CAP theorem states that a distributed system cannotsimultaneously guarantee:Question 13Answera. Consistency, Atomicity, Partition toleranceb.Consistency, Atomicity, Availabilityc. Consistency, Availability, Reliabilityd.Consistency, Accessibility, Partition tolerance

The correct answer is:

c. Consistency, Availability, Partition tolerance

Explanation:

The CAP theorem, also known as Brewer's theorem, states that it is impossible for a distributed data store to simultaneously provide more than two out of the following three guarantees:

1. Consistency: Every read receives the most recent write or an error.
2. Availability: Every request receives a (non-error) response, without the guarantee that it contains the most recent write.
3. Partition tolerance: The system continues to operate despite an arbitrary number of messages being dropped (or delayed) by the network between nodes.

In other words, a distributed system can satisfy any two of Consistency, Availability, and Partition tolerance at the same time, but not all three.