A complete binary tree with N nodes has depth approximately equal to

Your company has implemented a new authentication system for the server room. To be given access to the room, a user must provide his user name and password. Once those factors are authenticated, the user must then provide his smart card. Which type of authentication is being used?

A. one-factor authentication B. two-factor authentication C. three-factor authentication D. four-factor authentication

SQL Server ____________ Monitor is a dashboard that allows you to monitor system  behavior through a simple graphical user interface.

Fill in the blank(s) with the appropriate word(s).