____________________ is a guarantee that there are no duplicate records in a table, that each record is unique, and that no primary key field contains null values.

A security administrator is responsible for ensuring that there are no unauthorized devices utilizing the corporate network. During a routine scan, the security administrator discovers an unauthorized device belonging to a user in the marketing department. The user is using an android phone in order to browse websites. Which of the following device attributes was used to determine that the device was unauthorized?

A. An IMEI address B. A phone number C. A MAC address D. An asset ID

A search site on a web page always searches the entire Internet.

Answer the following statement true (T) or false (F)