50 TOP Apache Cassandra Interview Questions and Answers freshers experienced PDF

1. How many types of NoSQL databases are there? There are four types of NoSQL databases, namely: Document Stores (MongoDB, Couchbase) Key-Value Stores (Redis, Volgemort) Column Stores (Cassandra) Graph Stores (Neo4j, Giraph) 2. What do you understand by Commit log in Cassandra? Commit log is a crash-recovery mechanism in Cassandra. Every write operation is written…