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Exam Code: D-DS-OP-23
Exam Name: Dell Data Scientist and Data Engineering Optimize 2023
Updated: Aug 03, 2026
Q & A: 103 Questions and Answers
D-DS-OP-23 Free Demo download
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Monitoring, Troubleshooting & Workload Management | 10% | - Bottleneck identification and resolution - Performance monitoring and logging - Cluster resource allocation |
| Topic 2: Data Pipeline Optimization | 20% | - Reduce latency and improve throughput - ETL/ELT workflow optimization - Design scalable and efficient data pipelines |
| Topic 3: Data Processing Frameworks | 22% | - Batch and real-time processing optimization - Hadoop ecosystem tuning - Apache Spark optimization |
| Topic 4: Storage & Data Management | 18% | - Data formats, partitioning, and indexing - Distributed storage system optimization - SQL/NoSQL performance tuning |
| Topic 5: Governance, Security & Compliance | 15% | - Security and privacy protection - Data governance policies - Regulatory compliance |
| Topic 6: Streaming & IoT Data Processing | 15% | - Pravega, Kafka, NiFi usage - Real-time ingestion frameworks - Stream processing optimization |
1. Which IoT data processing tool enables businesses to make real-time decisions to capitalize on the Analytics of Things (AoT)?
A) Nautilus
B) Apache NiFi
C) Pravega
D) Apache Kafka
2. In the ELT process, data is transformed after being loaded into the target system.
Which tools can be used for ELT? (Select all that apply)
A) Talend
B) Apache Hadoop
C) Microsoft SSIS
D) Apache Spark
E) Amazon Redshift
3. Which Cassandra data type represents a collection of key-value pairs, and is represented in curly brackets ({, }) and colon (:)?
A) Set
B) List
C) Map
D) UUID
4. An organization plans to establish a data governance process for a data lake.
What is the correct sequence of steps required to implement the process?
A) 1. Define the roles and responsibilities of actors within the data governance process
2. Operationalize the data governance process and assist the deployment team
3. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment
4. Understand the current and future states of data governance and identify remaining gaps
B) 1. Define the roles and responsibilities of actors within the data governance process
2. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment
3. Operationalize the data governance process and assist the deployment team
4. Understand the current and future states of data governance and identify remaining gaps
C) 1. Define the roles and responsibilities of actors within the data governance process
2. Operationalize the data governance process and assist the deployment team
3. Understand the current and future states of data governance and identify remaining gaps
4. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment
D) 1. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment
2. Define the roles and responsibilities of actors within the data governance process
3. Operationalize the data governance process and assist the deployment team
4. Understand the current and future states of data governance and identify remaining gaps
5. Which Python library provides the foundation for SciPy?
A) NumPy
B) Pandas
C) NLTK
D) scikit-learn
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A,C,D | Question # 3 Answer: C | Question # 4 Answer: C | Question # 5 Answer: A |
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