What should the solutions architect recommend to improve the customer experience?

2026-04-01
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In: SAP-C02
With: 2 Comments

A software company has deployed an application that consumes a REST API by using Amazon API Gateway, AWS Lambda functions, and an Amazon DynamoDB table.The application is showing an increase in the number of errors during PUT requests.Most of the PUT calls come from a small number of clients that are authenticated with specific API keys.A solutions architect has identified that a large number of the PUT requests originate from one client.The API is noncritical, and clients can tolerate retries of unsuccessful calls.However, the errors are displayed to customers and are causing damage to the API’s reputation.What should the solutions architect recommend to improve the customer experience?Read More →

Which combination of actions will be MOST cost-effective?

2026-04-01
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In: SOA-C01
With: 2 Comments

A financial service company is running distributed computing software to manage a fleet of 20 servers for their calculations.There are 2 control nodes and 18 worker nodes to run the calculations.Worker nodes can be automatically started by the control nodes when required.Currently, all nodes are running on demand, and the worker nodes are used for approximately 4 hours each day.Which combination of actions will be MOST cost-effective? (Choose two.)Read More →

Which solution will meet these requirements?

2026-03-31
By:
In: MLS-C01
With: 2 Comments

A data scientist uses Amazon SageMaker Data Wrangler to analyze and visualize data.The data scientist wants to refine a training dataset by selecting predictor variables that are strongly predictive of the target variable.The target variable correlates with other predictor variables.The data scientist wants to understand the variance in the data along various directions in the feature space.Which solution will meet these requirements?Read More →

Which solution will meet these requirements?

2026-03-31
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In: SAA-C02
With: 2 Comments

A large media company hosts a web application on AWS.The company wants to start caching confidential media files so that users around the world will have reliable access to the files.The content is stored in Amazon S3 buckets.The company must deliver the content quickly, regardless of where the requests originate geographically.Which solution will meet these requirements?Read More →

What AWS service should be used to accomplish this?

2026-03-31
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In: DVA-C02
With: 2 Comments

An organization is storing large files in Amazon S3, and is writing a web application to display meta-data about the files to end-users.Based on the metadata a user selects an object to download.The organization needs a mechanism to index the files and provide single-digit millisecond latency retrieval for the metadata.What AWS service should be used to accomplish this?Read More →

What should the DevOps engineer do to meet these requirements?

2026-03-31
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In: DOP-C01
With: 2 Comments

A company’s DevOps engineer is working in a multi-account environment.The company uses AWS Transit Gateway to route all outbound traffic through a network operations account.In the network operations account, all account traffic passes through a firewall appliance for inspection before the traffic goes to an internet gateway.The firewall appliance sends logs to Amazon CloudWatch Logs and includes event severities of CRITICAL, HIGH, MEDIUM, LOW, and INFO.The security team wants to receive an alert if any CRITICAL events occur.What should the DevOps engineer do to meet these requirements?Read More →

Which solution will resolve this problem?

2026-03-31
By:
In: DOP-C02
With: 2 Comments

A company has configured an Amazon S3 event source on an AWS Lambda function.The company needs the Lambda function to run when a new object is created or an existing object is modified in a particular S3 bucket.The Lambda function will use the S3 bucket name and the S3 object key of the incoming event to read the contents of the created or modified S3 object.The Lambda function will parse the contents and save the parsed contents to an Amazon DynamoDB table.The Lambda function’s execution role has permissions to read from the S3 bucket and to write to the DynamoDB table.During testing, a DevOps engineer discovers that the Lambda function does not run when objects are added to the S3 bucket or when existing objects are modified.Which solution will resolve this problem?Read More →