What are the levels of consistency in Cassandra?

There are four different consistency levels for Cassandra, which are:

1. Full consistency (ALL): All write requests must be completed on all replicas to ensure data consistency.
2. Quorum consensus: Write requests must be completed on at least a subset of replicas, read requests must be completed on at least a subset of replicas, ensuring data consistency.
3. LOCAL_ONE consistency level: Write requests only need to be completed on the local replica, read requests only need to be completed on the local replica, potentially leading to data inconsistency.
4. Local Quorum (LOCAL_QUORUM): Write requests must be completed on a local replica, while read requests can be completed on at least one replica, ensuring data consistency.