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

A file is stored in:

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

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

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

Which key does not have uniqueness property?

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

Which of the following is a valid format specifier

• %10d A
• %7.2f B
• %-7f C
• all D

Organizing the database in computer disk storage is done in:

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

Local variables are also called:

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

_______________ 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 represents the entities?

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

Which of the following activities are involved in data analysis?

• Data flow diagram A
• Decision Tables B
• Decision Trees C
• All 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 of the following are ingredients of data modeling?

• Entities A
• Attributes B
• Relationship C
• All D

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

A person's name, birthday and social security number are examples of:

• Attributes A
• Entities B
• Relationships C
• Descriptors D

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

• one A
• many B
• three C
• zero D

Escape sequence starts with the character

• % A
• / B
• # C
• none D

Customers,cars and parts are examples of:

• Entities A
• Attributes B
• Cardinals C
• Relashionships D

An disadvantage of partitioning is:

• Complexity A
• Extra space and update time B
• Inconsistent access speed C
• All D