Question # 1

Which is used to display yes/no values:

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Check box

Option buttons

Both a & b

None of these

A \t is used for:

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New line

Tab

Back space

None of these

An index may be created on:

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Primary key

Secondary key

Foreign key

All

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

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While

For

Do-while

None of these

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

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Critical fragments

Non-critical fragments

Critical and non-critical fragments

Only large fragments

An entity related to itself in an ERD model refers to :

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Recursive relationship

One-to-many relationship

Many-to-many relationship

One-to-one relationship

Which of the following key does not hold uniqueness property ?

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candidate key

foreign key

primary key

Secondary key

In a relational database a single piece of information is called:

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Table

Record

Entity

Attribute

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

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one

many

three

zero

Conditional operator is also called:

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True operator

Ternary-operator

Truth operator

All of these

_______________ refers to a method of database distribution in which different portions of database reside at different nodes in the network.

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Spliting

Partitioning

Replication

Dividing

The relationship can be:

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One-to-one

One-to-many

Many-to-many

All

Which of the following activities are involved in data analysis?

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Data flow diagram

Decision Tables

Decision Trees

All

Which of the following is a valid format specifier

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%10d

%7.2f

%-7f

all

Escape sequence starts with the character

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%

/

#

none

An disadvantage of partitioning is:

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Complexity

Extra space and update time

Inconsistent access speed

All

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

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11.4519

11.45

11.51

11

Which key does not have uniqueness property?

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Candidate

Foreign key

Primary key

Secondary key

Which of the following keys us not unique:

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Candidate key

Forein key

Primary key

Secondary key

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

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Person

Object

Concept

Action

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

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Attributes

Entities

Relationships

Descriptors

Optional is represented by

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0

1

2

none of these

A technique for physically arranging the records of a file on secondary storage devices is called:

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Physical pointer

Retrieval program

File organization

Update program

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