Part-6, Basic Cisco Router and Switch configuration CCNA 200-120 - chapter 2
Flash memory, Console port, Telnet, Secure Shell (SSH), Auxiliary port (AUX), User EXEC mode, Privileged EXEC mode, Global configuration mode, Interface configuration mode, Line configuration mode, enable command, disable command, Context-sensitive help
Hot keys, Shortcuts, show version command, enable password , enable secret , console password, VTY password, service password-encryption command, show running-config, command, show startup-config command, Banners, banner motd #message# command