Networks

Question 1

What is a client?

Answer 1

service requesters, software that communicates and connects to a server

Question 2

What is a server?

Answer 2

providers of a resource or service; can run multiple things and share resources with clients
serves data

Question 3

Which HTTP method does a browser issue to a web server when you visit a URL?

Answer 3

GET request

Question 4

What three things are on the start-line of an HTTP response message?

Answer 4

1. Protocol version, usually HTTP/1.1
2. Status code indicating success or failure of the request (200, 404, 302 for example)
3. A status text; brief purely informational textual description of the status code to help a human understand the HTTP message

(Typical status line looks like:
HTTP/1.1 404 Not Found.)

Question 5

What are HTTP headers?

Answer 5

key-value pairs that allow us to store extra info about the request
they allow the client and the server to pass additional information with an HTTP request or response

Question 6

Where would you go if you wanted to learn more about a specific HTTP Header?

Answer 6

IANA Registry (mdn)

Question 7

Is a body required for a valid HTTP request or response message?

Answer 7

not required

post, patch, put usually will have one but aren’t required