QUESTIONS AND SOLUTIONS
GUARANTEED PASS
●● Attribute.
Answer: is a characteristic or property of an entity. For the entity
employee, for example, attributes might include such characteristics as
first and last name, employee number, and date of hire
●● Big Data.
Answer: the large volume of data produced by every digital process,
system, sensor, mobile device, and even social media exchange.
●● Column.
Answer: also called a field or attribute
●● data analyst.
Answer: use tools and algorithms to mine a database for answers,
information, trends, and insights.
●● data file.
Answer: A spreadsheet that is used to store data, typically stores data as
one large table
, ●● data independence.
Answer: a quality that allows you to change the structure of a database
without requiring major changes to the programs that access the
database
●● data redundancy.
Answer: one problem that employees have with the project estimates
spreadsheet
●● data security.
Answer: is protection of data from threats and includes preventing
unauthorized access to the database, encrypting data as it travels through
a network, protecting against data corruption, and protecting against all
other electronic and physical attacks to the data.
●● database.
Answer: a collection of data organized in a manner that allows access,
retrieval, and use of that data.
●● database administrator (DBA).
Answer: a person or group should be in charge of the database,
especially if the database will serve many users.