Exam Name: Dell Data Scientist and Data Engineering Optimize 2023
Certification Provider: EMC
Corresponding Certification: Dell Data Science
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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Machine Learning and Modeling | - Supervised and unsupervised learning - Algorithm selection and tuning - Model evaluation and validation |
| Data Science Foundations | - Feature engineering fundamentals - Data exploration and preprocessing - Statistical analysis and probability concepts |
| Optimization and Performance | - Optimization techniques for data workflows - Model performance tuning |
| Data Engineering Principles | - ETL/ELT processes - Data pipeline design and orchestration - Data storage architectures (data lakes, warehouses) |
| Data Governance and Operations | - Data quality management - Lifecycle management of data solutions - Security and compliance considerations |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
In a relational database, what is a minimal set of attributes to uniquely identify a record in a table?
- A. Primary key
- B. Candidate key
- C. Foreign key
- D. Super key
Correct Answer: A 🗳️
Which of the following are components of the ETL process? (Select all that apply)
- A. Visualization
- B. Transformation
- C. Loading
- D. Extraction
- E. Transmission
Correct Answer: B,C,D 🗳️
Match each data type with its corresponding Redis data structure.
Correct Answer:
What is metadata in the context of data governance?
- A. Data quality metrics
- B. Data encryption keys
- C. Data access logs
- D. Data about data
Correct Answer: D 🗳️
What is a characteristic of the Kerberos role in a Hadoop ecosystem?
- A. Used for authentication and authorization
- B. Bind-based authentication
- C. Designed to access directory services
- D. Secure user identification over insecure network
Correct Answer: D 🗳️
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