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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Preparation and Feature Engineering | 20% | - Feature Engineering Techniques
|
| Data Engineering Pipeline Optimization | 25% | - Pipeline Design and Performance
|
| Deployment and Operationalization | 15% | - Model Deployment
|
| Data Governance and MLOps | 15% | - Governance and Operations
|
| Machine Learning Model Optimization | 25% | - Model Tuning and Evaluation
|
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
1. What ordered set of terms refers to the process in which data is sourced from a relational database, enriched and merged with other datasets, then stored in a data lake?
A) Extract, Load, and Transform
B) Isolation, Atomicity, and Consistency
C) Atomicity, Consistency, and Isolation
D) Extract, Transform, and Load
2. Refer to the exhibit.
Which shows a table named Student.
What changes must be made to the table in order to achieve 1NF?
A) Split table into two tables named Student and DoB
B) Make Zip the primary key in the table
C) Split table into two tables named Student and Zip
D) Remove duplicate rows in the table
3. What is a typical task of a data engineer during a data analytics project?
A) Presenting financial benefits to executive stakeholders
B) Transforming data into a format that can be easily analyzed
C) Planning and performing A/B testing
D) Exploring and examining data to find hidden patterns
4. What is a common use case for a document-based NoSQL database like MongoDB?
A) Storing structured tabular data
B) Managing hierarchical data
C) Tracking real-time data streams
D) Performing complex SQL queries
5. What is the primary advantage of using dictionaries in Python data pipelines?
A) Dictionaries support mathematical operations
B) Dictionaries offer O(1) lookup time
C) Dictionaries maintain element order
D) Dictionaries allow duplicate values
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: B |
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