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

1. What type of expertise is required to be an effective data engineer?

A) Business analysis
B) Accounting
C) Big Data tools
D) Project management

2. What is an advantage of avoiding bias from the data?

A) Reduce misuse of data and facilitate its transparency
B) Decrease trust between humans and machines
C) Minimize Bias-Variance trade-off
D) Minimize transparency at the point of data collection

3. What is a characteristic of the Kerberos role in a Hadoop ecosystem?

A) Secure user identification over insecure network
B) Designed to access directory services
C) Bind-based authentication
D) Used for authentication and authorization

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

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

5. What is the primary storage system used by the Hadoop ecosystem?

A) MongoDB
B) Amazon S3
C) HDFS
D) Cassandra

Solutions: