Question

Identify the correct order in which the following actions take place in an interaction between a web browser and a web server.

1. The web browser requests a webpage using HTTP.

2. The web browser establishes a TCP connection with the web server.

3. The web server sends the requested webpage using HTTP.

4. The web browser resolves the domain name using DNS.
1. 4, 2, 1, 3
2. 1, 2, 3, 4
3. 4, 1, 2, 3
4. 2, 4, 1, 3

Answer 1

Correct Answer - Option 1 : 4, 2, 1, 3

The correct order in which the following actions take place in an interaction between a web browser and a web server

Step 1:

The web browser first needs to figure out IP address of site from URL using DNS. This is typically called domain name resolution.

Step 2:

TCP connection is established mostly at port 80.

Step 3:

Once the TCP connection is established, the browser sends an HTTP request using GET method.

Step 4:

Finally, web server responds with HTTP response that is, the page we requested.

Hence, the correct sequence of actions is 4, 2, 1, 3