Which type of APIs are these?

A company is in the process of utilizing exposed cloud computing APIs in order to access database, storage, and e-commerce capabilities for their cloud applications.

Which type of APIs are these?
A . Infrastructure
B . Service
C . Application
D . Configuration.

Answer: B

Explanation:

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Service APIs provide an interface into a specific capability provided by a service explicitly created to enable that capability. Some examples are database, messaging, web portal, e-commerce, and storage.