To declare a two-dimensional array, two ____________ are required: The first one is for the number of rows, and the second one is for the number of columns.

To remove a cell from a worksheet, you select the cell and press the Delete key

Indicate whether the statement is true or false.

A network administrator wants to increase the confidentiality of the system by hardening the authentication process. Currently, the users log in using usernames and passwords to access the system. Which of the following will increase the authentication factor to three?

A. Adding a fingerprint reader to each workstation and providing a RSA authentication token B. Adding a fingerprint reader and retina scanner C. Using a smart card and RSA token D. Enforcing a stronger password policy and using a hand geometry scan