Correct Answer:
B. NoSQL database.
Explanation:
The correct answer is NoSQL database. because MongoDB utilizes a non-relational, document-oriented model to manage structural data feeds efficiently.
- Step 1 (Document Store Model): MongoDB avoids traditional tables and rows. Instead, it records datasets as BSON documents (binary JSON format), allowing schemas to vary flexibly between items.
- Step 2 (Scalability Features): As a NoSQL system, it is architected to scale out horizontally across distributed clusters, making it ideal for handling unstructured big data and high-velocity workloads.
- Incorrect Options:
- Relational database is incorrect because relational systems rely on rigid schemas, structured tables, primary keys, and foreign keys.
- SQL database is incorrect because SQL databases are simply the query language foundation used to interact with structured relational systems.
- Flat-file database is incorrect because flat files store text records sequentially without structured indexing mechanisms or database management engine features.