What is the effect of using the service password-encryption command?

What is the effect of using the service password-encryption command?
A . Only the enable password will be encrypted.
B . Only the enable secret password will be encrypted.
C . Only passwords configured after the command has been entered will be encrypted.
D . It will encrypt the secret password and remove the enable secret password from the configuration.
E . It will encrypt all current and future passwords.

Answer: E

Explanation:

Encryption further adds a level of security to the system as anyone having access to the database of passwords cannot reverse the process of encryption to know the actual passwords which isn’t the case if the passwords are stored simply.