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

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

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

An advantage of partitioning is:

• Efficiency A
• Extra space B
• Reliabilty C
• Accuracy D

Which of the following keys us not unique:

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

Format specifier starts with the symbol

• # A
• % B
• * C
• all D

A factor to consider when choosing a file organization is:

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

Escape sequence starts with the character

• % A
• / B
• # C
• none D

Which of the following is basic data distribution strategy?

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

A file is stored in:

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

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

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

Which of the following activities are involved in data analysis?

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

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

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

Conditional operator is alternative of:

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

Which key does not have uniqueness property?

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

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

Conditional operator is also called:

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

Which of the following represents the entities?

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