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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Streaming & IoT Data Processing | 15% | - Stream processing optimization - Real-time ingestion frameworks - Pravega, Kafka, NiFi usage |
| Topic 2: Governance, Security & Compliance | 15% | - Data governance policies - Security and privacy protection - Regulatory compliance |
| Topic 3: Data Pipeline Optimization | 20% | - ETL/ELT workflow optimization - Design scalable and efficient data pipelines - Reduce latency and improve throughput |
| Topic 4: Data Processing Frameworks | 22% | - Apache Spark optimization - Hadoop ecosystem tuning - Batch and real-time processing optimization |
| Topic 5: Storage & Data Management | 18% | - Distributed storage system optimization - Data formats, partitioning, and indexing - SQL/NoSQL performance tuning |
| Topic 6: Monitoring, Troubleshooting & Workload Management | 10% | - Bottleneck identification and resolution - Cluster resource allocation - Performance monitoring and logging |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
Which phase of a data analytics project involves data engineers extracting, transforming, and loading data from various sources into a centralized repository?
- A. Data exploration
- B. Data visualization
- C. Data modeling
- D. Data ingestion
Correct Answer: D 🗳️
Which characteristic of a relational database ensures that each row in a table is uniquely identifiable?
- A. Joins
- B. Primary key
- C. Foreign key
- D. Indexing
Correct Answer: B 🗳️
Why is Python commonly used for building data pipelines?
- A. It has no libraries for data manipulation
- B. It requires compilation for execution
- C. Its readability and extensive libraries
- D. It only supports batch processing
Correct Answer: C 🗳️
What is the main programming language supported by Apache Spark?
- A. Java
- B. Python
- C. C++
- D. Ruby
Correct Answer: B 🗳️
A company needs to fill an opening for a key tactical data governance position. The new hire is to be a subject matter expert on customer data and ensure the data policies and standards are adhered to on a daily basis. This role bridges the gap between a data governance program and its execution.
What is a suitable job title for this role?
- A. Data miner
- B. Data engineer
- C. Data scientist
- D. Data steward
Correct Answer: D 🗳️
