Microsoft Azure Data Fundamentals — Question 121

A retail point of sale (POS) system is an example of which type of solution?

Answer options

• A. a data warehouse
• B. online analytical processing (OLAP)
• C. extract, transform, and load (ETL)
• D. online transaction processing (OLTP)

Correct answer: D

Explanation

The correct answer is D, online transaction processing (OLTP), as a retail POS system handles real-time transactions and is designed for high-volume transaction processing. Options A (data warehouse) and B (OLAP) are more focused on data analysis and reporting, while C (ETL) refers to the process of data integration rather than transaction processing.