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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Optimization and Performance | - Model performance tuning - Optimization techniques for data workflows |
| Topic 2: Machine Learning and Modeling | - Algorithm selection and tuning - Model evaluation and validation - Supervised and unsupervised learning |
| Topic 3: Data Engineering Principles | - Data pipeline design and orchestration - Data storage architectures (data lakes, warehouses) - ETL/ELT processes |
| Topic 4: Data Governance and Operations | - Security and compliance considerations - Lifecycle management of data solutions - Data quality management |
| Topic 5: Data Science Foundations | - Data exploration and preprocessing - Feature engineering fundamentals - Statistical analysis and probability concepts |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
In Python, which data type is one dimensional and immutable?
- A. Tuple
- B. Array
- C. Set
- D. List
Correct Answer: A 🗳️
You are designing a genomics analysis application and need to set up an Apache Oozie job to execute a single MapReduce workflow at 12:00 AM EST every day.
Which Oozie job type should you implement?
- A. Coordinator
- B. JobTracker
- C. Bundle
- D. Workflow
Correct Answer: A 🗳️
Which of the following are key roles in data governance? (Select all that apply)
- A. Data Owner
- B. Data Scientist
- C. Data Analyst
- D. Data Steward
- E. Chief Information Officer (CIO)
Correct Answer: A,D,E 🗳️
Why is Python commonly used for building data pipelines?
- A. It requires compilation for execution
- B. It only supports batch processing
- C. It has no libraries for data manipulation
- D. Its readability and extensive libraries
Correct Answer: D 🗳️
With Apache Kafka, what is an advantage of implementing the Publish/Subscribe messaging system over Point-to-Point messaging system?
- A. Any message published to a topic is received only by a few subscribers to that topic
- B. Messages can be dynamically moved between topics to improve the overall throughput of the system
- C. Any message published to a topic is immediately received by all the subscribers to that topic
- D. Messages stored are deduplicated automatically to increase the overall storage capacity of a topic
Correct Answer: C 🗳️
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