W3L1 - HTTP

Question 1

HTTP

Answer 1

Hyper Text Transfer Protocol

Question 2

What kind of protocol is HTTP?

Answer 2

Client-server
Used by clients to retrieve or invoke actions on resources
Text Based
Client sends request, server supplies response

Question 3

HTTP Request Format?

Answer 3

Header (printable ascii with specific end of line sequence
- Request line - Method / protocol/ version -
GET/HTTP/1.1
- Fields describing request and request
Empty line
Optional body (binary data)

Question 4

HTTP Response format?

Answer 4

Header (printable ascii with specific end of line sequence
- Response line - Protocol, version, status code -
HTTP/ 1.1 200 OK
- Fields describing the server content
Empty line
Optional body

Question 5

Response codes HTTP?

Answer 5

1xx (Informational): Request received, continuing process
2xx (Successful): Request received, understood and accepted
3xx (Redirection): Firth action needs to be taken to complete request
4xx (Client Error): The request contains bad syntax or cannot be fulfilled
5xx (Server Error): The server failed to fulfil an apparently valid request