MongoDB

Yes, These files can be deleted once the operations are done because these files are made as backups during normal...

Because MongoDB uses memory mapped files so when you run a 32-bit build of MongoDB, the total storage size of...

MongoDB doesn’t use traditional locking or complex transaction with Rollback. MongoDB is designed to be light weighted, fast and predictable...

MongoDB’s cache is not configurable. Actually MongoDb uses all the free spaces on the system automatically by way of memory...

Yes. MongoDB databases have dynamic schema. There is no need to define the structure to create collections.

No. Instead of tables, MongoDB uses “Collections” to store data.

MongoDB client drivers supports all the popular programming languages so there is no issue of language, you can use any...

No. MongoDB can be run on small free space of RAM.

MongoDB is written and implemented in C++.

Yes, it be. Remove the attribute and then re-save() the object.