Design Microservices Architecture with Patterns and Principles - What Is CDC - Change Data Capture?

Change Data Capture (CDC) is a technology that tracks changes in a database, such as insert, update, and delete operations, and makes this data available for other systems to consume. It enables real-time data synchronization between databases and data processing systems by monitoring transaction logs and propagating changes. CDC is useful for data replication, maintaining data warehouse synchronization, and enabling real-time analytics, ensuring data accuracy and up-to-date information across systems.

What is the primary function of Change Data Capture (CDC)?

• To create new databases

• To encrypt database transactions

• To capture and propagate changes in database activities

• To delete old data from databases

What type of data activities does CDC capture?

• Insert, update, and delete activities

• Only delete activities

• Only insert activities

• Only update activities

How does CDC typically monitor changes in a database?

• By analyzing network traffic

• By scanning the entire database periodically

• By monitoring the transaction log continuously

• By checking user activity logs

What benefit does CDC provide to target systems?

• It eliminates the need for data backups

• It increases the size of the database

• It reduces the need for data encryption

• It allows them to stay up to date with source systems in real-time

Which of the following is NOT a scenario where CDC can be used?

• Replicating data between databases

• Creating static reports

• Maintaining data warehouse synchronization

• Enabling real-time data analytics