Question # 1

Which of the following activities are involved in data analysis?

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Data flow diagram

Decision Tables

Decision Trees

All

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

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Attributes

Entities

Relationships

Descriptors

_______________ refers to a method of database distribution in which one database contains data that are included in another database.

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Splitting

Partitioning

Replication

Dividing

A factor to consider when choosing a file organization is:

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Fast retrieval

Security

Efficient storage

All

Which key does not have uniqueness property?

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Candidate

Foreign key

Primary key

Secondary key

Object used to retrieve data from database is called:

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Forms

Repons

Queries

Tables

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

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11.4519

11.45

11.51

11

Which of the following can be used as flag value

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+

#

-

all

Which of the following escape sequence is used for beep

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/a

/b

/t

/n

Every relation must have:

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Primary key

Candidate key

Secondary key

All of these

Relationship are

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uni-directional

bi-directional

tri-directional

none of these

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

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diamond symbol

rectangular box

oval symbol

line

Getch stands for:

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Go character

Give character

Get character

All of these

An index may be created on:

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Primary key

Secondary key

Foreign key

All

Conditional operator is alternative of:

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If

If-else

Nested if-else

None of these

Organizing the database in computer disk storage is done in:

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Logical design

Physical design

Analysis

Implimentation

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

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Person

Object

Concept

Action

An advantage of partitioning is:

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Efficiency

Extra space

Reliabilty

Accuracy

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

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Table

Record

Entity

Attribute

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

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

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While

For

Do-while

None of these

Conditional operator is also called:

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True operator

Ternary-operator

Truth operator

All of these

Escape sequence starts with the character

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%

/

#

none

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