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

Which of the following is used to associate entities with one another?

• Entity A
• Attribute B
• Identifier C
• Relationship D

Escape sequence starts with the character

• % A
• / B
• # C
• none D

Types of translators are:

• Compiler A
• Interpreter B
• Assembler C
• All of these D

Conditional operator is also called:

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

The relationship can be:

• One-to-one A
• One-to-many B
• Many-to-many C
• All D

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

• Attributes A
• Entities B
• Relationships C
• Descriptors 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

A data model is :

• A logical representation of the structure of the database A
• Shown as an entity-relationship diagram B
• Transformed into tables and relationships C
• All D

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

In an E-R diagram, a rectangle represents:

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

Local variables are also called:

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

A file is stored in:

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

Getch stands for:

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

Which key does not have uniqueness property?

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

A factor to consider when choosing a file organization is:

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

An attribute is also known as:

• Table A
• Field B
• Row C
• Relation 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