You’ve gained physical access to a Windows 2008 R2 server which has an accessible disc drive. When you
attempt to boot the server and log in, you are unable to guess the password. In your tool kit you have an Ubuntu
9.10 Linux LiveCD. Which Linux based tool has the ability to change any user’s password or to activate
disabled Windows accounts?

A.
CHNTPW

B.
Cain & Abel

C.
SET

D.
John the Ripper

Explanation:
chntpw is a software utility for resetting or blanking local passwords used by Windows NT, 2000, XP, Vista, 7, 8
and 8.1. It does this by editing the SAM database where Windows stores password hashes.
https://en.wikipedia.org/wiki/Chntpw