An employee reports they cannot log in because their account has been locked after multiple unsuccessful password attempts. Which command will restore access by reversing the lock state on their account?
chage -E 0 alice
passwd -d alice
passwd -u alice
usermod -L alice
The passwd -u command removes the lock flag set by passwd -l, re-enabling password-based authentication. Using usermod -L applies a lock rather than removing one, chage -E changes expiration dates instead of lock state, and passwd -d deletes the password, leaving the account without a password and not addressing the lock flag.
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