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You are deploying a PHP application on App Engine standard environment with a Cloud SQL backend. Your goal is to minimize the number of database queries. 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 SQL.
B
Set the memcache service level to dedicated. Create a cron task that runs every minute to populate the cache with keys containing query results.
C
Set the memcache service level to shared. Create a cron task that runs every minute to save all expected queries to a key called ג€cached_queriesג€.
D
Set the memcache service level to shared. Create a key called ג€cached_queriesג€, and return database values from the key before using a query to Cloud SQL.
