Which of the following is a non-technical skill that is essential for a data scientist?

Knowledge of SQL for querying databases

Ability to communicate findings to non-technical stakeholders

Understanding of machine learning algorithms

A financial services firm has a data scientist who has built a fraud detection model. The model's predictions are used by investigators to review suspicious transactions. Which activity is most aligned with the data scientist's primary responsibility in this scenario?

Configuring the firewall to protect the model's data from external threats.

Writing SQL queries to extract the suspicious transactions for the investigators.

Creating a PowerPoint presentation summarizing the fraud trends for the board.

Monitoring the model's performance and retraining it as fraud patterns evolve.

A social media company processes billions of posts daily. A data scientist is tasked with identifying trending topics in real time. Which approach best reflects the data scientist's role in this big data context?

Using distributed computing frameworks to run machine learning algorithms on the streaming data.

Creating a static report of the most popular topics from last month.

Manually reviewing a sample of posts each day to spot trends.

Storing all posts in a single relational database for easy querying.

A data scientist at a healthcare startup has built a model that predicts patient readmission risk. The model performs well in testing, but clinicians are hesitant to use it because they do not understand why certain patients are flagged. Which skill is most critical for the data scientist to apply in this situation?

Statistical expertise to run more hypothesis tests on the model's output.

Data engineering skills to clean the data more thoroughly before retraining.

Advanced programming in Python to refactor the model for better performance.

Communication skills to explain the model's logic and limitations in non-technical terms.

Which combination of skills is typically required for a data scientist?

Statistics, programming, and business communication

Project management, risk assessment, and compliance auditing

Network security, database administration, and system architecture

Graphic design, user experience, and front-end development

Dell Data Science Foundations

Domain 1Objective 3

Describe the Data Scientist Role and Related Skills DATA-SCIENCE-FOUNDATIONS Practice Questions (Page 2)

Part of the Big Data, Analytics, and the Data Scientist Role domain, which accounts for 5% of the DATA-SCIENCE-FOUNDATIONS exam.

24questions here

5free pages

4concepts

5%of the exam

Questions 6–10

6foundation · easy
Which of the following is a non-technical skill that is essential for a data scientist?
Select an answer first
7application · medium
A financial services firm has a data scientist who has built a fraud detection model. The model's predictions are used by investigators to review suspicious transactions. Which activity is most aligned with the data scientist's primary responsibility in this scenario?
Select an answer first
8application · medium
A social media company processes billions of posts daily. A data scientist is tasked with identifying trending topics in real time. Which approach best reflects the data scientist's role in this big data context?
Select an answer first
9application · medium
A data scientist at a healthcare startup has built a model that predicts patient readmission risk. The model performs well in testing, but clinicians are hesitant to use it because they do not understand why certain patients are flagged. Which skill is most critical for the data scientist to apply in this situation?
Select an answer first
10foundation · easy
Which combination of skills is typically required for a data scientist?
Select an answer first

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