Answer-first summary for fast verification
Answer: Create an RDS Proxy associated with the database; configure the app to connect to the proxy.
RDS Proxy reduces failover time by pooling connections and managing failover transparently, hiding the DNS change and reducing downtime from minutes to seconds. MariaDB doesn't have multi-writer like Aurora. Cache helps read but not for maintenance failover.
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An RDS for MariaDB Multi-AZ database causes several minutes of downtime during planned maintenance failovers. How can the SysOps administrator reduce downtime?
A
Create an RDS for MariaDB DB cluster with multiple writer instances; configure the app to retry on another primary node.
B
Configure RDS maintenance window settings to pool connections during failover.
C
Configure ElastiCache write-through cache; connect the app to the cache.
D
Create an RDS Proxy associated with the database; configure the app to connect to the proxy.
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