Which database system is primarily known as an in-memory key-value data store?

Options

  • A. PostgreSQL
  • B. Redis
  • C. Microsoft Access
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. Redis

Detailed Explanation

  • Redis: An in-memory data structure store commonly used as a key-value database, cache, and message broker.
  • It supports data structures such as strings, lists, sets, and hashes.