the Internet or the World Wide Web go down, both systems would have to go down together, since they are interdependent.

• If the World Wide Web went down, the Internet would also go down, since the Internet relies on the WWW protocols.

• If either the Internet or the World Wide Web go down, the other system will not necessarily go down as well, as they are fully independent of each other.