Ethical Hacking Essentials Practice Test

What is the correct order involved in the web application mechanism when a user enters a URL in a browser?

1. 1 -> 2 -> 3 -> 4 -> 5

2. 1 -> 3 -> 5 -> 2 -> 4

3. 2 -> 3 -> 4 -> 1 -> 5

4. 3 -> 1 -> 4 -> 5 -> 2

The correct answer is: 1 -> 3 -> 5 -> 2 -> 4

The sequence of events that occurs when a user enters a URL in a web browser involves several key steps that illustrate the interaction between the client (the user's browser) and the server hosting the web application. Initially, when a user inputs a URL, the browser will resolve the domain name using DNS (Domain Name System). This means that the browser translates the human-readable domain (like www.example.com) into an IP address that the internet can understand, which corresponds to where the web server is located. Once the IP address is obtained, the browser sends an HTTP or HTTPS request to that server asking for the resource associated with the URL. This request is the second major step in the process. Following that, the server receives the request and processes it. During this stage, the server might interact with the web application's backend, which could involve querying a database, executing code, or performing any necessary actions to generate the desired response. After processing the request, the server returns the appropriate data or resource (like an HTML page or image) back to the browser. This response is the final step in which the server sends the information that will ultimately be displayed to the user. Therefore, the order in which these actions occur, from entering a URL to the