Question

In Cassandra, if the replication factor is 3, the coordinator will send replicas of the data item to the next _____ nodes on the ring.
1) 2 2) None 3) 3 4) 4

Answer 1

Apache Cassandra is a free and open-source, distributed, wide column store, NoSQL database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.

hence

the coordinator will send replicas of the data item to the next 3 nodes on the ring.

Answer 2

In Cassandra, if the replication factor is 3, the coordinator will send replicas of the data item to the next 2 nodes on the rings

Cassandra is an open source database management system used in handling large amount of structured data across various servers.

Node is the fundamental component where the information is stored.

In this system, replication strategy is followed wherein same information is stored in various nodes to avoid any loss of data.

When replication factor is R, then replicas are sent to R-1 nodes.

So for a replication factor of 3, the coordinator sends the replicas to next 2 nodes on the ring.