Considering the advancement of technology CouchDB is consider as one of the best breeds of the database as it has schema-free document model that fits for all application. Couch Replication is the main reason why user prefers CouchDB. This stores the organized data into database and documents. The system reserves every name that starts with an underscore and then use the same to store its metadata. Here the actual data is mixed with it making everything simple and uniform for use.
Here are a few CouchDB Interview Questions with answers that might help you during the preparation process: