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

Which of the following are ingredients of data modeling?

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

Data type int contain bytes:

• 10 A
• 4 B
• 2 C
• 1 D

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

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

Customers,cars and parts are examples of:

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

Local variables are also called:

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

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

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

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

• one A
• many B
• three C
• zero 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

Which of the following escape sequence is used for beep

• /a A
• /b B
• /t C
• /n 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

Format specifier starts with the symbol

• # A
• % B
• * C
• all D

Every relation must have:

• Primary key A
• Candidate key B
• Secondary key C
• All of these D

Object used to retrieve data from database is called:

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

In a loop semicolon is placed at the end of condition:

• While A
• For B
• Do-while 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

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

A file is stored in:

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