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

Customers,cars and parts are examples of:

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

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

Every relation must have:

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

Which of the following is a valid format specifier

• %10d A
• %7.2f B
• %-7f C
• all D

An attribute is also known as:

• Table A
• Field B
• Row C
• Relation D

Which of the following escape sequence is used for beep

• /a A
• /b B
• /t C
• /n D

A factor to consider when choosing a file organization is:

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

Conditional operator is also called:

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

Escape sequence starts with the character

• % A
• / B
• # C
• none 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
• on to one relationship D

Which of the following can be used as flag value

• + A
• # B
• - C
• all D

A file is stored in:

• RAM A
• ROM B
• Cache C
• Hard disk 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 component of physical database design refers to the consistency of data?

• Indexes A
• Integrity constaint B
• File organization C
• Data distribution strategy D

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

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

Object used to retrieve data from database is called:

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

Organizing the database in computer disk storage is done in:

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