emu415-week4

emu415-week4

University

10 Qs

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emu415-week4

emu415-week4

Assessment

Quiz

Information Technology (IT)

University

Practice Problem

Easy

Created by

Erdi Dasdemir

Used 1+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you communicate with your database?

By using HTML
By using JavaScript
By using Structured Query Language (SQL)
By using PHP

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes the goal of data normalization in databases?

To increase data redundancy for faster access

To simplify user interface design

To structure data to minimize redundancy and reduce anomalies

To convert unstructured data into visual reports

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a primary key?

A single unique identifier for a record

A unique key used as a second key in another table

To ensure that data is secure

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a foreign key?

Checking if a related record exists before allowing it to be entered

A field in a table that forms a relationship link with a primary key in another table

To ensure that data is secure and only repeated when required

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the primary key in this database?

Emp_Id
Last Name
Gender
Title

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following statements about primary and foreign keys is true?

A primary key and a foreign key are the same and serve the same purpose in a database.

A foreign key is a secondary key that helps the primary key uniquely identify each row in its own table.

Primary keys are used in relational databases and foreign keys are used in NoSQL databases.

A foreign key of a table can reference the primary key of another table.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should a primary key contain?

A lot of different values
A null value
An unique value

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