Does not support encryption
IT ESS 1 chapter 3 exam
Telnet is non secure, travel data in open form you can easily theft/capture data, ssh is secure transmission of data over network, telnet is little bit faster than SSH, because it is not encrypting data, SSh is little slower than telnet because encrypt data when transmitting over network
SSH is more secure than Telnet.
ssh
SSH
A secure replacement for Telnet is SSH (Secure Shell). Unlike Telnet, which transmits data in plain text, SSH encrypts the communication between the client and server, providing confidentiality and integrity. This makes SSH a preferred choice for secure remote access and management of systems over an unsecured network. Additionally, SSH offers features like secure file transfer and tunneling, enhancing its capabilities beyond what Telnet provides.
Use of SSH or VTY ACLs.
An administrator would use the Global Configuration Mode to configure the router for SSH or Telnet login access. In this mode, they can set up parameters like enabling the vty lines, configuring the transport input method (SSH or Telnet), and setting up authentication mechanisms such as usernames and passwords. For SSH specifically, additional steps involve generating cryptographic keys and configuring the SSH version.
You don't. Use telnet, rlogin or ssh.
*encryption
Putty uses port 22, the same as telnet and ssh.
Pinging a server just checks that Particular system is present on the network. Telnet or SSH are application to login the server from remote and use the services provided by the server. In TELNET DATA is not encrypted so it's easy to hack. In SSH DATA is encrypted so it's safe.
It will require you to SSH to the router rather than telnet. You will have to use a program like Putty or some other SSH client.