The Internet: Packets, Routing and Reliability

Which best explains what happens when a new device is connected to the Internet?

• A device driver is assigned to the device.

• An Internet Protocol (IP) address is assigned to the device.

• A packet number is assigned to the device.

• A Web site is assigned to the device.

Which of these best describes fault-tolerance on the Internet?

• The ability to stop cyberattacks

• The ability to transmit data even when some connections have failed

• The ability for DNS servers to retrieve the correct IP addresses of websites

• The ability for the Internet to handle billions of unique users

Which of these best describes the scalability of the Internet?

• The ability to stop cyberattacks

• The ability to transmit data even when some connections have failed

• The ability for DNS servers to retrieve the correct IP addresses of websites

• The ability for the Internet to handle billions of unique users

Which of these best describes the redundancy of the Internet?

• There are many different paths for information to travel from point A to point B.

• Information on the Internet is broken up into packets.

• A router directs a packet by reading its destination IP address.

• The Internet can handle billions of unique users at once.

Which of the following is true about how packets are sent over the Internet?

• Packets are received in the same order they are sent.

• When data is broken down into packets, they all travel the same route through the Internet to their destination.

• Packets may travel different routes to the same destination, and are frequently dropped along the way.

• If TCP does not receive all packets for a particular communication, then every single packet must be re-sent.

Which of the following is an advantage that copper cables have over fiber optic cables?

• They are faster

• They are cheaper

• They allow you to send multiple bits at the same time

• They are better over long distances

Which of the following is an advantage of fiber optic cable compared to copper wire?

• It is faster

• It is cheaper

• It is easier to work with

• It requires no physical connection

IPv6 allows for close to _____ IP addresses.

• 30 undecillion

• 4 billion

• 30 quadrillion

• 4 nonillion

The process of sending data between two computers on the Internet.

• Messaging

• Networking

• Routing

• Addressing

In routing, messages are forwarded to the router with the lowest cost. What is it meant by cost?

• Least amount of money.

• How close the IP address is.

• Trustworthiness of router.

• How fast the connection is.