Practice Test 4 | AWS Certified Solutions Architect Associate | SAA-C03 | Dumps | Mock Test
You are working on creating a mobile application for your company. This application is being built to work with DynamoDB as the back end and JavaScript as the front end. During application usage, you notice that there are spikes in the application especially in the DynamoDB write throughput. Which one of the below options provides the most cost-effective and scalable architecture for this application?
A. Autoscale DynamoDB to meet the requirements.
B. Increase write capacity of DynamoDB tables to meet the peak loads.
C. Create a service that pulls SQS messages and writes these to DynamoDB to handle suddenspikes in DynamoDB.
D. Launch DynamoDB in Multi-AZ configuration with a global index to balance writes.
Explanation:
Answer – C
When looking for scalability, SQS is the best option. DynamoDB is scalable, but since a cost-effective solution is required, SQS messaging can assist in managing the above situation.
Amazon Simple Queue Service (SQS) is a fully-managed message queuing service for reliably communicating among distributed software components and microservices – at any scale. Building applications from individual components that each perform a discrete function improves scalability and reliability, and is best practice design for modern applications. SQS makes it simple and cost-effective to decouple and coordinate the components of a cloud application. Using SQS, you can send, store, and receive messages between software components at any volume, without losing messages or requiring other services to be always available.
- For more information on SQS, please refer to the below URL:
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