Book Image

Cracking the Data Science Interview

By : Leondra R. Gonzalez, Aaren Stubberfield
Book Image

Cracking the Data Science Interview

By: Leondra R. Gonzalez, Aaren Stubberfield

Overview of this book

The data science job market is saturated with professionals of all backgrounds, including academics, researchers, bootcampers, and Massive Open Online Course (MOOC) graduates. This poses a challenge for companies seeking the best person to fill their roles. At the heart of this selection process is the data science interview, a crucial juncture that determines the best fit for both the candidate and the company. Cracking the Data Science Interview provides expert guidance on approaching the interview process with full preparation and confidence. Starting with an introduction to the modern data science landscape, you’ll find tips on job hunting, resume writing, and creating a top-notch portfolio. You’ll then advance to topics such as Python, SQL databases, Git, and productivity with shell scripting and Bash. Building on this foundation, you'll delve into the fundamentals of statistics, laying the groundwork for pre-modeling concepts, machine learning, deep learning, and generative AI. The book concludes by offering insights into how best to prepare for the intensive data science interview. By the end of this interview guide, you’ll have gained the confidence, business acumen, and technical skills required to distinguish yourself within this competitive landscape and land your next data science job.
Table of Contents (21 chapters)
Free Chapter
1
Part 1: Breaking into the Data Science Field
4
Part 2: Manipulating and Managing Data
10
Part 3: Exploring Artificial Intelligence
16
Part 4: Getting the Job

Learning the basics of data storage

As stated earlier, the data storage step in the model pipeline process tends to be a function of machine learning/data engineers. However, it is beneficial for a data scientist to have a basic understanding of this step.

Data storage is simply about housing the data that we gather from different sources. There are a variety of approaches to this, depending on the data’s requirements (e.g., the structure, schema, size, ingestion type, privacy, etc.).

The following are some examples of data storage options within MLOps:

  • Binary Large Object (BLOB) storage: BLOB storage is a type of data storage that is designed to store and manage large binary data, such as images, videos, documents, and other types of files. BLOBs can be of varying sizes, from small to very large, and they are typically unstructured data, meaning they lack a specific schema or organization. In modern data architectures, the cloud services offered by Azure Blob...