5. Routing Protocol
– UDP
– TCP
– TCP/IP
– HTTP
– RIP (Routing Information Protocol)
– OSPF (Open Shortest Path First Protocol)
– ICMP (Internet Control Message Protocol)
6. Telnet VS SSH
SSH(Secure Shell) Telnet
Runs on port 22 Runs on port 23
Very Secure Protocol Not Secure Protocol
Only major protocol to access Joint abbreviation
Difficult to decrypt No data encryption
All popular Operating System Linux , Windows