GATE CS 2014 Set 1 — Question 35

MCQ+1 / -0.33EasyDNSApplication LayerComputer NetworksTCP HandshakeTransport LayerHTTP & HTTPS

Computer Networks → Application Layer → DNS

Last updated 5 September 2026

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.

Correct answer (A) 4,2,1,3 Solution The correct sequence of actions for a web browser to fetch a webpage is: 1. DNS Resolution (4): The browser first needs to resolve the domain name (e.g., www.example.com) to an IP address using the Domain Name System (DNS). 2. TCP Connection (2): Once the IP address is known, the browser establishes a TCP connection with the web server (typically via a 3-way handshake). 3. HTTP Request (1): After the connection is established, the browser sends an HTTP request for the specific webpage. 4. HTTP Response (3): The web server processes the request and sends back the requested webpage using HTTP. Thus, the order is 4, 2, 1, 3. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (A) 4,2,1,3 Solution The correct sequence of actions for a web browser to fetch a webpage is: 1. DNS Resolution (4): The browser first needs to resolve the domain name (e.g., www.example.com) to an IP address using the Domain Name System (DNS). 2. TCP Connection (2): Once the IP address is known, the browser establishes a TCP connection with the web server (typically via a 3-way handshake). 3. HTTP Request (1): After the connection is established, the browser sends an HTTP request for the specific webpage. 4. HTTP Response (3): The web server processes the request and sends back the requested webpage using HTTP. Thus, the order is 4, 2, 1, 3.

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