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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Pipeline Optimization | 20% | - ETL/ELT workflow optimization - Reduce latency and improve throughput - Design scalable and efficient data pipelines |
| Topic 2: Storage & Data Management | 18% | - Data formats, partitioning, and indexing - SQL/NoSQL performance tuning - Distributed storage system optimization |
| Topic 3: Monitoring, Troubleshooting & Workload Management | 10% | - Bottleneck identification and resolution - Performance monitoring and logging - Cluster resource allocation |
| Topic 4: Governance, Security & Compliance | 15% | - Data governance policies - Security and privacy protection - Regulatory compliance |
| Topic 5: Data Processing Frameworks | 22% | - Batch and real-time processing optimization - Apache Spark optimization - Hadoop ecosystem tuning |
| Topic 6: Streaming & IoT Data Processing | 15% | - Pravega, Kafka, NiFi usage - Stream processing optimization - Real-time ingestion frameworks |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
Which of the following best describes the purpose of database normalization in a relational database schema?
- A. Reducing data redundancy
- B. Enforcing referential integrity
- C. Improving query performance
- D. Increasing data security
Correct Answer: A 🗳️
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. Split table into two tables named Student and Zip
- C. Make Zip the primary key in the table
- D. Remove duplicate rows in the table
Correct Answer: D 🗳️
Which feature of Apache Kafka makes it suitable for handling high-throughput data streams?
- A. In-memory data storage
- B. Static schema enforcement
- C. Partitioning and replication
- D. Only supports batch processing
Correct Answer: C 🗳️
Which CouchDB function can be used to create a document?
- A. Update
- B. List
- C. Create
- D. Insert
Correct Answer: A 🗳️
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. Isolation, Atomicity, and Consistency
- B. Extract, Transform, and Load
- C. Atomicity, Consistency, and Isolation
- D. Extract, Load, and Transform
Correct Answer: B 🗳️
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