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
61. What does "ACID" stand for in the context of database consistency?
62. Which consistency model emphasizes strict data consistency and may lead to increased latency?
63. In the CAP theorem, what does the "C" stand for?
64. Which consistency model allows for temporary inconsistencies and resolves them over time?
65. What is the primary trade-off addressed by the CAP theorem regarding consistency in distributed systems?
66. Which NoSQL database consistency model aims to achieve the best possible consistency within the constraints of a distributed system?
67. Which consistency model ensures that once a write operation is acknowledged, all subsequent read operations will return the updated value?
68. Which consistency model is suitable for applications where low-latency reads are more important than strong data consistency?
69. In a distributed NoSQL system, which consistency model offers the lowest consistency guarantees but the highest availability and partition tolerance?
70. What does the "I" stand for in the "BASE" consistency model?