Which statement describes Hybrid Cache behavior?

Which statement describes Hybrid Cache behavior?

• A. Cache data is replicated on each node
• B. Cache data is evenly distributed across all Confluence nodes in a cluster
• C. Cache data is replicated on each node and invalidated remotely by other nodes
• D. Cache data is stored in a central repository

Answer: (C)

Hybrid caching combines fast local access with mechanisms to keep data fresh across nodes. In this approach each node stores its own copy of cache entries so reads are fast because the data is local. When underlying data changes, other nodes remotely invalidate their cached copies, ensuring they don’t serve stale information and will fetch fresh data when needed. This blend—having replicated data on every node for quick access, paired with remote invalidations to maintain consistency—fits the described behavior precisely. If cache were only replicated without invalidation, stale data could be served; if it were only evenly distributed, not all nodes would hold copies for fast reads; and a central repository would create a bottleneck and a single point of failure.

Hybrid caching combines fast local access with mechanisms to keep data fresh across nodes. In this approach each node stores its own copy of cache entries so reads are fast because the data is local. When underlying data changes, other nodes remotely invalidate their cached copies, ensuring they don’t serve stale information and will fetch fresh data when needed. This blend—having replicated data on every node for quick access, paired with remote invalidations to maintain consistency—fits the described behavior precisely. If cache were only replicated without invalidation, stale data could be served; if it were only evenly distributed, not all nodes would hold copies for fast reads; and a central repository would create a bottleneck and a single point of failure.