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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Pipeline Optimization | 20% | - Design scalable and efficient data pipelines - ETL/ELT workflow optimization - Reduce latency and improve throughput |
| Topic 2: Streaming & IoT Data Processing | 15% | - Real-time ingestion frameworks - Stream processing optimization - Pravega, Kafka, NiFi usage |
| Topic 3: Governance, Security & Compliance | 15% | - Regulatory compliance - Security and privacy protection - Data governance policies |
| Topic 4: Data Processing Frameworks | 22% | - Hadoop ecosystem tuning - Batch and real-time processing optimization - Apache Spark optimization |
| Topic 5: Storage & Data Management | 18% | - SQL/NoSQL performance tuning - Data formats, partitioning, and indexing - Distributed storage system optimization |
| Topic 6: Monitoring, Troubleshooting & Workload Management | 10% | - Cluster resource allocation - Bottleneck identification and resolution - Performance monitoring and logging |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
Which of the following are components of the Apache Spark architecture? (Select all that apply)
- A. Spark Streaming
- B. Spark Core
- C. Spark Cassandra
- D. Spark SQL
- E. Spark HBase
Correct Answer: A,B,D 🗳️
What is characteristic of HBase?
- A. High-level language platform for analyzing and querying large data sets stored in HDFS
- B. Tool that performs real-time write operations on large datasets using Key/Value pairs
- C. Tool that combines SQL, streaming, and complex analytics
- D. Data warehouse infrastructure that can compile SQL queries and run the jobs in cluster
Correct Answer: B 🗳️
What is an advantage of avoiding bias from the data?
- A. Minimize Bias-Variance trade-off
- B. Minimize transparency at the point of data collection
- C. Decrease trust between humans and machines
- D. Reduce misuse of data and facilitate its transparency
Correct Answer: D 🗳️
In Python, which non-primitive data structure can only be a collection of primitive data types?
- A. Tuple
- B. List
- C. Array
- D. Dictionary
Correct Answer: C 🗳️
What is a common use case for a document-based NoSQL database like MongoDB?
- A. Storing structured tabular data
- B. Performing complex SQL queries
- C. Managing hierarchical data
- D. Tracking real-time data streams
Correct Answer: C 🗳️
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