Data Engineering Lifecycle Stages

What is the origin of the data used in the data engineering lifecycle?

A source system, such as an IoT device, an application message queue, or a transactional database.

Why is choosing a storage solution a key stage in the data lifecycle?

Because data architectures often leverage several storage solutions, and storage solutions support complex transformation queries, and it frequently touches on other stages, such as ingestion, transformation, and serving.

What is the purpose of storing data after collecting it?

To store data for further processing and analysis.

What is required to store big data efficiently?

Special techniques, such as HDFS, Amazon AWS, and Google Big Table, and special tools to analyze it. Signup and view all the answers

When can data be stored locally?

When the data is small. Signup and view all the answers

What is the significance of data storage in the data engineering lifecycle?

It's a critical stage that touches on other stages, such as ingestion, transformation, and serving, and has a significant impact on the rest of the data lifecycle. Signup and view all the answers

What is the primary purpose of data ingestion in the data engineering lifecycle?

To consume data from multiple sources and transfer it into a destination database or data warehouse for further processing and analysis. Signup and view all the answers

What are the three key aspects of big data that are referred to as the 3Vs framework?

Volume, Velocity, and Variety. Signup and view all the answers

What is the main objective of data transformation in the data engineering lifecycle?

To convert, cleanse, and structure data into a usable format for analysis and decision-making. Signup and view all the answers

What are the different types of data transformation that can occur during the data engineering lifecycle?

Constructive, Destructive, Aesthetic, and Structural. Signup and view all the answers

What is the final stage of the data engineering lifecycle, where data is made available for analysis and decision-making?

Serving. Signup and view all the answers

What is the primary element of a structured file?

The rows and columns are aligned consistently throughout the file. Signup and view all the answers

Why is data transformation an essential step in the data engineering lifecycle?

Because it ensures that data is in a usable format that can be analyzed to support decision-making and drive business growth. Signup and view all the answers

What type of data requires flattening prior to loading into a source system?

Semi-structured data Signup and view all the answers

What is the ultimate goal of data scientists when applying various techniques to data?

Extracting valuable knowledge, patterns, and insights Signup and view all the answers

What type of data storage includes data stored as key-value pairs that don't adhere to standard relational models?

Unstructured data Signup and view all the answers

What is the first stage of the data life cycle, which involves collecting data from various sources?

Generate the data Signup and view all the answers

What is the stage of the data life cycle where data is presented in a graphical format to facilitate understanding?

Visualize the results Signup and view all the answers