A company that hosts its web application on AWS wants to ensure all Amazon EC2 instances, Amazon RDS DB instances, and Amazon Redshift clusters are configured with tags.The company wants to minimize the effort of configuring and operating this check.What should a solutions architect do to accomplish this?Read More →
A banking company provides financial products to customers around the world.A machine learning (ML) specialist collected transaction data from internal customers.The ML specialist split the dataset into training, testing, and validation datasets.The ML specialist analyzed the training dataset by using Amazon SageMaker Clarify.The analysis found that the training dataset contained fewer examples of customers in the 40 to 55 year-old age group compared to the other age groups.Which type of pretraining bias did the ML specialist observe in the training dataset?Read More →
A user has created a VPC with CIDR 20.0.0.0/24.The user has created a public subnet with CIDR 20.0.0.0/25.The user is trying to create the private subnet withCIDR 20.0.0.128/25.Which of the below mentioned statements is true in this scenario?Read More →
A company is using an Amazon RDS DB instance for an application that is deployed in the AWS Cloud.The company needs regular patching of the operating system of the server where the DB instance runs.What is the company’s responsibility in this situation, according to the AWS shared responsibility model?Read More →
A developer has created an AWS Lambda function that interacts with an Amazon Aurora MySQL database.The Lambda function makes queries to the database.After a performance test for the Lambda function, the database starts to show an error for too many connections.Which solution will solve this problem with the LEAST operational effort?Read More →
A company website runs on Amazon EC2 instances behind an Application Load Balancer (ALB).The instances run in an Auto Scaling group across multipleAvailability Zones.There is an Amazon CloudFront distribution in front of the ALB.Users are reporting performance problems.A security engineer discovers that the website is receiving a high rate of unwanted requests to the CloudFront distribution originating from a series of source IP addresses.How should the security engineer address this problem?Read More →
A company is finalizing the architecture for its backup solution for applications running on AWS.All of the applications run on AWS and use at least two AvailabilityZones in each tier.Company policy requires IT to durably store nightly backups for all its data in at least two locations: production and disaster recovery.The locations must be in different geographic regions.The company also needs the backup to be available to restore immediately at the production data center, and within 24 hours at the disaster recovery location.All backup processes must be fully automated.What is the MOST cost-effective backup solution that will meet all requirements?Read More →
A company’s SysOps administrator is troubleshooting communication between the components of an application.The company configured VPC flow logs to be published to Amazon CloudWatch Logs.However, there are no logs in CloudWatch Logs.What could be blocking the VPC flow logs from being published to CloudWatch Logs?Read More →
A DevOps Engineer must track the health of a stateless RESTful service sitting behind a Classic Load Balancer.The deployment of new application revisions is through a CI/CD pipeline.If the service’s latency increases beyond a defined threshold, deployment should be stopped until the service has recovered.Which of the following methods allow for the QUICKEST detection time?Read More →
A company runs a MySQL database for its ecommerce application on a single Amazon RDS DB instance.Application purchases are automatically saved to the database, which causes intensive writes.Company employees frequently generate purchase reports.The company needs to improve database performance and reduce downtime due to patching for upgrades.Which approach will meet these requirements with the LEAST amount of operational overhead?Read More →
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