140+ NoSQL MCQ With Online Practice Test

NoSQL, short for "Not Only SQL," represents a family of database management systems designed for flexible and scalable data storage. Unlike traditional relational databases, NoSQL databases employ various data models like document, key-value, graph, and column-family, enabling them to handle diverse data types and structures. NoSQL databases are well-suited for applications requiring high data velocity and volume, such as web and mobile apps, IoT devices, and big data analytics. They offer horizontal scalability, strong performance, and support for distributed, non-tabular data storage, making them a valuable choice for modern, dynamic data management needs.
Practice Test

31. What is the primary motivation for NoSQL database scalability?

Answer: Performance

32. Which type of scalability involves adding more nodes to an existing system to handle increased load?

Answer: Horizontal Scaling

33. What is sharding in the context of NoSQL databases?

Answer: Data partitioning

34. In CAP theorem, which property is closely related to scalability?

Answer: Availability

35. Which NoSQL database model is typically associated with excellent horizontal scalability?

Answer: Graph Databases

36. What is the main advantage of horizontal scalability in NoSQL databases?

Answer: Increased capacity

37. Which scalability type allows a system to handle more data by adding resources to a single machine?

Answer: Vertical Scaling

38. What does "read scaling" refer to in NoSQL?

Answer: Scaling reads

39. When dealing with NoSQL database scaling, what is data partitioning also known as?

Answer: Sharding

40. Which factor typically presents a challenge to achieving scalability in NoSQL databases?

Answer: Data structure
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