Database Dynamo Quiz: Test Your Data Skills! — Questions & Answers

This quiz contains 10 questions. Below is a complete reference of all questions, answer choices, and correct answers. You can use this section to review after taking the interactive quiz above.

1. Question 1: Question 1

   What Python library is commonly used for connecting to and interacting with relational databases like MySQL and PostgreSQL?

   • Requests
   • Pandas
   • SQLAlchemy
   • NumPy
   • Soupify
   Show correct answer

   Correct answer: SQLAlchemy

2. Question 2: Question 2

   Which SQL command is used to retrieve data from one or more tables in a database?

   • UPDATE
   • SELECT
   • INSERT
   • DELETE
   • CREATE
   Show correct answer

   Correct answer: SELECT

3. Question 3: Question 3

   What does the acronym ORM stand for in the context of database interactions?

   • Object Relational Mapping
   • Object Rendering Model
   • Ordered Resource Management
   • Object Request Manager
   • Operational Routing Mechanism
   Show correct answer

   Correct answer: Object Relational Mapping

4. Question 4: Question 4

   Which of the following is a common data serialization format often used for transmitting data between a server and a web application?

   • YAML
   • CSV
   • XML
   • JSON
   • pickle
   Show correct answer

   Correct answer: JSON

5. Question 5: Question 5

   What is the purpose of a 'WHERE' clause in an SQL query?

   • To specify the columns to retrieve
   • To sort the results
   • To filter the results based on a condition
   • To group the results
   • To join tables
   Show correct answer

   Correct answer: To filter the results based on a condition

6. Question 6: Question 6

   Which SQL keyword is used to sort the result-set of a query?

   • GROUP BY
   • SORT
   • FILTER
   • ORDER BY
   • ARRANGE
   Show correct answer

   Correct answer: ORDER BY

7. Question 7: Question 7

   In database terms, what does 'CRUD' stand for?

   • Create, Read, Update, Delete
   • Calculate, Render, Update, Display
   • Connect, Request, Upgrade, Disconnect
   • Copy, Rename, Upload, Download
   • Compile, Run, Utilize, Debug
   Show correct answer

   Correct answer: Create, Read, Update, Delete

8. Question 8: Question 8

   Which method is commonly used in Python's SQLAlchemy to execute a raw SQL query?

   • .execute()
   • .query()
   • .commit()
   • .connect()
   • .fetch()
   Show correct answer

   Correct answer: .execute()

9. Question 9: Question 9

   What is the primary key in a database table?

   • A foreign key's alternate name.
   • A unique identifier for each record.
   • An index on a frequently used column.
   • A column used for sorting data.
   • The largest value in a column.
   Show correct answer

   Correct answer: A unique identifier for each record.

10. Question 10: Question 10

    What is a common vulnerability that can occur when building SQL queries by directly concatenating user input without proper sanitization?

    • Cross-Site Scripting
    • Buffer Overflow
    • SQL Injection
    • Denial of Service
    • Session Hijacking
    Show correct answer

    Correct answer: SQL Injection