Browser To Web Process

What happens when you enter google.com in the web browser?

1. Browser check IP of the URL in the cache. If not then OS need to do DNS lookup using DNS (Domain Name System) Protocol which uses UDP (User Diagram Protocol) to get the corresponding IP (Internet Protocol)).
2. New TCP (Transmission Control Protocol) connection is set
3. HTTP (HypterText Transfer Protocol) Request is sent
4. HTTP (HypterText Transfer Protocol) Response is sent from the server
5. Browser process HTTP (HypterText Transfer Protocol) response and may close TCP (Transmission Control Protocol) connection or reuse the same TCP