11. Wireshark & HTTP
Request
Below At line 4 we are trying to get download.html via HTTP protocol 1.1

Some Headers:
- Host = This is the web server name where client is sending HTTP GET request.
- Connection: Keep-Alive = Connection controls whether the network connection stays open after the current transaction finishes. Connection type is keep alive.
- Accept = Tells server about the type of file we [client side browser] can accept.
- Accept-Encoding: gzip, deflate = Accepted encoding in client side.
Response

At line 6 server was able to found that page and sent us HTTP status code 200
The file is transfered using TCP packets.
We can also see that server is using Apache, content type is HTML, how long is the content length is.