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

SectionObjectives
Topic 1: Data Governance and Operations- Data quality management
- Lifecycle management of data solutions
- Security and compliance considerations
Topic 2: Data Science Foundations- Statistical analysis and probability concepts
- Feature engineering fundamentals
- Data exploration and preprocessing
Topic 3: Machine Learning and Modeling- Model evaluation and validation
- Supervised and unsupervised learning
- Algorithm selection and tuning
Topic 4: Data Engineering Principles- ETL/ELT processes
- Data storage architectures (data lakes, warehouses)
- Data pipeline design and orchestration
Topic 5: Optimization and Performance- Model performance tuning
- Optimization techniques for data workflows

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

1. Which IoT data processing tool uses a storage abstraction called Stream for continuous and unbounded data?

A) Pravega
B) EdgeX Foundry
C) Apache Storm
D) Apache NiFi


2. What is a challenge of managing data pipelines?

A) Monitoring is simply accomplished by the end users reporting any data quality issues
B) Guaranteeing there is no personally identifiable information in the extracted data
C) Ensuring that proper backups are available in the event of a data corruption
D) Making the data volume consistent, or at least easily predictable


3. Which of the following are characteristics of the Hadoop ecosystem? (Select all that apply)

A) Scalability
B) Real-time processing
C) Low fault tolerance
D) Batch processing
E) Single-node architecture


4. 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


5. Match each database type with its description.


Solutions:

Question # 1
Answer: A
Question # 2
Answer: C
Question # 3
Answer: A,D
Question # 4
Answer: A
Question # 5
Answer: Only visible for members

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