A company wants to set up a continuous delivery pipeline.The company stores application code in a private GitHub repository.The company needs to deploy the application components to Amazon Elastic Container Service (Amazon ECS), Amazon EC2, and AWS Lambda.The pipeline must support manual approval actions.Which solution will meet these requirements?Read More →
A company has an initiative to reduce costs associated with Amazon EC2 and AWS Lambda.Which action should a SysOps administrator take to meet these requirements?Read More →
A company developed a Java application and deployed it to an Apache Tomcat server that runs on Amazon EC2 instances.The company’s Engineering team has implemented AWS CloudFormation and Chef Automate to automate the provisioning of and updates to the infrastructure and configuration of the application in the development, test, and production environments.These implementations have led to significantly improves reliability in releasing changes.The Engineering team reports there are frequent service disruptions due to unexpected errors when updating the application of the Apache Tomcat server.Which solution will increase the reliability of all releases?Read More →
A security engineer needs to ensure their company’s use of AWS meets AWS security best practices.As part of this, the AWS account root user must not be used for daily work.The root user must be monitored for use, and the security team must be alerted as quickly as possible if the root user is used.Which solution meets these requirements?Read More →
A developer is testing a new file storage application that uses an Amazon CloudFront distribution to serve content from an Amazon S3 bucket.The distribution accesses the S3 bucket by using an origin access identity (OAI).The S3 bucket’s permissions explicitly deny access to all other users.The application prompts users to authenticate on a login page and then uses signed cookies to allow users to access their personal storage directories.The developer has configured the distribution to use its default cache behavior with restricted viewer access and has set the origin to point to the S3 bucket.However, when the developer tries to navigate to the login page, the developer receives a 403 Forbidden error.The developer needs to implement a solution to allow unauthenticated access to the login page.The solution also must keep all private content secure.Which solution will meet these requirements?Read More →
Which two steps are required to generate a report detailing specific cost allocation tags when creating a Monthly Cost Allocation report? (Choose two.)Read More →
A data scientist is building a linear regression model.The scientist inspects the dataset and notices that the mode of the distribution is lower than the median, and the median is lower than the mean.Which data transformation will give the data scientist the ability to apply a linear regression model?Read More →
A company is designing an application.The application uses an AWS Lambda function to receive information through Amazon API Gateway and to store the information in an Amazon Aurora PostgreSQL database.During the proof-of-concept stage, the company has to increase the Lambda quotas significantly to handle the high volumes of data that the company needs to load into the database.A solutions architect must recommend a new design to improve scalability and minimize the configuration effort.Which solution will meet these requirements?Read More →
A company with 500,000 employees needs to supply its employee list to an application used by human resources.Every 30 minutes, the data is exported using the LDAP service to load into a new Amazon DynamoDB table.The data model has a base table with Employee ID for the partition key and a global secondary index with Organization ID as the partition key.While importing the data, a database specialist receives ProvisionedThroughputExceededException errors.After increasing the provisioned write capacity units(WCUs) to 50,000, the specialist receives the same errors.Amazon CloudWatch metrics show a consumption of 1,500 WCUs.What should the database specialist do to address the issue?Read More →
A development team is building an ecommerce application and is using Amazon Simple Notification Service (Amazon SNS) to send order messages to multiple endpoints.One of the endpoints is an external HTTP endpoint that is not always available.The development team needs to receive a notification if an order message is not delivered to the HTTP endpoint.What should a DevOps engineer do to meet these requirements?Read More →
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