Database2

Which of the following is NOT a property described by the CAP theorem?

• Consistency

• Availability

• Partition Tolerance

• Durability

Which NoSQL data model stores data in JSON-like documents?

• Key-value

• Columnar

• Document

• Graph

Which NoSQL data model is best suited for storing relationships between entities?

• Key-value

• Columnar

• Document

• Graph

Which NoSQL database is often used for caching and session management?

• MongoDB

• Cassandra

• Redis

• Neo4j

In MongoDB, what is the equivalent of a table in a relational database?

• Document

• Collection

• Field

• Index

Which command is used to retrieve all documents from a collection in MongoDB?

• insert()

• update()

• find()

• delete()

Which MongoDB operator is used to specify 'greater than'?

• $eq

• $ne

• $gt

• $lt

Which MongoDB operator is used to combine multiple query conditions with a logical AND?

• $or

• $nor

• $not

• $and

What is the purpose of the $project stage in the MongoDB aggregation framework?

• To filter documents

• To group documents

• To reshape documents

• To sort documents

Which of the following is NOT a type of index in MongoDB?

• Single field

• Compound

• Relational

• Text