12th Class ICS Computer Science Online MCQ Test for (Data Base Process)

Local variables are also called:

• Automatic variables A
• Global variables B
• Grid Variables C
• None of these D

An entity related to itself in an ERD model refers to :

• Recursive relationship A
• One-to-many relationship B
• Many-to-many relationship C
• One-to-one relationship D

Which key does not have uniqueness property?

• Candidate A
• Foreign key B
• Primary key C
• Secondary key D

Optional is represented by

• 0 A
• 1 B
• 2 C
• none of these D

The function clrscr ( ) is defined in

• stdio.h A
• math.h B
• canio.h C
• graphic.h D

An advantage of partitioning is:

• Efficiency A
• Extra space B
• Reliabilty C
• Accuracy D

Which is used to display yes/no values:

• Check box A
• Option buttons B
• Both a & b C
• None of these D

Types of translators are:

• Compiler A
• Interpreter B
• Assembler C
• All of these D

A data model is :

• A logical representation of the structure of the database A
• Shown as an entity-relationship diagram B
• Transformed into tables and relationships C
• All D

The output of the statement print ("%2f', 11.4519), is

• 11.4519 A
• 11.45 B
• 11.51 C
• 11 D

Which of the following is NOT included in the definition of an entity?

• Person A
• Object B
• Concept C
• Action D

In a relational database a single piece of information is called:

• Table A
• Record B
• Entity C
• Attribute D

• mendatory A
• optional B
• may be many C
• none of theses D

Which of the following can be used as flag value

• + A
• # B
• - C
• all D

The relationship can be:

• One-to-one A
• One-to-many B
• Many-to-many C
• All D

Organizing the database in computer disk storage is done in:

• Logical design A
• Physical design B
• Analysis C
• Implimentation D

_______________ refers to a method of database distribution in which different portions of database reside at different nodes in the network.

• Spliting A
• Partitioning B
• Replication C
• Dividing D