MCQ 1

MCQ 1

12th Grade

15 Qs

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MCQ 1

MCQ 1

Assessment

Quiz

English

12th Grade

Practice Problem

Medium

Created by

Pawan Kumar

Used 2+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Data is best described as:

Organized facts

Raw facts and figures

Processed information

A set of reports

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In the database approach, data can be shared among multiple users. This is called:

Data isolation

Data redundancy

Data sharing

Data independence

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In which phase of the database system life cycle is the ER diagram created?

Database Design

Database Implementation

Database Maintenance

Database Testing

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which phase in the database system life cycle involves regular backups and monitoring system performance?

Requirements Analysis

Database Maintenance

Database Implementation

Database Design

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In the relational model, data is organized into:

Graphs

Records

Relations (tables)

Nodes and edges

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A primary key in a database:

Can have duplicate values

Must have unique and not null values

Can contain null values

Can be a composite of multiple fields

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A foreign key is used to:

Enforce referential integrity between two tables

Uniquely identify each record in a table

Define the data type of a column

Index the records in a table

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