Which TensorFlow estimator configuration will train the model MOST cost-effectively?

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

A manufacturing company wants to create a machine learning (ML) model to predict when equipment is likely to fail.A data science team already constructed a deep learning model by using TensorFlow and a custom Python script in a local environment.The company wants to use Amazon SageMaker to train the model.Which TensorFlow estimator configuration will train the model MOST cost-effectively?Read More →

Which solution will meet these requirements?

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

An online bookstore uses Amazon Aurora MySQL as its backend database.After the online bookstore added a popular book to the online catalog, customers began reporting intermittent timeouts on the checkout page.A database specialist determined that increased load was causing locking contention on the database.The database specialist wants to automatically detect and diagnose database performance issues and to resolve bottlenecks faster.Which solution will meet these requirements?Read More →

Which index will provide the FASTEST response for this query?

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

A company has an ecommerce application.To track product reviews, the company’s development team uses an Amazon DynamoDB table.Every record includes the following:• A Review ID, a 16-digit universally unique identifier (UUID)• A Product ID and User ID, 16-digit UUIDs that reference other tables• A Product Rating on a scale of 1-5• An optional comment from the userThe table partition key is the Review ID.The most performed query against the table is to find the 10 reviews with the highest rating for a given product.Which index will provide the FASTEST response for this query?Read More →

What will happen to the permissions of the administrative 1AM roles as a result of this change?

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

A company uses AWS Organizations to manage its AWS accounts.The organization root has a child OU that is named Department.The Department OU has a child OU that is named Engineering.The default FullAWSAccess policy is attached to the root, the Department OU, and the Engineering OU.The company has many AWS accounts in the Engineering OU.Each account has an administrative IAM role with the AdministratorAccess IAM policy attached.The default FullAWSAccessPolicy is also attached to each account.A DevOps engineer plans to remove the FullAWSAccess policy from the Department OU.The DevOps engineer will replace the policy with a policy that contains an Allow statement for all Amazon EC2 API operations.What will happen to the permissions of the administrative 1AM roles as a result of this change?Read More →

When looking at the web server logs, the following error is repeated multiple times:*** Error Establishing a Database ConnectionWhich of the following may be causes of the connectivity problems?

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

A new application runs on Amazon EC2 instances and accesses data in an Amazon RDS database instance.When fully deployed in production, the application fails.The database can be queried from a console on a bastion host.When looking at the web server logs, the following error is repeated multiple times:*** Error Establishing a Database ConnectionWhich of the following may be causes of the connectivity problems? (Choose two.)Read More →

Which solution will meet these requirements?

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

A company needs to move its write-intensive Amazon RDS for PostgreSQL database from the eu-west-1 Region to the eu-north-1 Region.As part of the migration, the company needs to change from Amazon RDS for PostgreSQL to Amazon Aurora PostgreSQL.The company is using a new AWS account to host a new Aurora PostgreSQL DB cluster.The RDS database is encrypted with an AWS managed AWS Key Management Service (AWS KMS) key.There must be no interruption to applications that use the RDS for PostgreSQL DB instance.Which solution will meet these requirements?Read More →

Which solution will meet these requirements?

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

A company hosts its main public web application in one AWS Region across multiple Availability Zones.The application uses an Amazon EC2 Auto Scaling group and an Application Load Balancer (ALB).A web development team needs a cost-optimized compute solution to improve the company’s ability to serve dynamic content globally to millions of customers.Which solution will meet these requirements?Read More →