Databricks Data Engineer Associate Question 55
Single answerYou are working on a Databricks notebook to preprocess data using Python and visualize results using SQL. How can you use multiple languages within the same notebook effectively?
- A
Use language-specific magic commands (e.g., %python, %sql) at the beginning of the cell.
- B
Switch the notebook's default language every time you need to use a different language.
- C
Create separate notebooks for each language and link them together.
- D
Use a single language throughout the notebook as Databricks does not support mixing languages in a single notebook.
Show answer and explanation
Correct answer: A
Explanation
Databricks notebooks support the use of multiple languages (e.g., Python, SQL, Scala, and R) within the same notebook by using magic commands like %python, %sql, %scala, and %r at the beginning of each cell. This feature allows data engineers to efficiently combine data processing, analysis, and visualization tasks in a single notebook without needing to switch between different notebooks.
- A. Correct.
Correct. In Databricks notebooks, you can use language-specific magic commands (e.g., %python, %sql, %scala, %r) at the beginning of the cell to indicate the language for that particular cell.
- B. Incorrect.
Incorrect. Changing the notebook's default language does not allow mixing multiple languages in the same notebook. Magic commands are required for this purpose.
- C. Incorrect.
Incorrect. While you can create separate notebooks for different languages, this is not necessary as Databricks supports multiple languages within the same notebook using magic commands.
- D. Incorrect.
Incorrect. Databricks fully supports using multiple languages within the same notebook; you just need to use the appropriate magic commands.