As we all know, the Question mark in IOS is used as interactive help, but what about a ? in a password?
This could for example be a task in your CCIE Lab or at least in on of the many preparation labs.
To use the ? literal just enter crtl+v and then ?
Rack1SW3(config)#username cisco password SECR? LINE <cr>
ctrl+v ?
Rack1SW3(config)#username cisco password SECR? Rack1SW3(config)#
Easy stuff but good to know!
Of course the ? can also be used in ACL Names, Route-maps, etc…
Nice overview of Cisco IOS shortcuts, will try to add more!
Ctrl + A - Beginning Line Ctrl + B - Backward Character Ctrl + C - Clear line Ctrl + D - Delete Character to the Right Ctrl + E - End Line Ctrl + F - Forward Character Ctrl + H - Backspace Character to the Left Ctrl + I - Refresh Line and Goto End Ctrl + J - Return Ctrl + K - Delete everything on the Right of cursor Ctrl + L - Refresh Line Ctrl + M - Return Ctrl + N - Next Command Ctrl + P - Previous Command Ctrl + R - Refresh Line Ctrl + T - Flip Last 2 Characters Ctrl + U - Clear Line and Put in Buffer Ctrl + V - Allows A Control Character To Be Typed Ctrl + W - Delete Word Backwards and Put in Buffer Ctrl + X - Clear Line to the Left and Put in Buffer Ctrl + Y - Paste Buffer Contents