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LOG321 CHAPTER 4 Quiz

Authored by Ha Phuọngnx

Mathematics

University

Used 2+ times

LOG321 CHAPTER 4 Quiz
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is data modeling and why is it important in database design?

Data modeling is the process of creating a visual representation of the data and its relationships within a database. It is important in database design because it helps to ensure that the database is poorly structured and inefficient.

Data modeling is the process of creating a visual representation of the data and its relationships within a database. It is important in database design because it has no impact on the needs of the users and the organization.

Data modeling is the process of creating a visual representation of the data and its relationships within a database. It is important in database design because it helps to ensure that the database is well-structured, efficient, and meets the needs of the users and the organization.

Data modeling is the process of creating a visual representation of the data and its relationships within a database. It is important in database design because it makes the database less efficient and harder to use.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the process of normalization and its importance in database design.

Normalization does not affect data integrity

Normalization is not important in database design

Normalization increases data redundancy

Normalization is important in database design as it helps in minimizing data redundancy, improves data integrity, and reduces the chances of anomalies during data manipulation.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Draw an Entity-Relationship Diagram for a university database that includes entities such as students, courses, and professors.

Create a flowchart for the university database

Write a paragraph describing the university database

Use a pie chart to represent the university database entities

Identify the entities and their relationships, then use standard symbols and notation to represent them in the diagram.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the role of Relational Database Management Systems in modern data management.

RDBMS are not capable of efficient data retrieval

RDBMS provide a structured way to store, manage, and retrieve data, ensuring data integrity, security, and scalability, and allowing for efficient querying and analysis of large datasets.

RDBMS do not provide any security measures for data

RDBMS are only useful for small datasets

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the different types of SQL queries and provide an example of each?

SELECT, INSERT, UPDATE, DELETE, and CREATE

COPY, PASTE, CUT, PRINT

SEARCH, SORT, FILTER, JOIN

ADD, REMOVE, MODIFY, DROP

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does normalization help in reducing data redundancy and improving data integrity?

By duplicating data in multiple tables

By removing all relationships between tables

By storing all data in a single unorganized table

By organizing data into multiple related tables and enforcing relationships between them.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the key components of an Entity-Relationship Diagram and how are they used in database design?

Entities, attributes, and relationships

Data types, functions, and procedures

Queries, forms, and reports

Tables, columns, and indexes

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