A Machine Learning Specialist previously trained a logistic regression model using scikit-learn on a local machine, and the Specialist now wants to deploy it to production for inference only.What steps should be taken to ensure Amazon SageMaker can host a model that was trained locally?Read More →
A system admin is planning to encrypt all objects being uploaded to S3 from an application.The system admin does not want to implement his own encryption algorithm; instead he is planning to use server side encryption by supplying his own key (SSE-C).Which parameter is not required while making a call for SSE-C?Read More →
A user is implementing a third-party web application on an Amazon EC2 instance.All client communications must be over HTTPS, and traffic must be terminated before it reaches the instance.Communication to the instance must be over port 80.Company policy requires that workloads reside in private subnets.Which solution meets these requirements?Read More →
A software company has deployed an application that consumes a REST API by using Amazon API Gateway, AWS Lambda functions, and an AmazonDynamoDB 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 →
A company is planning to host an application on a set of Amazon EC2 instances that are distributed across multiple Availability Zones.The application must be able to scale to millions of requests each second.A SysOps administrator must design a solution to distribute the traffic to the EC2 instances.The solution must be optimized to handle sudden and volatile traffic patterns while using a single static IP address for each Availability Zone.Which solution will meet these requirements?Read More →
A company has a 20 TB production Amazon Aurora DB cluster.The company runs a large batch job overnight to load data into the Aurora DB cluster.To ensure the company’s development team has the most up-to-date data for testing, a copy of the DB cluster must be available in the shortest possible time after the batch job completes.How should this be accomplished?Read More →
A company is migrating a NoSQL database cluster to Amazon EC2.The database automatically replicates data to maintain at least three copies of the data.I/O throughput of the servers is the highest priority.Which instance type should a solutions architect recommend for the migration?Read More →
A machine learning specialist works for a fruit processing company and needs to build a system that categorizes apples into three types.The specialist has collected a dataset that contains 150 images for each type of apple and applied transfer learning on a neural network that was pretrained on ImageNet with this dataset.The company requires at least 85% accuracy to make use of the model.After an exhaustive grid search, the optimal hyperparameters produced the following:✑ 68% accuracy on the training set✑ 67% accuracy on the validation setWhat can the machine learning specialist do to improve the system’s accuracy?Read More →
A user is trying to create a PIOPS EBS volume with 8 GB size and 200 IOPS.Will AWS create the volume?Read More →
A company uses AWS CodePipeline for its software builds.Company policy mandates that code must be deployed to the staging environment before it is deployed to the production environment.The company needs to implement monitoring and alerting to detect when a CodePipeline pipeline is used to deploy code to production without the code first being deployed to staging.What should a security engineer do to meet these requirements?Read More →
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