NoSQL Databases and Document Stores
This quiz covers the fundamental concepts, features, and usage of NoSQL databases and document stores, including their advantages, limitations, and real-world applications.
Questions
What is the primary distinction between NoSQL databases and traditional relational databases?
- NoSQL databases use a schema-less data model, while relational databases require a predefined schema.
- NoSQL databases are optimized for horizontal scaling, while relational databases are designed for vertical scaling.
- NoSQL databases are document-oriented, while relational databases are table-oriented.
- All of the above.
Which of the following is a popular document store NoSQL database?
- MongoDB
- Apache CouchDB
- Cassandra
- DynamoDB
What is the primary data structure used in document stores?
- Tables
- Rows
- Documents
- Columns
Which NoSQL database is known for its column-family data model?
- MongoDB
- Apache CouchDB
- Cassandra
- DynamoDB
What is the main advantage of using a NoSQL database over a relational database?
- NoSQL databases are faster.
- NoSQL databases are more scalable.
- NoSQL databases are easier to use.
- NoSQL databases are more flexible.
Which NoSQL database is designed for real-time applications and provides low latency?
- MongoDB
- Apache CouchDB
- Cassandra
- DynamoDB
What is the concept of denormalization in the context of NoSQL databases?
- Storing duplicate data across multiple documents to improve performance.
- Breaking down complex data structures into simpler ones.
- Creating multiple tables for different types of data.
- Using a hierarchical data model to organize data.
Which NoSQL database is known for its ability to handle large volumes of unstructured data?
- MongoDB
- Apache CouchDB
- Cassandra
- Elasticsearch
What is the primary data structure used in Cassandra?
- Tables
- Rows
- Documents
- Columns
Which NoSQL database is known for its automatic sharding and replication features?
- MongoDB
- Apache CouchDB
- Cassandra
- DynamoDB
What is the primary data structure used in MongoDB?
- Tables
- Rows
- Documents
- Columns
Which NoSQL database is known for its ACID (Atomicity, Consistency, Isolation, Durability) properties?
- MongoDB
- Apache CouchDB
- Cassandra
- DynamoDB
What is the primary data structure used in Apache CouchDB?
- Tables
- Rows
- Documents
- Columns
Which NoSQL database is known for its ability to handle large volumes of time-series data?
- MongoDB
- Apache CouchDB
- Cassandra
- InfluxDB
What is the concept of a 'collection' in MongoDB?
- A group of related documents.
- A table-like structure.
- A field within a document.
- A database within a MongoDB instance.