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.

The standard sequence of steps when a user enters a URL in a web browser is:

1. DNS Resolution (4): The browser needs the server's IP address corresponding to the domain name, so it resolves the domain name using DNS.

2. TCP Connection Establishment (2): HTTP runs over TCP, so the browser initiates a 3-way handshake to establish a TCP connection with the web server.

3. HTTP Request (1): Once the TCP connection is established, the browser sends an HTTP GET request to fetch the webpage.

4. HTTP Response (3): The web server processes the request and sends the requested webpage back using HTTP.

Thus, the correct order is 4, 2, 1, 3, corresponding to option (A).