Solutions Architect Professional (Page 121)

A company has an Amazon EC2 deployment that has the following architecture:✑ An application tier that contains 8 m4.xlarge instances✑ A Classic Load Balancer✑ Amazon S3 as a persistent data storeAfter one of the EC2 instances fails, users report very slow processing of their requests.A Solutions Architect must recommend design changes to maximize system reliability.The solution must minimize costs.What should the Solutions Architect recommend?Read More →

A company currently uses Amazon EBS and Amazon RDS for storage purposes.The company intends to use a pilot light approach for disaster recovery in a different AWS Region.The company has an RTO of 6 hours and an RPO of 24 hours.Which solution would achieve the requirements with MINIMAL cost?Read More →

A company that is new to AWS reports it has exhausted its service limits across several accounts that are on the Basic Support plan.The company would like to prevent this from happening in the future.What is the MOST efficient way of monitoring and managing all service limits in the company’s accounts?Read More →

A Solutions Architect must update an application environment within AWS Elastic Beanstalk using a blue/green deployment methodology.The Solutions Architect creates an environment that is identical to the existing application environment and deploys the application to the new environment.What should be done next to complete the update?Read More →

A company is using AWS to run an internet-facing production application written in Node.js.The Development team is responsible for pushing new versions of their software directly to production.The application software is updated multiple times a day.The team needs guidance from a Solutions Architect to help them deploy the software to the production fleet quickly and with the least amount of disruption to the service.Which option meets these requirements?Read More →

A company runs a dynamic mission-critical web application that has an SLA of 99.99%.Global application users access the application 24/7.The application is currently hosted on premises and routinely fails to meet its SLA, especially when millions of users access the application concurrently.Remote users complain of latency.How should this application be redesigned to be scalable and allow for automatic failover at the lowest cost?Read More →

A company that provides wireless services needs a solution to store and analyze log files about user activities.Currently, log files are delivered daily to AmazonLinux on an Amazon EC2 instance.A batch script is run once a day to aggregate data used for analysis by a third-party tool.The data pushed to the third-party tool is used to generate a visualization for end users.The batch script is cumbersome to maintain, and it takes several hours to deliver the ever-increasing data volumes to the third-party tool.The company wants to lower costs, and is open to considering a new tool that minimizes development effort and lowers administrative overhead.The company wants to build a more agile solution that can store and perform the analysis in near-real time, with minimal overhead.The solution needs to be cost effective and scalable to meet the company’s end-user base growth.Which solution meets the company’s requirements?Read More →

A company wants to move a web application to AWS.The application stores session information locally on each web server, which will make auto scaling difficult.As part of the migration, the application will be rewritten to decouple the session data from the web servers.The company requires low latency, scalability, and availability.Which service will meet the requirements for storing the session information in the MOST cost-effective way?Read More →

A company has a web application that uses Amazon API Gateway, AWS Lambda, and Amazon DynamoDB.A recent marketing campaign has increased demand.Monitoring software reports that many requests have significantly longer response times than before the marketing campaign.A solutions architect enabled Amazon CloudWatch Logs for API Gateway and noticed that errors are occurring on 20% of the requests.In CloudWatch, theLambda function Throttles metric represents 1% of the requests and the Errors metric represents 10% of the requests.Application logs indicate that, when errors occur, there is a call to DynamoDB.What change should the solutions architect make to improve the current response times as the web application becomes more popular?Read More →

A company is using a lift-and-shift strategy to migrate applications from several on-premises Windows servers to AWS.The Windows servers will be hosted onAmazon EC2 instances in the us-east-1 Region.The company’s security policy allows the installation of migration tools on servers.The migration data must be encrypted in transit and encrypted at rest.The applications are business critical.The company needs to minimize the cutover window and minimize the downtime that results from the migration.The company wants to use Amazon CloudWatch and AWS CloudTrail for monitoring.Which solution will meet these requirements?Read More →