Identify the correct sequence in which the following packets are transmitted on the network by a host when a browser requests a webpage from a remote server, assuming that the host has just been restarted.

GATE : Computer Science and IT

Identify the correct sequence in which the following packets are transmitted on the network by a host when a browser requests a webpage from a remote server, assuming that the host has just been restarted.

A. HTTP GET request, DNS query, TCP SYN

B. DNS query, HTTP GET request, TCP SYN

C. DNS query, TCP SYN, HTTP GET request

D. TCP SYN, DNS query, HTTP GET request

Solution

C. DNS query, TCP SYN, HTTP GET request

Explanation

When a browser requests a webpage from a remote server then that requests (URL address) will be mapped to IP address using DNS, then TCP synchronization takes place after that HTTP verify whether it is existed in the web server or not.