Which option is a valid hostname for a switch?
A . 5witch-Cisco
B . Switch-Cisco!
C . 5witchCisco
D . SwitchCisc0
Answer: D
Explanation:
Hostnames can’t start with a number, and can’t have special characters (bangs/exclamation) (but can have a dash).
A starts with a number.
B has a bang at the end.
C starts with a number.
Only D is correct.