Which of the following does MongoDB use to provide High Availability and fault tolerance?
In a sharded cluster, from which node does one stop the balancer process before initiating backup?
Which features of relational database management systems were deliberately omitted in MongoDB and help us to obtain horizontal scalability? Check all that apply.
What does the following $slice query return using the following command? db.posts.find( {}, { comments: { $slice: [ -10, 5 ] } } )
