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| Section | Objectives |
|---|---|
| Data Engineering Principles | - Data storage architectures (data lakes, warehouses) - ETL/ELT processes - Data pipeline design and orchestration |
| Optimization and Performance | - Model performance tuning - Optimization techniques for data workflows |
| Machine Learning and Modeling | - Algorithm selection and tuning - Supervised and unsupervised learning - Model evaluation and validation |
| Data Governance and Operations | - Lifecycle management of data solutions - Security and compliance considerations - Data quality management |
| Data Science Foundations | - Data exploration and preprocessing - Feature engineering fundamentals - Statistical analysis and probability concepts |
1. What is metadata in the context of data governance?
A) Data about data
B) Data encryption keys
C) Data access logs
D) Data quality metrics
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) Make Zip the primary key in the table
B) Remove duplicate rows in the table
C) Split table into two tables named Student and Zip
D) Split table into two tables named Student and DoB
3. Which Python library provides the foundation for SciPy?
A) scikit-learn
B) NLTK
C) Pandas
D) NumPy
4. Which tool builds batch processing as a special case of stream data processing?
A) Apache Flink
B) Apache Oozie
C) Apache Spark
D) Apache Hive
5. What is a challenge of managing data pipelines?
A) Guaranteeing there is no personally identifiable information in the extracted data
B) Ensuring that proper backups are available in the event of a data corruption
C) Monitoring is simply accomplished by the end users reporting any data quality issues
D) Making the data volume consistent, or at least easily predictable
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: B |
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