ETL Process Quiz

Avni is working on a data project where she needs to process large amounts of information from various sources. She needs to understand the process that involves extracting data, transforming it into a suitable format, and then loading it into a database. What does ETL stand for?

• Evaluate, Transform, Load

• Extract, Transform, Load

• Evaluate, Test, Load

• Extract, Transfer, Load

Avni is working on a data project where she needs to gather information from various sources. What is the primary goal of the Extraction phase?

• To clean the data

• To analyze the data

• To load data into the warehouse

• To gather data without altering its format

Arjun is trying to organize his data for a project. He needs to choose a data source that is structured and easy to query. Which of the following is a structured data source?

• SQL databases

• JSON

• Emails

• Flat files

During a data migration project, Mira is responsible for overseeing the Transformation phase. What happens during this phase?

• Data is loaded into the warehouse

• Data is analyzed for insights

• Data is collected from sources

• Data is cleaned, aggregated, and formatted

Nikita is working on a data analysis project. She needs to perform various operations on the data she has collected. Which of the following is NOT a common transformation operation she might use?

• Data Filtering

• Data Sorting

• Data Loading

• Data Aggregating

Aanya is working on a research project and has collected a large dataset. However, she notices that some of the data points are irrelevant or incorrect. What is the purpose of data filtering in her project?

• To summarize data

• To remove irrelevant or incorrect data

• To organize data

• To convert data types

Ria is working on a data project where she needs to ensure that all necessary information is available for analysis. What does the Loading phase involve in her project?

• Cleaning the data

• Aggregating data for analysis

• Extracting data from sources

• Transferring data into a target system

Avni is tasked with loading data into a new database for her company. She needs to ensure that all relevant information is transferred without any omissions. What does a Full Load mean in the context of data loading?

• Data is filtered before loading

• All data is loaded into the target system

• Only new data is loaded

• Data is aggregated before loading

In a company meeting, the team is discussing various tools for managing their data. Eshaan mentions several platforms, and the team needs to decide which one is specifically a data warehouse platform. Which of the following options should they choose?

• Apache Airflow

• Tableau

• Informatica

• Amazon Redshift

In a data-driven company, Divya is tasked with improving the data processing workflow. She needs to understand the role of ETL/ELT tools in this process.

• To design data models

• To manage data quality

• To extract, transform, and load data

• To visualize data