WGU D319 PRE-ASSESSMENT: AWS Cloud Architecture/ (Top 2024/2025 EXAM REVIEW PAPERS / GRADED A+/ 100% Accurate)

WGU D319 PRE-ASSESSMENT: AWS Cloud Architecture An enterprise wants to build an application for selling concert tickets, with a web layer and an application layer. Which Amazon service should be used so ticket orders are not lost if the application layer fails? -SQS To comply with its disaster recovery requirements, an enterprise is required to store copies of all data in a specific Amazon S3 bucket in an additional Region. How should this requirement be fulfilled? - Enable versioning for the source bucket and configure Cross-Region Replication An application is deployed in the us-west-1 and eu-west-1 Regions, and the users should be sent to the Region with the fastest response for them, regardless of their location. The solution must minimize administrative effort. Which routing policy should be used? -Latency A notification is sent to an Amazon SQS queue when an object is uploaded to an Amazon S3 bucket. An Amazon ECS cluster processes messages from the queue. The required queue size fluctuates based on the number of incoming messages and the processing speed. The company needs to design a scaling strategy for auto scaling that will minimize the queue size. Which metric should be used for auto scaling to minimize the queue size? -Amazon SQS messages A company hosts a website from two EC2 instances. Users access the website through an Elastic Load Balancer (ELB). The company needs to ensure the website is highly available if one or more of the EC2 instances are unavailable. Which solution should this company use? -Configure the ELB to implement Auto Scaling based on health checks A company plans to migrate a legacy application to EC2 with no modifications to the application. The company hopes to add modern cloud features to immediately respond to changing needs. Which cloud feature will achieve this goal? -Auto scaling A company plans to migrate a legacy application to EC2 with no modifications to the application. The application has regular seasonal increases in demand, and it must automatically adapt to these needs. Which scaling option should be included in the migration? -Scheduled A company plans to migrate a legacy application to Amazon EC2 with no modifications to the application. The application constantly changes demands with no patterns, and it must automatically adapt to these needs. Which scaling option should be included in the migration? -Dynamic A company plans to migrate a legacy application to Amazon EC2 with no modifications to the application. Once the application has completed a trial in the cloud, the company needs to use machine learning algorithms to adapt the application to changing demands. Which scaling option should be used? -Predictive A web application uses a web server with a separate database server. The database provides results to the web server. Users report long delays in receiving their results. Logs reveal that the CPU utilization metric for the web server consistently reaches 100%. Performance metrics for the database are nominal. How can the response time be improved? -By scaling the web server layer through the addition of web servers An administrator is concerned that a consumer may fail and not receive every message immediately. The administrator chooses to use Amazon Simple Queue Service (Amazon SQS) to ensure the consumer will be able to receive all the messages. Which mechanism does Amazon SQS use to allow the consumer to receive a queued message after the consumer is restored? -Pull How should an administrator recover queued messages from Amazon Simple Queue Service (Amazon SQS) if the consumer fails? -Pull the queue after the application is restored An application has the following storage requirements: Information is stored in multiple tables on a single server. Master records can be linked to zero or more child records by using shared keys. The solution must support up to 15 additional replicas. Which solution should be used? -Amazon Aurora A Linux application needs to use a shared file system. Which solution should be used? -Amazon EFS A company has data stored on premises and needs to identify a solution that stores snapshots of the local data in AWS. Which solution should be use