You are deploying a PHP App Engine Standard service with SQL as the backend. You want to minimize the number of queries to the database.
What should you do?
A . Set the memcache service level to dedicated. Create a key from the hash of the query, and return database values from memcache before issuing a query to Cloud SQ
C . Set the memcache service level to dedicated. Create a cron task that runs every minute to populate the cache with keys containing query results.
D . Set the memcache service level to shared. Create a cron task that runs every minute to save all expected queries to a key called “cached-queries”.
E . Set the memcache service level to shared. Create a key called “cached-queries”, and return database values from the key before using a query to Cloud SQ
Answer: A
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