DELL EMC D-DS-OP-23 Dell Data Engineering Optimize Online Training
DELL EMC D-DS-OP-23 Online Training
The questions for D-DS-OP-23 were last updated at Jan 30,2025.
- Exam Code: D-DS-OP-23
- Exam Name: Dell Data Engineering Optimize
- Certification Provider: DELL EMC
- Latest update: Jan 30,2025
What ethical principle emphasizes that collected data should be used for its original intended purpose?
- A . Data minimization
- B . Purpose limitation
- C . Transparency
- D . Accountability
Which Sqoop validation type checks the row counts between the source and target databases, and tries to ensure that the counts match?
- A . ValidationThreshold
- B . Eval
- C . ValidationFailureHandler
- D . Validator
Which IoT data processing tool uses a storage abstraction called Stream for continuous and unbounded data?
- A . Apache NiFi
- B . Apache Storm
- C . Pravega
- D . EdgeX Foundry
You are designing a database for an e-commerce data warehouse. The data is normalized in 1NF format and will be used to create data marts for different departments inside the organization.
Which schema type should be used for this requirement?
- A . Star
- B . Columnar
- C . Highly Normalized
- D . Graph
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
Which of the following are components of the Apache Spark architecture? (Select all that apply)
- A . Spark Core
- B . Spark SQL
- C . Spark HBase
- D . Spark Streaming
- E . Spark Cassandra
What are three programming languages supported by Apache Spark?
- A . Python, R, and Scala
- B . PL/SQL, R, and Scala
- C . Python, R, and C++
- D . Python, C, and Scala
What is the primary storage system used by the Hadoop ecosystem?
- A . MongoDB
- B . HDFS
- C . Amazon S3
- D . Cassandra
Which of the following are components of the ETL process? (Select all that apply)
- A . Extraction
- B . Transmission
- C . Loading
- D . Transformation
Visualization
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
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