How should they architect their solution?

2025-09-29
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In: SAP-C01
With: 1 Comment

A web company is looking to implement an external payment service into their highly available application deployed in a VPC Their application EC2 instances are behind a public facing ELB.Auto scaling is used to add additional instances as traffic increases under normal load the application runs 2 instances in the AutoScaling group but at peak it can scale 3x in size.The application instances need to communicate with the payment service over the Internet which requires whitelisting of all public IP addresses used to communicate with it.A maximum of 4 whitelisting IP addresses are allowed at a time and can be added through anAPI.How should they architect their solution?Read More →

What should a solutions architect do to reduce the impact on the database with the LEAST amount of effort?

2025-09-29
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In: SAA-C02
With: 1 Comment

A company’s web application uses an Amazon RDS PostgreSQL DB instance to store its application data.During the financial closing period at the start of every month, Accountants run large queries that impact the database’s performance due to high usage.The company wants to minimize the impact that the reporting activity has on the web application.What should a solutions architect do to reduce the impact on the database with the LEAST amount of effort?Read More →

Which design would you choose to meet these requirements?

2025-09-29
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In: SAP-C01
With: 1 Comment

An International company has deployed a multi-tier web application that relies on DynamoDB in a single region.For regulatory reasons they need disaster recovery capability in a separate region with a Recovery Time Objective of 2 hours and a Recovery Point Objective of 24 hours.They should synchronize their data on a regular basis and be able to provision me web application rapidly using CloudFormation.The objective is to minimize changes to the existing web application, control the throughput of DynamoDB used for the synchronization of data and synchronize only the modified elements.Which design would you choose to meet these requirements?Read More →

Which are the best approaches to meet these requirements?

2025-09-29
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In: SAP-C01
With: 1 Comment

Your company is getting ready to do a major public announcement of a social media site on AWS.The website is running on EC2 instances deployed across multiple Availability Zones with a Multi-AZ RDS MySQL Extra Large DB Instance.The site performs a high number of small reads and writes per second and relies on an eventual consistency model.After comprehensive tests you discover that there is read contention on RDS MySQL.Which are the best approaches to meet these requirements? (Choose two.)Read More →