A system API EmployeeSAPI is used to fetch employee's data from an underlying SQL database.

Question

A system API EmployeeSAPI is used to fetch employee's data from an underlying SQL database.
The architect must design a caching strategy to query the database only when there is an update to the employees stable or else return a cached response in order to minimize the number of redundant transactions being handled by the database.
What must the architect do to achieve the caching objective?

Accepted Answer

A. Use an On Table Row on employees table and call invalidate cacheUse an object store caching strategy and expiration interval to empty

Answer

B. Use a Scheduler with a fixed frequency every hour triggering an invalidate cache flowUse an object store caching strategy and expiration interval to empty

Answer

C. Use a Scheduler with a fixed frequency every hour triggering an invalidate cache flowUse an object store caching strategy and set expiration interval to 1-hour

Answer

D. Use an on table rule on employees table call invalidate cache and said new employees data to cacheUse an object store caching strategy and set expiration interval to 1-hour

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