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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Storage & Data Management | 18% | - Distributed storage system optimization - Data formats, partitioning, and indexing - SQL/NoSQL performance tuning |
| Topic 2: Governance, Security & Compliance | 15% | - Regulatory compliance - Security and privacy protection - Data governance policies |
| Topic 3: Data Processing Frameworks | 22% | - Hadoop ecosystem tuning - Apache Spark optimization - Batch and real-time processing optimization |
| Topic 4: Monitoring, Troubleshooting & Workload Management | 10% | - Performance monitoring and logging - Bottleneck identification and resolution - Cluster resource allocation |
| Topic 5: Streaming & IoT Data Processing | 15% | - Real-time ingestion frameworks - Pravega, Kafka, NiFi usage - Stream processing optimization |
| Topic 6: Data Pipeline Optimization | 20% | - ETL/ELT workflow optimization - Reduce latency and improve throughput - Design scalable and efficient data pipelines |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
1. Which of the following describes Apache Flink?
A) A distributed file storage system
B) A graph processing framework
C) A stream processing framework
D) A batch processing engine
2. Which tools are used for security considerations in the Hadoop ecosystem? (Select all that apply)
A) Apache Sentry
B) Apache Knox
C) Apache Ranger
D) Apache Atlas
E) Apache Flink
3. In Python, which data type is one dimensional and immutable?
A) Tuple
B) Set
C) List
D) Array
4. Which of the following best describes the purpose of database normalization in a relational database schema?
A) Increasing data security
B) Improving query performance
C) Reducing data redundancy
D) Enforcing referential integrity
5. Which IoT data processing tool uses a storage abstraction called Stream for continuous and unbounded data?
A) EdgeX Foundry
B) Apache NiFi
C) Pravega
D) Apache Storm
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A,B,C,D | Question # 3 Answer: A | Question # 4 Answer: C | Question # 5 Answer: C |
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