MTEL Business Practice Exam

Category - Business Operations

The computer language SQL is most often used to:
  1. Encrypt data on the Internet.
  2. Embed video files on a web site.
  3. Create simple animations.
  4. Extract information from a database.
Explanation
Correct Response: D. The computer language SQL (Structured Query Language) is used to build, populate, and extract information from a database. The information is extracted by using queries. Encryption is a process that encodes information to an unreadable form as a security strategy. Most encryption algorithms are based on the use of public and private keys, not SQL (A). HTML, not SQL, is typically used to embed video files on a web site (B). Simple animations can be made by quickly displaying related images. There is also software for creating animations, which is not SQL (C).
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