What is the key issue associated with the object storage type that the CCSP has to be aware of?

The key issue associated with object storage that the CCSP must be aware of is data consistency, which is indeed achieved only after change propagation to all replica instances has taken place. In object storage architectures, data is often distributed across multiple locations and accessible through a flat address structure. When a change occurs—such as an update or deletion of an object—ensuring that all replicas reflect that change is critical to maintaining data integrity and consistency. The eventual consistency model, commonly used in distributed object storage, allows some flexibility by permitting temporary discrepancies between replicas. However, the fundamental need remains that, for data to be considered consistent, all copies must eventually align after propagation.

Understanding this concept is crucial for cloud security professionals as it directly affects data availability and reliability, influencing how organizations manage and sync data across different environments. It also impacts decisions related to data replication strategies, backup processes, and how to handle potential inconsistencies during periods of high availability requirements.