Which cache type is associated with the acronym replicate-via-copy?

Which cache type is associated with the acronym replicate-via-copy?

• A. Local Cache
• B. Distributed Cache
• C. Hybrid Cache
• D. None of the Above

Answer: (B)

Replicating cache entries across multiple nodes is a hallmark of distributed caching. In this approach, when a value is written to the cache, copies of that value are propagated to all nodes in the cluster (or to a defined set of nodes), so every node holds a complete or near-complete copy of the data. This enables reads to be served locally from any node, increases fault tolerance, and improves availability since other nodes can continue serving requests even if one node goes down. Local caches, by contrast, only store data on a single node, so there’s no automatic replication across the cluster. Hybrid caches combine local and distributed strategies, but the specific pattern described by replicate-via-copy—sharing copies across nodes to ensure broad accessibility and resilience—belongs to distributed caching. Hence, the correct association is with distributed caching.

Replicating cache entries across multiple nodes is a hallmark of distributed caching. In this approach, when a value is written to the cache, copies of that value are propagated to all nodes in the cluster (or to a defined set of nodes), so every node holds a complete or near-complete copy of the data. This enables reads to be served locally from any node, increases fault tolerance, and improves availability since other nodes can continue serving requests even if one node goes down.

Local caches, by contrast, only store data on a single node, so there’s no automatic replication across the cluster. Hybrid caches combine local and distributed strategies, but the specific pattern described by replicate-via-copy—sharing copies across nodes to ensure broad accessibility and resilience—belongs to distributed caching. Hence, the correct association is with distributed caching.