MongoDB Certified Developer Associate - C100DEV FREE EXAM DUMPS QUESTIONS & ANSWERS

A. $ cat /etc/mongod.conf B. $ cat /bin/mongod.conf C. $ cat /var/mongod.conf D. $ cat /home/mongod.conf

A. $out operator creates collections in the same database as the source collection. B. All indexes on an existing collection are rebuilt when $out overwrites the collection. C. $out operator will overwrite an existing collection if specified. D. $out operator will create a new empty collection or overwrite an existing collection if the pipeline raises an error. E. $out operator must be the last stage in a pipeline.

A. db.developers.find( { tech_stack: { $slice: [0, 3] } } ) B. db.developers.find( {}, { tech_stack: [0, 3] } ) C. db.developers.find( {}, { tech_stack: { $slice: [0, 3] } } ) D. db.developers.find( {}, { tech_stack: [0, 1, 2] } )

A. The admin database plays an important role in the authentication and authorization process. Certain actions performed by administrators also require access to this database. B. The admin database is used to store information about shards in shared MongoDB cluster. C. The admin database stores data describing the MongoDB server. For replica sets, it also stores information about the replication process.

A. db.movies.find( { languages: 5 } ) B. db.movies.find( { languages: { $gt: 5 } } ) C. db.movies.find( { languages: { $eq: 5 } } ) D. db.movies.find( { languages: { $size: 5 } } )

A. Documents consist of collections. B. Collections are tables of documents. C. Collections consists of one or many documents. D. Documents are organized into collections.

A. db.movies.find({ $expr: { $gt: ["imdb.votes", "year"] } } ) B. db.movies.find({ $expr: { $lt: ["$imdb.votes", "$year"] } } ) C. db.movies.find({ $expr: { $gt: ["$imdb.votes", "$year"] } } )

A. 3 B. 2 C. 1 D. 0

A. The local database plays an important role in the authentication and authorization process. Certain actions performed by administrators also require access to this database. B. The local database stores data describing the MongoDB server. For replica sets, it also stores information about the replication process. C. The local database is used to store information about shards in shared MongoDB cluster.

A. dropUser B. createRole C. createUser D. dropRole E. dropCollection F. grantRole