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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Processing Frameworks | 22% | - Hadoop ecosystem tuning - Batch and real-time processing optimization - Apache Spark optimization |
| Topic 2: Streaming & IoT Data Processing | 15% | - Pravega, Kafka, NiFi usage - Stream processing optimization - Real-time ingestion frameworks |
| Topic 3: Storage & Data Management | 18% | - Distributed storage system optimization - Data formats, partitioning, and indexing - SQL/NoSQL performance tuning |
| Topic 4: Governance, Security & Compliance | 15% | - Regulatory compliance - Data governance policies - Security and privacy protection |
| Topic 5: Data Pipeline Optimization | 20% | - Reduce latency and improve throughput - Design scalable and efficient data pipelines - ETL/ELT workflow optimization |
| Topic 6: Monitoring, Troubleshooting & Workload Management | 10% | - Cluster resource allocation - Performance monitoring and logging - Bottleneck identification and resolution |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
1. Which NoSQL database type is most suitable for applications requiring high-speed, low-latency data retrieval based on simple lookups?
A) Column-family store
B) Document store
C) Key-value store
D) Time-series database
2. 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 engineer
B) Data scientist
C) Data miner
D) Data steward
3. What is a common use case for a document-based NoSQL database like MongoDB?
A) Tracking real-time data streams
B) Storing structured tabular data
C) Performing complex SQL queries
D) Managing hierarchical data
4. What is an advantage of avoiding bias from the data?
A) Decrease trust between humans and machines
B) Minimize Bias-Variance trade-off
C) Reduce misuse of data and facilitate its transparency
D) Minimize transparency at the point of data collection
5. What is the primary storage system used by the Hadoop ecosystem?
A) HDFS
B) MongoDB
C) Amazon S3
D) Cassandra
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: A |
