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

Conditional operator is alternative of:

• If A
• If-else B
• Nested if-else C
• None of these D

The relationship can be:

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

Which is used to display yes/no values:

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

The number of variables that can be used in printf ( ) function are

• one A
• many B
• three C
• zero D

Which of the following is basic data distribution strategy?

• Centralized A
• Partitioned B
• Replication C
• All 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

Which of the following is a valid format specifier

• %10d A
• %7.2f B
• %-7f C
• all D

A factor to consider when choosing a file organization is:

• Fast retrieval A
• Security B
• Efficient storage C
• All D

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

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

Object used to retrieve data from database is called:

• Forms A
• Repons B
• Queries C
• Tables D

Data type int contain bytes:

• 10 A
• 4 B
• 2 C
• 1 D

An advantage of partitioning is:

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

Which of the following is used to associate entities with one another?

• Entity A
• Attribute B
• Identifier C
• Relationship D

A file is stored in:

• RAM A
• ROM B
• Cache C
• Hard disk D

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

In ERD model, the relationship between two entities is represented by a

• diamond symbol A
• rectangular box B
• oval symbol C
• line D

Conditional operator is also called:

• True operator A
• Ternary-operator B
• Truth operator C
• All of these D