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Q35 Single choice

An API implementation is being designed that must invoke an Order API which is known to repeatedly experience downtime. For this reason a fallback API is to be called when the Order API is unavailable.

What approach to designing invocation of the fallback API provides the best resilience?

A
Redirect client requests through an HTTP 303 temporary redirect status code to the fallback API whenever the Order API is unavailable
B
Set an option in the HTTP Requester component that invokes the order API to instead invoke a fallback API whenever an HTTP 4XX or 5XX response status code is received from Order API
C
Create a separate entry for the order API in API manager and then invoke this API as a fallback API if the primary Order API is unavailable
D
Search Anypoint Exchange for a suitable existing fallback API and them implement invocations to their fallback API in addition to the Order API

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