✩Lesson 1:Welcome to the internet✩

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How do you use the Internet? Think about your typical day. When are you using the Internet? For what purposes? What role does it have in your life?

Answers

You use the internet to communicate with people. I use the internet in the morning, during the day, and at night. Basically, I use it all the time. The purpose is that I use the Internet to text people and talk to them, go on social media, call people, etc. The internet plays a huge role in my life because I use it a lot and rely on it a lot in order to communicate with others.

✩Lesson 2:Building a network✩

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Describe two different paths that a message could take from Person A to Person D.

Answers

2 different paths that a message could take from person A to Person D is going from person A to B to D or going from person A to E to C to D. To make a cost-efficient and wire efficient network is by make sub-networks using the wires that are already there.

✩Lesson 3:The need for addressing✩

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Pick the two statements that are true about the Internet Protocol (IP):

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a.Each device or computer on the Internet is assigned a unique IP address. b. IP is a secret protocol shared between the sender and receiver. c. Each network on the Internet uses its own protocol to address messages. d.In order to communicate two devices on the Internet must have the same IP address. e.IP is the shared way that all devices and computers label their messages with the sender and receiver's addresses.

Describe how the Internet Protocol (IP

Answer

Having the Internet Protocol allows devices to connect and communicate easily because all devices get assigned an IP address that has where something is going and coming from.

✩Lesson 4:Routers and redundancy✩

Pick Two: If the post office delivered mail exactly like the routers deliver messages on the Internet, which of the following statements would be true?

Answer

a.One mailman would be responsible for delivering a letter from sender to receiver. b.The mailman would sometimes take a different path to deliver each letter to your home c.Letters would be written on the outside of the envelope for all to read instead of letters put inside envelopes. d.Your mail could not be delivered if a road your mailman was planning to take were under construction.

What are the benefits of building redundancy into a network? What are the potential issues with building redundancy?

Answer

The benefits of building redundancy into a network is that it makes it more reliable. Some issues is that it can take up space.

✩Lesson 5:Packets✩

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Which of the following is true regarding the way information is transmitted on the Internet?

Answer

a. Information flows on a dedicated direct connection from the sender's device to the receiver's device using binary electrical signals. b.If a single packet is dropped, the entire file must be resent. c. Because of the reliability of the Internet, packets always arrive in the same order they were sent. d.Information does not travel in one piece, but rather as a datastream of packets.

Answer the following:

What is Internet Protocol (IP)?

Answer

Rules for addressing and sending data across the internet by assigning unique numbers to each connected device

What is Transmission control protocol (TCP)?

Answer

Takes inventory of all packets in the datastream to ensure they are successfully sent and received.

What is a Packet

Answer

Chunk of data and its metadata, used to route and reassemble information on the Internet.

What is a datastream

Answer

The way in which information travels on the Internet, not as a single piece but in chunks.

User datagram protocol (UDP)?

Answer

Sends all packets without checking whether they were received or ordered properly

✩Lesson 6: HTTP and DNS✩

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What problem does the DNS solve?
How does the DNS help the world wide web scale so that billions of users can access billions of web pages?

Answer

DNS solves putting domain names into ip addresses. The DNS directs users to webpages.