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Question 87 - SAA-C03 discussion

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A company hosts an application on AWS Lambda functions mat are invoked by an Amazon API Gateway API The Lambda functions save customer data to an Amazon Aurora MySQL database Whenever the company upgrades the database, the Lambda functions fail to establish database connections until the upgrade is complete The result is that customer data Is not recorded for some of the event A solutions architect needs to design a solution that stores customer data that is created during database upgrades Which solution will meet these requirements?

A.
Provision an Amazon RDS proxy to sit between the Lambda functions and the database Configure the Lambda functions to connect to the RDS proxy
Answers
A.
Provision an Amazon RDS proxy to sit between the Lambda functions and the database Configure the Lambda functions to connect to the RDS proxy
B.
Increase the run time of me Lambda functions to the maximum Create a retry mechanism in the code that stores the customer data in the database
Answers
B.
Increase the run time of me Lambda functions to the maximum Create a retry mechanism in the code that stores the customer data in the database
C.
Persist the customer data to Lambda local storage. Configure new Lambda functions to scan the local storage to save the customer data to the database.
Answers
C.
Persist the customer data to Lambda local storage. Configure new Lambda functions to scan the local storage to save the customer data to the database.
D.
Store the customer data m an Amazon Simple Queue Service (Amazon SOS) FIFO queue Create a new Lambda function that polls the queue and stores the customer data in the database
Answers
D.
Store the customer data m an Amazon Simple Queue Service (Amazon SOS) FIFO queue Create a new Lambda function that polls the queue and stores the customer data in the database
Suggested answer: D

Explanation:

https://www.learnaws.org/2020/12/13/aws-rds-proxy-deep-dive/

RDS proxy can improve application availability in such a situation by waiting for the new database instance to be functional and maintaining any requests received from the application during this time. The end result is that the application is more resilient to issues with the underlying database.

This will enable solution to hold data till the time DB comes back to normal. RDS proxy is to optimally utilize the connection between Lambda and DB. Lambda can open multiple connection concurrently which can be taxing on DB compute resources, hence RDS proxy was introduced to manage and leverage these connections efficiently.

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asked 16/09/2024
Richard Banks
44 questions
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