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

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

1. Which NoSQL database type is best suited for handling graph-based data structures and complex relationships?

A) Column-family store
B) Document store
C) Graph database
D) Key-value store

2. Which tools are used for security considerations in the Hadoop ecosystem? (Select all that apply)

A) Apache Atlas
B) Apache Ranger
C) Apache Knox
D) Apache Flink
E) Apache Sentry

3. 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) Installing, configuring, testing, and maintaining operating systems, application software, and system management tools
C) Ensuring the successful initiation, planning, design, execution, monitoring, controlling, and closure of the project
D) Designing and integrating infrastructure, analyzing algorithms, modifying source code, and writing system instructions

4. 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

5. Which layer in the EdgeX Foundry architecture provides a REST API that enables clients to establish new requests?

A) Core Services
B) Application/Export Services
C) Device Services
D) Support Services

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