Topic 1 Question 633
A company manages an application that stores data on an Amazon RDS for PostgreSQL Multi-AZ DB instance. Increases in traffic are causing performance problems. The company determines that database queries are the primary reason for the slow performance.
What should a solutions architect do to improve the application's performance?
Serve read traffic from the Multi-AZ standby replica.
Configure the DB instance to use Transfer Acceleration.
Create a read replica from the source DB instance. Serve read traffic from the read replica.
Use Amazon Kinesis Data Firehose between the application and Amazon RDS to increase the concurrency of database requests.
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- 正解だと思う選択肢: C
A Multi-AZ DB instance Creates a primary DB instance with one standby DB instance in a different Availability Zone. Using a Multi-AZ DB instance provides high availability, but the standby DB instance doesn't support connections for read workloads. Therefore you will need to create a read replica from the source DB instance then serve read traffic from the read replica.
👍 2TariqKipkemei2023/11/30 - 正解だと思う選択肢: C
After you create a read replica from a source DB instance, the source becomes the primary DB instance. When you make updates to the primary DB instance, Amazon RDS copies them asynchronously to the read replica. https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_ReadRepl.html
👍 1warp2023/11/06 - 正解だと思う選択肢: C
you can’t read from the standby DB instance. If applications require more read capacity, you should create or add additional read replicas.
👍 1potomac2023/11/06
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