If a browser sends a request to remote server to access a web page, then which…
2021
If a browser sends a request to remote server to access a web page, then which among the following is the correct sequence to send the packet over the network from a host? (Assume that the host has just restarted)
Answer: C. DNS query, TCP SYN, HTTP GET request — When a browser sends a request to access a web page, the following sequence occurs: DNS Query: The browser first sends a DNS query to resolve the domain name…
- A.
HTTP GET request, DNS query, TCP SYN
- B.
HTTP GET request, DNS query, TCP SYN
- C.
DNS query, TCP SYN, HTTP GET request
- D.
TCP SYN, DNS query, HTTP GET request
- E.
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Correct answer: C
When a browser sends a request to access a web page, the following sequence occurs: DNS Query: The browser first sends a DNS query to resolve the domain name to an IP address. TCP SYN: After obtaining the IP address, the browser initiates a TCP connection using a three-way handshake, starting with TCP SYN. HTTP GET Request: Once the TCP connection is established, the browser sends the HTTP GET request to retrieve the web page. Therefore, the correct sequence is DNS query, TCP SYN, HTTP GET request.