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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Data Engineering Principles | - ETL/ELT processes - Data pipeline design and orchestration - Data storage architectures (data lakes, warehouses) |
| Topic 2: Data Science Foundations | - Statistical analysis and probability concepts - Feature engineering fundamentals - Data exploration and preprocessing |
| Topic 3: Optimization and Performance | - Optimization techniques for data workflows - Model performance tuning |
| Topic 4: Data Governance and Operations | - Security and compliance considerations - Lifecycle management of data solutions - Data quality management |
| Topic 5: Machine Learning and Modeling | - Model evaluation and validation - Supervised and unsupervised learning - Algorithm selection and tuning |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
1. Which of the following are components of the Apache Spark Streaming architecture? (Select all that apply)
A) Driver node
B) HDFS storage
C) Kafka topics
D) Discretized streams (DStreams)
E) Worker node
2. Which of the following are characteristics of the Hadoop ecosystem? (Select all that apply)
A) Scalability
B) Single-node architecture
C) Batch processing
D) Low fault tolerance
E) Real-time processing
3. What is metadata in the context of data governance?
A) Data encryption keys
B) Data access logs
C) Data quality metrics
D) Data about data
4. A company needs to fill an opening for a key tactical data governance position. The new hire is to be a subject matter expert on customer data and ensure the data policies and standards are adhered to on a daily basis. This role bridges the gap between a data governance program and its execution.
What is a suitable job title for this role?
A) Data miner
B) Data scientist
C) Data engineer
D) Data steward
5. Which skill is crucial for a data engineer to effectively manage and optimize large-scale data processing systems?
A) Graphic design
B) Cloud computing
C) Front-end development
D) Data analysis
Solutions:
| Question # 1 Answer: A,D,E | Question # 2 Answer: A,C | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: B |
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