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EMC D-DS-OP-23 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Engineering Principles | - Data pipeline design and orchestration - Data storage architectures (data lakes, warehouses) - ETL/ELT processes |
| Optimization and Performance | - Optimization techniques for data workflows - Model performance tuning |
| Data Governance and Operations | - Security and compliance considerations - Data quality management - Lifecycle management of data solutions |
| Data Science Foundations | - Data exploration and preprocessing - Feature engineering fundamentals - Statistical analysis and probability concepts |
| Machine Learning and Modeling | - Supervised and unsupervised learning - Model evaluation and validation - Algorithm selection and tuning |
EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:
What is characteristic of HBase?
- A. Data warehouse infrastructure that can compile SQL queries and run the jobs in cluster
- B. Tool that performs real-time write operations on large datasets using Key/Value pairs
- C. High-level language platform for analyzing and querying large data sets stored in HDFS
- D. Tool that combines SQL, streaming, and complex analytics
Correct Answer: B 🗳️
Which layer in the EdgeX Foundry architecture provides a REST API that enables clients to establish new requests?
- A. Support Services
- B. Application/Export Services
- C. Device Services
- D. Core Services
Correct Answer: B 🗳️
What is a common application of IoT tools?
- A. Analyzing static datasets
- B. Monitoring real-time sensor data
- C. Processing large-scale batch data
- D. Managing relational databases
Correct Answer: B 🗳️
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. Apache Hadoop
- B. Talend
- C. Amazon Redshift
- D. Microsoft SSIS
- E. Apache Spark
Correct Answer: B,D,E 🗳️
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 focuses mainly on IT practices.
MDM creates the rules and decisions for operational data processes. - C. 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. - D. Data governance implementation involves people, policies, rules, and metrics.
MDM is done automatically with no interference.
Correct Answer: C 🗳️
