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Amazon SAP-C02 Exam - Topic 6 Question 4 Discussion

A solutions architect has developed a web application that uses an Amazon API Gateway Regional endpoint and an AWS Lambda function. The consumers of the web application are all close to the AWS Region where the application will be deployed. The Lambda function only queries an Amazon Aurora MySQL database. The solutions architect has configured the database to have three read replicas.During testing, the application does not meet performance requirements. Under high load, the application opens a large number of database connections. The solutions architect must improve the application's performance.Which actions should the solutions architect take to meet these requirements? (Choose two.)
B) Use RDS Proxy to set up a connection pool to the reader endpoint of the Aurora database. and D) Move the code for opening the database connection in the Lambda function outside of the event handler.
A) Use the cluster endpoint of the Aurora database.
C) Use the Lambda Provisioned Concurrency feature.
E) Change the API Gateway endpoint to an edge-optimized endpoint.

Amazon SAP-C02 Exam - Topic 6 Question 4 Discussion

Actual exam question for Amazon's SAP-C02 exam
Question #: 4
Topic #: 6
[All SAP-C02 Questions]

A solutions architect has developed a web application that uses an Amazon API Gateway Regional endpoint and an AWS Lambda function. The consumers of the web application are all close to the AWS Region where the application will be deployed. The Lambda function only queries an Amazon Aurora MySQL database. The solutions architect has configured the database to have three read replicas.

During testing, the application does not meet performance requirements. Under high load, the application opens a large number of database connections. The solutions architect must improve the application's performance.

Which actions should the solutions architect take to meet these requirements? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: B, D

Connect to RDS outside of Lambda handler method to improve performance https://awstut.com/en/2022/04/30/connect-to-rds-outside-of-lambda-handler-method-to-improve-performance-en/

Using RDS Proxy, you can handle unpredictable surges in database traffic. Otherwise, these surges might cause issues due to oversubscribing connections or creating new connections at a fast rate. RDS Proxy establishes a database connection pool and reuses connections in this pool. This approach avoids the memory and CPU overhead of opening a new database connection each time. To protect the database against oversubscription, you can control the number of database connections that are created. https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/rds-proxy.html


by Lenna at Dec 24, 2022, 05:30 PM

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Earnestine
10 months ago
RDS Proxy sounds like a game changer for this scenario!
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Kate
10 months ago
Wait, why would you change the API Gateway endpoint? Seems unnecessary.
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Evangelina
10 months ago
A is a must! Using the cluster endpoint is key.
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Ashley
11 months ago
I think D could help too, but not sure if it's enough.
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Milly
11 months ago
Definitely A and B for better connection management.
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Helaine
11 months ago
I don't think changing the API Gateway to an edge-optimized endpoint will help with database connections, but I could be wrong.
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Crista
11 months ago
I practiced a similar question where moving the database connection outside the event handler improved performance. That might be a good option too.
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Dino
11 months ago
I'm a bit unsure about RDS Proxy. I think it helps with connection pooling, but I can't recall if it's necessary for this scenario.
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Adelina
11 months ago
I remember discussing the importance of using the cluster endpoint for Aurora to balance the load across replicas. That seems like a solid choice here.
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Tasia
11 months ago
Okay, I think I've got this. Based on the description, Ted was likely depicting security use cases to identify potential attack scenarios. That seems like the most relevant activity here.
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Slyvia
11 months ago
This question seems straightforward, but I want to make sure I understand the key concepts around checkpoint/restart procedures before selecting an answer.
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Dion
11 months ago
Ah, I remember learning about SSL profiles in Citrix - that's got to be the answer here.
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Doyle
11 months ago
I'm a little confused on how to approach this. Do I need to consider the dual uplinks for the hubs separately, or just the total number of connections? I want to make sure I understand the question fully before answering.
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