Chapter 7: Data and RDBMS - Python

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Chapter 7: Data and RDBMS

Chapter 7: Data and RDBMS

Fill in the Blanks

1. _______ refers to information that is collected, stored, and processed.
Answer: Data
2. Spreadsheets are used to organize data in _______ and columns.
Answer: rows
3. _______ is a database management system based on the relational model.
Answer: RDBMS
4. A _______ key uniquely identifies each record in a table.
Answer: primary
5. A _______ key is used to link two tables in a database.
Answer: foreign
6. The process of organizing tables to minimize redundancy is called _______.
Answer: normalization
7. In SQL, data is stored in _______.
Answer: tables

True or False

1. Data can be in the form of text, numbers, images, and videos.
Answer: True
2. Spreadsheets do not allow visualization of data.
Answer: False
3. Primary keys in a table can contain duplicate values.
Answer: False
4. Foreign keys are used to link two or more tables in a database.
Answer: True
5. An RDBMS allows data to be managed using SQL.
Answer: True
6. Normalization increases data redundancy in a database.
Answer: False
7. A relational database stores data in relations, also known as tables.
Answer: True

Match the Following

Question Answer
Data Information stored and processed
RDBMS Relational Database Management System
Primary Key Uniquely identifies a record
Foreign Key Links two tables
Normalization Minimizes redundancy in a database

Answer in One Sentence

1. What is data?
Answer: Data is information that is collected, stored, and processed in various formats.
2. What is an RDBMS?
Answer: It is a database management system that organizes data in tables and uses SQL for management.
3. What is the purpose of a primary key?
Answer: It uniquely identifies each record in a database table.
4. What is normalization?
Answer: It is a process to organize data and reduce redundancy in a database.
5. How do spreadsheets help in data management?
Answer: Spreadsheets organize data in rows and columns for easy manipulation and analysis.

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