QTHTTT_Giữa kỳ 05

The action of including only some columns for output while retrieving data is known as ____.

• a. selecting
• b. linking
• c. joining
• d. projecting

The smallest piece of data used by a computer is a(n) _____

• a. byte
• b. bit
• c. entity
• d. character

A _____ is a simple database program whose records have no relationship to one another.

• a. schema
• b. user view
• c. flat file
• d. relational system

A collection of fields all related to a single object, activity, or individual is a(n) _____.

• a. file
• b. attribute
• c. record
• d. character

Suppose a new tech startup wants to define the data model. They would then ____.

• a. acquire a new database management system
• b. create the entity-relationship model
• c. collect and cleanse the data
• d. define user access privileges

The position of a _____ is a non-technical position responsible for defining and implementing consistent principles for setting data standards and data definitions that apply across all the databases in an organization.

• a. data owner
• b. data analyst
• c. data administrator
• d. database administrator

A database is a collection of integrated and related _____.

• a. fields
• b. records
• c. attributes
• d. files

_____ is the term used to describe enormous and complex data collections that traditional data management software, hardware, and analysis processes are incapable of handling.

• a. Data warehouse
• b. Big data
• c. Knowledge base
• d. Data mart

At Coast-to-Coast Moving and Van Lines, Ryan is responsible for managing the flow of the company's data, from initial acquisition of new data to deletion of old, outdated data. Ryan is involved in ___________.

• a. data management
• b. data stewardship
• c. data lifecycle management
• d. database administration

Which of the following statements is true of a database?

• a. It is a collection of unstructured data.
• b. It is accessed primarily for use by an organization’s database administrator and data administrator.
• c. It provides an essential foundation for an organization’s knowledge management and artificial intelligence systems.
• d. It helps companies analyze information to open new market opportunities.