Computer mcqs

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#109 Hierarchical DBMS organize data elements into _____________.

A) Segments
B) Data Compartments
C) Data Units
D) Objects
Answer: A

#110 Is a database model in which information is represented in the form of objects.

A) Network Database model
B) Relational Database Model
C) Object-oriented Database model
D) Hierarchical Database model
Answer: C

#111 Who is the person who has central control over data and programs in a database system?

A) DBA
B) Designer
C) System Analyst
D) Programmer
Answer: A

#112 In a relational terminology, an attribute is also called ___________.

A) Record
B) Entity
C) Field
D) Table
Answer: C

#113 A row in a table is also know as __________.

A) Column
B) Relational
C) Tuple
D) Table
Answer: C

#114 _________ is a set of rules or specifications which states that hoe data can be stored, organized and manipulated in a database system.

A) Database Model
B) Database design
C) Database Architecture
D) Database Structure
Answer: A

#115 Which of the following database uses a collection of the table to represent both data and the relationship among those data?

A) Network Database model
B) Relational Database Model
C) Object-oriented Database model
D) Hierarchical Database model
Answer: B

#116 ______________ is a database language that defines the structure in which data are stored.

A) DNL
B) DCL
C) DDL
D) DML
Answer: C

#117 A field, or a combination of fields used to identify particular row in a relation is called ___________.

A) Secondary key
B) Foreign key
C) Primary key
D) Alternate key
Answer: C

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