Arch End Quiz

A company is going to setup an application that will be based on Docker-based containers. The containers will be setup in the Elastic Container Service. You need to also setup load balancing for the underlying services which are based on dynamic port values. Which of the following would be the fully managed service to use for this purpose?

• Classic Load Balancer

• Route 53

• Network Load Balancer

• Application Load Balancer

A Company is currently hosting an application which connects to a MySQL AWS RDS Instance. Of late there have been many performance issues being encountered. After careful analysis, it has been determined that the issue is occurring as a result of similar queries being fired against the database. Which of the following can be added to the architecture to alleviate the performance issue?

• Enable Multi-AZ for the database

• Use the Elastic Cache Service

• Use Read replica

• Use CloudFront in front of the database

A Solutions architect has been asked to design an order processing e-commerce application on AWS where synchronous transaction processing is not required. Some of the order processing tasks might take a long time and require integrations with external applications.

• Use AWS Simple Workflow Service to design activities coordination between different components of the application.

• Use Step functions to design activities coordination between different components of the application.

• Use API Gateway and Lambda to design the application.

• Use SQS to coordinate the activities of the application.

Your company is currently hosting a long-running heavy load application on its On-premise environment. The company has developed this application in-house. Consulting companies then use this application via API calls, and each API call may take half an hour to finish. You now need to consider moving this application to AWS. Which of the following services would be best suited in the architecture design, which would also help deliver a cost-effective solution? Choose 2 answers from the options given below.

• AWS Lambda

• AWS API Gateway

• AWS Config

• AWS EC2

An application consists of a fleet of EC2 Instances. These Instances are launched in the Oregon (us-west-2) region which consists of 3 availability zones. This application needs 6 Instances running at all times. As an architect, you need to distribute the instances so that the application could still maintain its capacity if any availability zone goes down. Also, you need to ensure that the cost is kept to a minimum? Which of the following configurations would you consider?

• 6 Instances running in us-west-2a, 6 Instances running in us-west-2b, 6 Instances running in us-west-2c

• 3 Instances running in us-west-2a, 3 Instances running in us-west-2c

• 6 Instances running in us-west-2a, 3 Instances running in us-west-2b, 3 Instances running in us-west-2c

• 3 Instances running in us-west-2a, 3 Instances running in us-west-2b, 3 Instances running in us-west-2c

A company has an application defined with the following architecture.

A fleet of EC2 Instances

which are used to accept video uploads from users. A fleet of EC2 Instances

which are used to process the video uploads.

Which of the following would help architect an operationally excellent architecture?

• Create an SQS queue to store the information for Video uploads. Spin up the processing servers via an Autoscaling Group. Ensure the Group scales based on the Memory utilization of the underlying processing servers.

• Create an SQS queue to store the information for Video uploads. Spin up the processing servers via an Autoscaling Group. Ensure the Group scales based on the size of the queue.

• Create an SNS topic to store the information for Video uploads. Spin up the processing servers via an Autoscaling Group. Ensure the Group scales based on the Memory utilization of the underlying processing servers.

• Create an SNS topic to store the information for Video uploads. Spin up the processing servers via an Autoscaling Group. Ensure the Group scales based on the size of the queue messages.