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
Which encoding standard is used by Python 2 to store strings?
- A . ASCII
- B . Unicode
- C . Binary
- D . Static
Which Apache project focuses on managing and governing metadata for Hadoop ecosystems?
- A . Apache Atlas
- B . Apache Ranger
- C . Apache Hive
- D . Apache HBase
Which tool builds batch processing as a special case of stream data processing?
- A . Apache Hive
- B . Apache Flink
- C . Apache Spark
- D . Apache Oozie
Why is it important to control the capabilities of a workload during runtime in Kubernetes?
- A . Limit resource usage on a cluster
- B . Apply API authorization on a cluster
- C . Enable management of application secrets
- D . Support data exfiltration from a pod
Why is Python commonly used for building data pipelines?
- A . It only supports batch processing
- B . It has no libraries for data manipulation
- C . Its readability and extensive libraries
- D . It requires compilation for execution
In Python, which type of operator is often used in conditional statements to perform Boolean operations?
- A . Bitwise
- B . Assignment
- C . Arithmetic
- D . Logical
What is a difference between Data Governance and Master Data Management (MDM)?
- A . Data governance is an informal system of decision making.
MDM is a formal system of decision making. - B . Data governance implementation involves people, policies, rules, and metrics.
MDM is done automatically with no interference. - C . Data governance focuses mainly on IT practices.
MDM creates the rules and decisions for operational data processes. - D . Data Governance is a formalized system of decision making.
MDM is a comprehensive method to link all data elements to a common point of reference.
In order for a table to be normalized in 4NF, what two conditions must be met?
- A . Table is in BCNF
Multi-valued depen - B . Table is in 3NF
No dependencies exist - C . Table is in 3NF
No multi-valued dependencies exist - D . Table is in BCNF
No multi-valued dependencies exist
In order for a table to be normalized in 4NF, what two conditions must be met?
- A . Table is in BCNF
Multi-valued depen - B . Table is in 3NF
No dependencies exist - C . Table is in 3NF
No multi-valued dependencies exist - D . Table is in BCNF
No multi-valued dependencies exist
What is the primary purpose of Apache Kafka in a data processing architecture?
- A . Storing historical data
- B . Running machine learning algorithms
- C . Processing real-time data streams
- D . Running complex SQL queries