MongoDB Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

MongoDB Interview Questions

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Can journaling feature be used to perform safe hot backups?

Will there be journal replay programs in case of incomplete entries (if there is a failure in the middle of one)?

What is a ‘namespace’?

Are null values allowed?

How does sharding work with replication?

When using replication, can some members use journaling and others not?

If a ‘movechunk’ fails, is it necessary to cleanup the partially moved docs?

What is a master or primary?

When an object attribute is removed, is it deleted from the store?

How do I do transactions/locking?

Should you start out with sharded or with a non-sharded mongodb environment?

What happens when a shard is down or slow when querying?

Does aws have mongodb?

Is dynamodb a mongodb?

Is mongodb big data?

Un-Answered Questions { MongoDB }

Where is my mongodb database?

What is metadata in mongodb?

Why is mongodb so fast?

If you remove an object attribute, is it deleted from the database?

Explain sharding in mongodb?

Which all languages can be used with mongodb?

Will there be journal replay programs in case of incomplete entries (if there is a failure in the middle of one)?

How much does mongodb cost?

what is objecld composed of?

Is mongodb normalized?

Does mongodb store data in memory?

What is the difference between mongodb and couchdb?

Is mongodb support replication?

Define mongodb SUM?

How does journaling work in mongodb?

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