Which collection of design choices should a solutions architect make to achieve the maximum performance from the HPC cluster?

2026-04-02
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In: SAP-C02
With: 2 Comments

A company has built a high performance computing (HPC) cluster in AWS for a tightly coupled workload that generates a large number of shared files stored in Amazon EFS.The cluster was performing well when the number of Amazon EC2 instances in the cluster was 100.However, when the company increased the cluster size to 1.000 EC2 instances, overall performance was well below expectations.Which collection of design choices should a solutions architect make to achieve the maximum performance from the HPC cluster? (Choose three.)Read More →

Which solution will meet these requirements?

2026-04-02
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In: DVA-C01
With: 2 Comments

A company’s developer is building a static website to be deployed in Amazon S3 for a production environment.The website integrates with an Amazon Aurora PostgreSQL database by using an AWS Lambda function.The website that is deployed to production will use a Lambda alias that points to a specific version of the Lambda function.The company must rotate the database credentials every 2 weeks.Lambda functions that the company deployed previously must be able to use the most recent credentials.Which solution will meet these requirements?Read More →

Which architecture should be used to scale the solution at the lowest cost?

2026-04-02
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In: MLS-C01
With: 2 Comments

A technology startup is using complex deep neural networks and GPU compute to recommend the company’s products to its existing customers based upon each customer’s habits and interactions.The solution currently pulls each dataset from an Amazon S3 bucket before loading the data into a TensorFlow model pulled from the company’s Git repository that runs locally.This job then runs for several hours while continually outputting its progress to the same S3 bucket.The job can be paused, restarted, and continued at any time in the event of a failure, and is run from a central queue.Senior managers are concerned about the complexity of the solution’s resource management and the costs involved in repeating the process regularly.They ask for the workload to be automated so it runs once a week, starting Monday and completing by the close of business Friday.Which architecture should be used to scale the solution at the lowest cost?Read More →

Which combination of actions should the database specialist take to meet these requirements?

2026-04-02
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In: DBS-C01
With: 2 Comments

A company has a database fleet that includes an Amazon RDS for MySQL DB instance.During an audit, the company discovered that the data that is stored on the DB instance is unencrypted.A database specialist must enable encryption for the DB instance.The database specialist also must encrypt all connections to the DB instance.Which combination of actions should the database specialist take to meet these requirements? (Choose three.)Read More →

Which solution will meet these requirements?

2026-04-02
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In: DVA-C02
With: 2 Comments

A developer is creating a web application for a school that stores data in Amazon DynamoDB.The ExamScores table has the following attributes: student_id, subject_name, and top_score.Each item in the ExamScores table is identified with student_id as the partition key and subject_name as the sort key.The web application needs to display the student _id for the top scores for each school subject.The developer needs to increase the speed of the queries to retrieve the student_id for the top scorer for each school subject.Which solution will meet these requirements?Read More →

Which action should the administrator take to ensure that users access objects in Amazon S3 by using only CloudFront URLs?

2026-04-02
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In: SOA-C02
With: 2 Comments

A SysOps administrator is reviewing AWS Trusted Advisor warnings and encounters a warning for an S3 bucket policy that has open access permissions.While discussing the issue with the bucket owner, the administrator realizes the S3 bucket is an origin for an Amazon CloudFront web distribution.Which action should the administrator take to ensure that users access objects in Amazon S3 by using only CloudFront URLs?Read More →