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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Storage & Data Management | 18% | - Distributed storage system optimization - Data formats, partitioning, and indexing - SQL/NoSQL performance tuning |
| Data Processing Frameworks | 22% | - Batch and real-time processing optimization - Hadoop ecosystem tuning - Apache Spark optimization |
| Monitoring, Troubleshooting & Workload Management | 10% | - Cluster resource allocation - Performance monitoring and logging - Bottleneck identification and resolution |
| Data Pipeline Optimization | 20% | - ETL/ELT workflow optimization - Reduce latency and improve throughput - Design scalable and efficient data pipelines |
| Streaming & IoT Data Processing | 15% | - Real-time ingestion frameworks - Pravega, Kafka, NiFi usage - Stream processing optimization |
| Governance, Security & Compliance | 15% | - Data governance policies - Regulatory compliance - Security and privacy protection |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
Question #1
You are designing a genomics analysis application and need to set up an Apache Oozie job to execute a single MapReduce workflow at 12:00 AM EST every day.
Which Oozie job type should you implement?
A. Bundle
B. Coordinator
C. Workflow
D. JobTracker
Question #2
Which Apache project focuses on managing and governing metadata for Hadoop ecosystems?
A. Apache Ranger
B. Apache Atlas
C. Apache HBase
D. Apache Hive
Question #3
Which of the following are data pipeline best practices? (Select all that apply)
A. Using a monolithic design for simplicity
B. Avoiding error handling and monitoring
C. Using a single tool for all pipeline components
D. Ensuring data quality and validation
Question #4
Which tool builds batch processing as a special case of stream data processing?
A. Apache Oozie
B. Apache Flink
C. Apache Hive
D. Apache Spark
Question #5
What is the storage architecture of Pravega?
A. In-memory storage
B. File-based storage
C. Object-based storage
D. Columnar storage
Solutions:
| Question #1 Correct Answer: B | Question #2 Correct Answer: B | Question #3 Correct Answer: D | Question #4 Correct Answer: B | Question #5 Correct Answer: C |
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