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

Local variables are also called:

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

Which of the following can be used as flag value

• + A
• # B
• - C
• all D

Every relation must have:

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

In hybrid distribution, what types of fragments are stored at only one site?

• Critical fragments A
• Non-critical fragments B
• Critical and non-critical fragments C
• Only large fragments D

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

• one A
• many B
• three C
• zero D

The function clrscr ( ) is defined in

• stdio.h A
• math.h B
• canio.h C
• graphic.h D

A \t is used for:

• New line A
• Tab B
• Back space C
• None of these D

Which of the following escape sequence is used for beep

• /a A
• /b B
• /t C
• /n D

Which of the following represents the entities?

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

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

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

In an E-R diagram, a rectangle represents:

• Entity A
• Attributes B
• Relationship C
• None D

Conditional operator is also called:

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

Getch stands for:

• Go character A
• Give character B
• Get character C
• All of these D

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

• While A
• For B
• Do-while C
• None of these 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