a)  A host is sending a HTTP request to a HTTP server. In the table below, propose a correct set of source and destination port numbers for segments sent from host to server and from server to host resulting from this request.

Segment                              Source port number                       Destination port number  

from host to server  

from server to host

b)  List all application layer and transport layer protocols that will be used by a host to download a web page from a server. Assume that the IP address of the server is not known to the host.

Note: the number of cells in the table does not have to match the number of protocols you will list.

Application protocols                                     Transport protocols