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EMC D-DS-OP-23

D-DS-OP-23

Exam Code: D-DS-OP-23

Exam Name: Dell Data Scientist and Data Engineering Optimize 2023

Updated: Sep 08, 2026

Q&A Number: 103 Q&As

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EMC D-DS-OP-23 Exam Syllabus Topics:

SectionWeightObjectives
Data Pipeline Optimization20%- Design scalable and efficient data pipelines
- ETL/ELT workflow optimization
- Reduce latency and improve throughput
Monitoring, Troubleshooting & Workload Management10%- Bottleneck identification and resolution
- Performance monitoring and logging
- Cluster resource allocation
Data Processing Frameworks22%- Batch and real-time processing optimization
- Hadoop ecosystem tuning
- Apache Spark optimization
Storage & Data Management18%- SQL/NoSQL performance tuning
- Distributed storage system optimization
- Data formats, partitioning, and indexing
Governance, Security & Compliance15%- Security and privacy protection
- Regulatory compliance
- Data governance policies
Streaming & IoT Data Processing15%- Pravega, Kafka, NiFi usage
- Stream processing optimization
- Real-time ingestion frameworks

EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:

Question 1

What is the main programming language supported by Apache Spark?

A. Python
B. Java
C. C++
D. Ruby


Question 2

What is a primary task of a data engineer during a data analytics project?

A. Preparing the Big Data environment to be utilized by data scientists and other business stakeholders
B. Ensuring the successful initiation, planning, design, execution, monitoring, controlling, and closure of the project
C. Installing, configuring, testing, and maintaining operating systems, application software, and system management tools
D. Designing and integrating infrastructure, analyzing algorithms, modifying source code, and writing system instructions


Question 3

In Python, which non-primitive data structure can only be a collection of primitive data types?

A. Tuple
B. Array
C. List
D. Dictionary


Question 4

In Python, which type of non-linear list always has a common root?

A. Queues
B. Graphs
C. Stacks
D. Trees


Question 5

What is a common use case for a document-based NoSQL database like MongoDB?

A. Tracking real-time data streams
B. Managing hierarchical data
C. Storing structured tabular data
D. Performing complex SQL queries


Solutions:

Question 1
Answer: A
Question 2
Answer: A
Question 3
Answer: B
Question 4
Answer: D
Question 5
Answer: B

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