Task 2.1: Design Scalable and Loosely Coupled Architectures SAA-C03 Practice Questions (Page 10)

Questions 46–50

1. 46foundation · easy

   An application needs to react to changes in business events, such as new orders or inventory updates, and trigger downstream processes. Which architecture style is most appropriate?

   • AClient-server architecture
   • BEvent-driven architecture
   • CMulti-tier architecture
   • DMonolithic architecture
   Reveal Solution Discussion Select an answer first
2. 47application · medium

   A company has an application that processes user uploads. The processing is triggered by an S3 event and can take up to 5 minutes to complete. The workload is spiky and unpredictable. The company wants to minimize operational overhead and cost. Which solution should a solutions architect recommend?

   • AUse Amazon ECS with EC2 launch type to run a containerized processing application.
   • BUse an AWS Lambda function to process the uploads.
   • CUse a single EC2 instance to process the uploads.
   • DUse a fleet of EC2 instances in an Auto Scaling group to process the uploads.
   Reveal Solution Discussion Select an answer first
4. 48foundation · easy

   A company wants to transfer files securely from an on-premises SFTP server to Amazon S3 without managing the underlying SFTP infrastructure. Which AWS service is designed for this?

   • AAWS DataSync
   • BAWS Storage Gateway
   • CAmazon S3 Transfer Acceleration
   • DAWS Transfer Family
   Reveal Solution Discussion Select an answer first
5. 49foundation · easy

   Which AWS service uses a publish/subscribe model to send messages to multiple subscribers?

   • AAWS Lambda
   • BAmazon Kinesis
   • CAmazon SNS
   • DAmazon SQS
   Reveal Solution Discussion Select an answer first
6. 50application · medium

   A company runs a batch processing application on a single EC2 instance. The application is memory-intensive and processes a fixed-size dataset that is loaded entirely into memory. The application is single-threaded and cannot be parallelized. The company expects the dataset size to grow by 20% each year. Which scaling strategy should a solutions architect recommend?

   • AMigrate the application to AWS Lambda and increase the memory allocated to the function.
   • BUse horizontal scaling by adding more EC2 instances and using a load balancer to distribute the work.
   • CUse vertical scaling by moving the application to a larger EC2 instance type with more memory.
   • DUse an Application Load Balancer to distribute the dataset across multiple EC2 instances.
   Reveal Solution Discussion Select an answer first