DBMS MCQ Question and Answer
DBMS MCQ Question and Answer
91. A characteristic or quality describing a particular entity is called
- record
- file
- attribute
- pointer
92. Which of the following is an attribute?
- a student
- a student database
- a student personal history file
- a student
93.
The field in a record that uniquely identifies instances of that record so that it
can be retrieved, updated, or sorted best describes
- master key
- master field
- attribute
- key field
95. Problems with the traditional file environment include
- data redundancy
- poor data security
- inability to share data among applications
- all of the above
96. The situation that occurs when different divisions, functional areas, and groups in
an organization independently collect the same piece of information best describes
- program-data independence
- data redundancy
- lack of flexibility
- poor security
98. A logical view is
- the process of creating small stable data structures from complex groups of data when designing a relational database.
- a methodology for documenting databases illustrating the relationship between various entities in the database.
- an approach to data management that stores both data and the procedures acting on the data as objects that can be automatically retrieved and shared.
- a representation of data as they would appear to an application programmer or user.
99. The language associated with a database management system that is employed by end
users and programmers to manipulate data in the database is the
- data definition language
- data presentation language
- data manipulation language
- data translation language