MongoDB Quiz

MongoDB is primarily classified as:

• Relational Database

• Document-Oriented Database

• Graph Database

• Columnar Database

The default port for MongoDB is:

• 1433

• 1521

• 27017

• 3306

In MongoDB, a collection is equivalent to which in relational databases?

• Row

• Column

• Table

• Index

Which of the following formats does MongoDB use to store data internally?

• JSON

• BSON

• XML

• CSV

The _id field in MongoDB:

• Is optional

• Must be unique per collection

• Can be changed anytime

• Is only used in indexes

Which command lists all available databases in MongoDB shell?

• show dbs

• db.show()

• show collections

• list databases

Which method inserts multiple documents in MongoDB?

• insert()

• insertOne()

• insertMany()

• addDocuments()

The default storage engine in MongoDB 3.2+ is:

• InnoDB

• WiredTiger

• MMAPv1

• RocksDB

Which operator is used to match values greater than a specified value?

• $lt

• $lte

• $gt

• $eq

Which MongoDB feature allows horizontal scaling by distributing data?

• Replication

• Indexing

• Aggregation

• Sharding