# CDC Data Consistency Guarantees

## Learning Cards

1. **[What is CDC Data Consistency?](/content/learn/change-data-capture/cdc-data-consistency/what-is-cdc-data-consistency/index.html)**  
   Easy 2 min read

2. **[Transactional Consistency and Ordering in CDC](/content/learn/change-data-capture/cdc-data-consistency/transactional-consistency-and-ordering-in-cdc/index.html)**  
   Medium 3 min read

3. **[Snapshot Plus Stream Consistency Pattern](/content/learn/change-data-capture/cdc-data-consistency/snapshot-plus-stream-consistency-pattern/index.html)**  
   Medium 3 min read

4. **[CDC Delivery Semantics: At Least Once vs Exactly Once](/content/learn/change-data-capture/cdc-data-consistency/cdc-delivery-semantics-at-least-once-vs-exactly-once/index.html)**  
   Hard 3 min read

5. **[CDC Failure Modes and Edge Cases](/content/learn/change-data-capture/cdc-data-consistency/cdc-failure-modes-and-edge-cases/index.html)**  
   Hard 4 min read