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Answer: Deploy read replicas
The correct answer is **D** because read replicas are designed to distribute read traffic, thereby alleviating the load on the primary database. Cloud SQL supports the replication of a master instance to one or more read replicas, which are near real-time copies of the master. - **Option A** is incorrect as high availability is intended for failover scenarios, not for performance scaling. - **Option B** is not recommended for scaling purposes due to the maintenance and network requirements involved in managing an external replica. - **Option C** is unsuitable as backups are primarily for disaster recovery, not for scaling read operations.
Author: LeetQuiz Editorial Team
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An application utilizing Cloud SQL for accessing infrequently changing data is expected to experience significant growth. What strategy can be employed to enhance capacity for additional read-only clients?
A
Implement high availability on the primary node
B
Set up an external replica within the customer's own data center
C
Utilize backups to enable restoration in the event of an outage
D
Deploy read replicas
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