Google Cloud Digital Leader — Question 184

An organization needs to store daily transactional data such as customer records and purchase history. The data follows a consistent schema and is cross-referenced. Which type of service should the organization use?

Answer options

• A. Non-relational database
• B. Data warehouse
• C. Relational database
• D. Data lake

Correct answer: C

Explanation

The correct answer is C, Relational database, because it is designed to handle structured data with a consistent schema, making it ideal for transactional data that requires relationships between records. Options A (Non-relational database) and D (Data lake) are better suited for unstructured or semi-structured data, while B (Data warehouse) is optimized for analytical processing rather than daily transactional storage.