DELL EMC D-DS-OP-23 Practice Exams
Last updated on Oct 21,2026- Exam Code: D-DS-OP-23
- Exam Name: Dell Data Engineering Optimize
- Certification Provider: DELL EMC
- Latest update: Oct 21,2026
An organization has decided to structure their governance model to allow either a single individual or a team to control and maintain the master data.
Which governance model is being implemented?
- A . Distributed
- B . Centralized
- C . Federated
- D . Hybrid
What is a typical task of a data engineer during a data analytics project?
- A . Transforming data into a format that can be easily analyzed
- B . Planning and performing A/B testing
- C . Exploring and examining data to find hidden patterns
- D . Presenting financial benefits to executive stakeholders
What is a typical task of a data engineer during a data analytics project?
- A . Transforming data into a format that can be easily analyzed
- B . Planning and performing A/B testing
- C . Exploring and examining data to find hidden patterns
- D . Presenting financial benefits to executive stakeholders
Which of the following best describes the purpose of database normalization in a relational database schema?
- A . Reducing data redundancy
- B . Increasing data security
- C . Improving query performance
- D . Enforcing referential integrity
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 . Reduce misuse of data and facilitate its transparency
- D . Decrease trust between humans and machines
Which NoSQL database type is best suited for handling graph-based data structures and complex relationships?
- A . Document store
- B . Key-value store
- C . Column-family store
- D . Graph database
What is the primary focus of the EdgeX Foundry architecture?
- A . Cloud computing
- B . Edge computing and IoT devices
- C . Big data analytics
- D . Quantum computing
Which phase of a data analytics project involves data engineers extracting, transforming, and loading data from various sources into a centralized repository?
- A . Data exploration
- B . Data visualization
- C . Data modeling
- D . Data ingestion
Which phase of a data analytics project involves data engineers extracting, transforming, and loading data from various sources into a centralized repository?
- A . Data exploration
- B . Data visualization
- C . Data modeling
- D . Data ingestion
What ordered set of terms refers to the process in which data is sourced from a relational database, enriched and merged with other datasets, then stored in a data lake?
- A . Atomicity, Consistency, and Isolation
- B . Isolation, Atomicity, and Consistency
- C . Extract, Transform, and Load
- D . Extract, Load, and Transform