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

_______________ refers to a method of database distribution in which one database contains data that are included in another database.

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

Which of the following is basic data distribution strategy?

• Centralized A
• Partitioned B
• Replication C
• All D

Optional is represented by

• 0 A
• 1 B
• 2 C
• none of these D

Which of the following is used to describe the characteristics of an object?

• Attribute A
• Relationship B
• Cardinality C
• Modality D

Which of the following is a valid format specifier

• %10d A
• %7.2f B
• %-7f C
• all D

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

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

Escape sequence starts with the character

• % A
• / B
• # C
• none D

A factor to consider when choosing a file organization is:

• Fast retrieval A
• Security B
• Efficient storage 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

A technique for physically arranging the records of a file on secondary storage devices is called:

• Physical pointer A
• Retrieval program B
• File organization C
• Update program D

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

Which of the following represents the entities?

• Teacher A
• Student B
• Aero plane C
• All D

Types of translators are:

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

Object used to retrieve data from database is called:

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

Conditional operator is alternative of:

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

Which of the following activities are involved in data analysis?

• Data flow diagram A
• Decision Tables B
• Decision Trees C
• All D

-------------------- defines the nature of the relationship

• cardinality A
• entities B
• modality C
• none of these D