Notes (Video 1)

Packet: small amount of data sent over. Each pakect also includes the source and destination of information.
Computer network: a group of interconnected computing devices capable of sending and receiving data.
Packet switching: A message is broken up into small packets and sent in any order. Then they are reassembled by the recipient’s device.
Routing: is the process of finding a path from sender to receiver.
Bandwidth is measured in bits ber second.

Notes (video 2)

Open system Interconnect: The layers you have to go through to communicate 7 groups of protocols.
Transmission control protocol: Establishes a common standard for how to send messages between devices on the internet.
Each NIC has a unique adress associated with it called a media access control adress. It is used for local hops.
The most common netwrok access protocol is ethernet.
Routers are special purpose computer with a MAC adress.
http: How to ask and recieve data from web servers.
https: like http, but with security. Usually uses TCP port 443.

Q2. Which of the following is a primary reason for the use of open protocols on the Internet?

My answer: Open protocols allow devices to specify how data packets are to be routed on the Internet in advance.
Correct Answer: Open protocols provide a way to standardize data transmission between different devices.

Q3. Which of the following best describes the relationship between the World Wide Web and the Internet?

My answer: The World Wide Web is a protocol that is accessed using a data stream called the Internet.
Correct Answer: The World Wide Web is a system of linked pages, programs, and files that is accessed via a network called the Internet.