Transport layers are TCP and UDP protocolsTCP is connection oriented which means packets of data flow are being delivered in a reliable way it resends data if there is a data collision or there are any errors - this is known as "guranteed delivery."

UDP is connectionless and it sends data packets through the internet at maximum speed, no form of control when data is sent over the internet, conecerned with speed e.g streaming videos, webpages, database information etc

HTTP - 80 Application layer
SSL - 443 TCP port
SNMP - simple network mangement protocol used to provide information to TCP/IP hosts.
FTP -21 Only basic Authentication allowed port 20=data port 21=control (Application layer)
POP - 110 TCP Port
DNS - Port 53 UDP Port query TCP Port 53 Zone Transfer 53.
PPTP - Point to point Tunneling protocol TCP Port 1723 Protocol Number 47
ARP, ICMP. IP (Internet layer)