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EMC D-DS-OP-23 Exam Syllabus Topics:

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

1. In order for a table to be normalized in 4NF, what two conditions must be met?

A) Table is in BCNF
No multi-valued dependencies exist
B) Table is in 3NF
No dependencies exist
C) Table is in BCNF
Multi-valued depen
D) Table is in 3NF
No multi-valued dependencies exist

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

A) Installing, configuring, testing, and maintaining operating systems, application software, and system management tools
B) Preparing the Big Data environment to be utilized by data scientists and other business stakeholders
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

3. The penalty that the EU supervisory authority levies on an organization that fails to comply with the General Data Protection Regulation (GDPR) is the greater of 4% of total global annual turnover or revenue, or a fixed fine amount.
What is the fixed fine amount, in millions of Euros?

A) 40
B) 20
C) 5
D) 10

4. What is the purpose of sensor operators in Apache Airflow?

A) Move data sequentially from one system to another
B) Perform validation checks in parallel
C) Use a poke method to monitor external processes
D) Use triggers to report each successive retry

5. In an Apache Spark Streaming environment, what acts as an entry point to the streaming system and provides methods to create and transform DStreams?

A) Spark Core
B) StreamingContext
C) Streams API
D) Receiver

Solutions: