Unit 9 Networking Fundamentals

What is the Internet Protocol (IP)?

• A set of rules describing what behavior is acceptable on the Internet

• A law that says that the Internet is for everyone

• A protocol that defines the structure of an Internet address and assigns a unique address to every device on the Internet

• An agreement that sets a limit on the number of computers than can be on the Internet at any given time

What is the function of the Domain Name System (DNS)?

• To sell website names to web developers

• To translate domain names into IP addresses

• To make sure that each IP address has only one corresponding domain name

• To assign a unique domain name to every computer

According to the Domain Name System (DNS), which of the following is a subdomain of the domain example.com?

• example.com/home

• example.org

• example.com.org

• about.example.com

What does redundancy mean in the context of Internet routing?

• Multiple paths exist between any two points

• For any two points on the Internet, there exists only one path between them

• Data sent over the Internet is sent to the router with the lowest cost.

• If a single router on a network breaks, the entire network fails.

Which of the following is a benefit of the fault-tolerant nature of Internet routing?

• The ability to use a hierarchical naming system to avoid naming conflicts

• The ability to provide data transmission even when some connections between routers have failed

• The ability to resolve errors in domain name system (DNS) lookups

• The ability to use multiple protocols such as hypertext transfer protocol (HTTP), Internet protocol (IP), and simple mail transfer protocol (SMTP) to transfer data.

Consider the above network diagram:

Each box represents a device connected to the network, each line represents a direct connection between two devices.

Which of the following statements are true about this network:

A - The network is fault tolerant. If one connection fails, any two devices can still communicate.
B - Computers C and E need to first communicate with at least one other device in order to communicate with each other.

1. Correct Answer

   A only

• A Only

• B only

• A and B

• Neither A nor B

Which of the following statements are true about the Internet?

I - The Internet connects devices and networks all over the world
II - The Internet helps people collaborate to solve problems
III - The Internet helps people communicate
IV - There are no negative consequences of the Internet, it is purely positive

• 1. II only

• 1. I and II

• 1. I, II, and III

• 1. I, II, III, and IV

Which of the following refers to a widely agreed upon set of rules that standardize communication between machines?

• Protocol

• Internet

• Network

• Copyright

True or False: The Internet is non-existent in the developing world.

• True

• False

What is the number base of the binary number system?

• 10

• 2

• 1

• 0