A machine learning (ML) engineer is integrating a production model with a customer metadata repository for real-time inference.The repository is hosted in Amazon SageMaker Feature Store.The engineer wants to retrieve only the latest version of the customer metadata record for a single customer at a time.Which solution will meet these requirements?Read More →
You are running a web-application on AWS consisting of the following components an Elastic Load Balancer (ELB) an Auto-Scaling Group of EC2 instances running Linux/PHP/Apache, and Relational DataBase Service (RDS) MySQL.Which security measures fall into AWS’s responsibility?Read More →
Which pillar of the AWS Well-Architected Framework focuses on the ability to run workloads effectively, gain insight into operations, and continuously improve supporting processes and procedures?Read More →
A company runs an application on Amazon EC2 instances behind an Application Load Balancer.The instances run in an Amazon EC2 Auto Scaling group.The company has configured the Amazon CloudWatch agent to capture custom metrics within the instances.When the company launches new instances, the agent starts successfully, but it does not deliver any custom metrics to CloudWatch.Which action will deliver the custom metrics to CloudWatch?Read More →
A company maintains sensitive data in an Amazon S3 bucket that must be protected using an AWS KMS CMK.The company requires that keys be rotated automatically every year.How should the bucket be configured?Read More →
A company runs a legacy system on a single m4.2xlarge Amazon EC2 instance with Amazon EBS storage.The EC2 instance runs both the web server and a self- managed Oracle database.A snapshot is made of the EBS volume every 12 hours, and an AMI was created from the fully configured EC2 instance.A recent event that terminated the EC2 instance led to several hours of downtime.The application was successfully launched from the AMI, but the age of theEBS snapshot and the repair of the database resulted in the loss of 8 hours of data.The system was also down for 4 hours while the Systems Operators manually performed these processes.What architectural changes will minimize downtime and reduce the chance of lost data?Read More →
A SysOps administrator has used AWS CloudFormation to deploy a serverless application into a production VPC.The application consists of an AWS Lambda function, an Amazon DynamoDB table, and an Amazon API Gateway API.The SysOps administrator must delete the AWS CloudFormation stack without deleting the DynamoDB table.Which action should the SysOps administrator take before deleting the AWS CloudFormation stack?Read More →
A company that uses electronic health records is running a fleet of Amazon EC2 instances with an Amazon Linux operating system.As part of patient privacy requirements, the company must ensure continuous compliance for patches for operating system and applications running on the EC2 instances.How can the deployments of the operating system and application patches be automated using a default and custom repository?Read More →
A company maintains several databases using Amazon RDS for MySQL and PostgreSQL.Each RDS database generates log files with retention periods set to their default values.The company has now mandated that database logs be maintained for up to 90 days in a centralized repository to facilitate real-time and after-the-fact analyses.What should a Database Specialist do to meet these requirements with minimal effort?Read More →
A company is running an application on Amazon EC2 instances.Traffic to the workload increases substantially during business hours and decreases afterward.The CPU utilization of an EC2 instance is a strong indicator of end-user demand on the application.The company has configured an Auto Scaling group to have a minimum group size of 2 EC2 instances and a maximum group size of 10 EC2 instances.The company is concerned that the current scaling policy that is associated with the Auto Scaling group might not be correct.The company must avoid over- provisioning EC2 instances and incurring unnecessary costs.What should a solutions architect recommend to meet these requirements?Read More →
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