Which architecture should the Security Engineer use to meet these requirements?

2026-03-27
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In: SCS-C01
With: 2 Comments

The Security Engineer is managing a web application that processes highly sensitive personal information.The application runs on Amazon EC2.The application has strict compliance requirements, which instruct that all incoming traffic to the application is protected from common web exploits and that all outgoing traffic from the EC2 instances is restricted to specific whitelisted URLs.Which architecture should the Security Engineer use to meet these requirements?Read More →

Which solution will meet these requirements?

2026-03-27
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In: SAA-C03
With: 2 Comments

A company is testing an application that runs on an Amazon EC2 Linux instance.A single 500 GB Amazon Elastic Block Store (Amazon EBS) General Purpose SSO (gp2) volume is attached to the EC2 instance.The company will deploy the application on multiple EC2 instances in an Auto Scaling group.All instances require access to the data that is stored in the EBS volume.The company needs a highly available and resilient solution that does not introduce significant changes to the application’s code.Which solution will meet these requirements?Read More →

Which solution will meet these requirements?

2026-03-27
By:
In: SAP-C02
With: 2 Comments

A company has an application in the AWS Cloud.The application runs on a fleet of 20 Amazon EC2 instances.The EC2 instances are persistent and store data on multiple attached Amazon Elastic Block Store (Amazon EBS) volumes.The company must maintain backups in a separate AWS Region.The company must be able to recover the EC2 instances and their configuration within 1 business day, with loss of no more than 1 day’s worth of data.The company has limited staff and needs a backup solution that optimizes operational efficiency and cost.The company already has created an AWS CloudFormation template that can deploy the required network configuration in a secondary Region.Which solution will meet these requirements?Read More →

949Which solution should the data scientist use to improve the performance of the model?

2026-03-27
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In: MLS-C01
With: 2 Comments

A credit card company wants to identify fraudulent transactions in real time.A data scientist builds a machine learning model for this purpose.The transactional data is captured and stored in Amazon S3.The historic data is already labeled with two classes: fraud (positive) and fair transactions (negative).The data scientist removes all the missing data and builds a classifier by using the XGBoost algorithm in Amazon SageMaker.The model produces the following results:• True positive rate (TPR): 0.700• False negative rate (FNR): 0.300• True negative rate (TNR): 0.977• False positive rate (FPR): 0.023• Overall accuracy: 0.949Which solution should the data scientist use to improve the performance of the model?Read More →

What should the solutions architect do to meet these requirements?

2026-03-27
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In: SAA-C02
With: 2 Comments

A solutions architect is designing a new hybrid architecture to extend a company’s on-premises infrastructure to AWS.The company requires a highly available connection with consistent low latency to an AWS Region.The company needs to minimize costs and is willing to accept slower traffic if the primary connection fails.What should the solutions architect do to meet these requirements?Read More →

Which solution will meet these requirements?

2026-03-27
By:
In: DBS-C01
With: 2 Comments

A company runs online transaction processing (OLTP) workloads on an Amazon RDS for PostgreSQL Multi-AZ DB instance.The company recently conducted tests on the database after business hours, and the tests generated additional database logs.As a result, free storage of the DB instance is low and is expected to be exhausted in 2 days.The company wants to recover the free storage that the additional logs consumed.The solution must not result in downtime for the database.Which solution will meet these requirements?Read More →