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EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:

1. Which skill is crucial for a data engineer to effectively manage and optimize large-scale data processing systems?

A) Cloud computing
B) Front-end development
C) Graphic design
D) Data analysis

2. What is a data pipeline best practice related to Extract-Transform-Load (ETL) jobs?

A) ETL jobs should be manually executed and monitored to ensure the highest quality.
B) ETL jobs should be flexible to source data changes such as new variables or attributes.
C) A failed ETL job should be re-run immediately without taking any corrective actions.
D) A failed ETL job should always be marked as completed so that any other scheduled jobs can execute.

3. In a data analytics project, what is the primary responsibility of a data engineer?

A) Creating data visualizations
B) Conducting statistical analysis
C) Building data pipelines and ETL processes
D) Designing machine learning models

4. You are designing a database for an e-commerce data warehouse. The data is normalized in 1NF format and will be used to create data marts for different departments inside the organization.
Which schema type should be used for this requirement?

A) Graph
B) Star
C) Columnar
D) Highly Normalized

5. What is a primary task of a data engineer during a data analytics project?

A) Designing and integrating infrastructure, analyzing algorithms, modifying source code, and writing system instructions
B) Preparing the Big Data environment to be utilized by data scientists and other business stakeholders
C) Installing, configuring, testing, and maintaining operating systems, application software, and system management tools
D) Ensuring the successful initiation, planning, design, execution, monitoring, controlling, and closure of the project

Solutions: