Which changes in model training would MOST likely improve the model’s F1 score?

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

A manufacturing company needs to identify returned smartphones that have been damaged by moisture.The company has an automated process that produces 2,000 diagnostic values for each phone.The database contains more than five million phone evaluations.The evaluation process is consistent, and there are no missing values in the data.A machine learning (ML) specialist has trained an Amazon SageMaker linear learner ML model to classify phones as moisture damaged or not moisture damaged by using all available features.The model’s F1 score is 0.6.Which changes in model training would MOST likely improve the model’s F1 score? (Choose two.)Read More →

Which solution meets these requirements?

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

A company wants to migrate its MySQL database from on premises to AWS.The company recently experienced a database outage that significantly impacted the business.To ensure this does not happen again, the company wants a reliable database solution on AWS that minimizes data loss and stores every transaction on at least two nodes.Which solution meets these requirements?Read More →

How should the company identify the source of the problem?

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

A company has a production environment running on Amazon RDS for SQL Server with an in-house web application as the front end.During the last application maintenance window, new functionality was added to the web application to enhance the reporting capabilities for management.Since the update, the application is slow to respond to some reporting queries.How should the company identify the source of the problem?Read More →

Which solution will meet these requirements with the LEAST effort?

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

A company is developing a serverless multi-tier application on AWS.The company will build the serverless logic tier by using Amazon API Gateway and AWS Lambda.While the company builds the logic tier, a developer who works on the frontend of the application must develop integration tests.The tests must cover both positive and negative scenarios, depending on success and error HTTP status codes.Which solution will meet these requirements with the LEAST effort?Read More →

Which combination of actions should be performed to enable this replication?

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

A DevOps engineer needs to back up sensitive Amazon S3 objects that are stored within an S3 bucket with a private bucket policy using S3 cross-Region replication functionality.The objects need to be copied to a target bucket in a different AWS Region and account.Which combination of actions should be performed to enable this replication? (Choose three.)Read More →

Which solution is the MOST cost-effective way to meet these requirements?

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

A company wants to change its internal cloud billing strategy for each of its business units.Currently, the cloud governance team shares reports for overall cloud spending with the head of each business unit.The company uses AWS Organizations to manage the separate AWS accounts for each business unit.The existing tagging standard in Organizations includes the application, environment, and owner.The cloud governance team wants a centralized solution so each business unit receives monthly reports on its cloud spending.The solution should also send notifications for any cloud spending that exceeds a set threshold.Which solution is the MOST cost-effective way to meet these requirements?Read More →

Which solution will meet these requirements?

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

A company hosts a video streaming web application in a VPC.The company uses a Network Load Balancer (NLB) to handle TCP traffic for real-time data processing.There have been unauthorized attempts to access the application.The company wants to improve application security with minimal architectural change to prevent unauthorized attempts to access the application.Which solution will meet these requirements?Read More →