Intro to Web Servers

Question 1

What is

HTTP

Answer 1

The fundamental data transfer protocol for the World Wide Web.

Question 2

HTTP is an application-layer protocol with what features?

Answer 2

• It assumes client-server architecture
• It is stateless.
• It has two kinds of messages:
  
  • Requests: Sent by client
  • Responses: Sent by server

Question 3

What are the different request methods that a client can use?

Answer 3

• GET
• POST
• PUT
• HEAD
• DELETE

Question 4

How does a HTTP Request identify a resource?

There are two options.

Answer 4

• Uniform Resource Identifier (URI)
• Uniform Resource Locator (URL)

Question 5

What is a

Web Server

Answer 5

A process that listens for and accepts HTTP messages, sent through network connections.

Question 6

Briefly describe the

Web Server Process

Answer 6

1. The server listens on a port
2. The browser (client) opens a network connection to the port at which the web server is listening for incoming requests.
3. The server responds by locating the requested resource and sending it back to the browser (client).

Question 7

What do web applications need to offer services over HTTP?

Answer 7

Web applications require clients to identify the service and identify how to communicate with it.

Question 8

What approach will our web application implement?

Answer 8

RESTful Approach (Representational State Transfer)