AWS Cloud Architecture and Design Principles Flashcards

Which deployment strategy releases new application versions to a small subset of users before a full rollout?

Answer: Canary Deployment

A Canary deployment routes a small percentage of traffic to the new version first, allowing issues to be detected before affecting all users.

Which AWS service helps you orchestrate multi-step workflows and coordinate distributed application components?

Answer: AWS Step Functions

AWS Step Functions is a serverless workflow orchestration service that coordinates multiple AWS services into visual, automated workflows using state machines.

Which AWS service provides a publish-subscribe messaging model to send notifications to multiple subscribers simultaneously?

Answer: Amazon SNS

Amazon SNS (Simple Notification Service) uses a pub-sub model to fan out messages to multiple subscribers including SQS queues, Lambda functions, and email endpoints.

What does 'high availability' mean in AWS architecture?

Answer: Designing systems to remain operational despite component failures by eliminating single points of failure

High availability means designing architectures with redundancy and automatic failover so systems remain accessible even when individual components fail.

Which AWS service streams real-time data at scale, such as log data, clickstreams, or IoT telemetry?

Answer: Amazon Kinesis

Amazon Kinesis is a platform for collecting, processing, and analyzing real-time streaming data like application logs, website clickstreams, and IoT sensor data.

Which Well-Architected Framework pillar addresses reducing the environmental impact of your cloud workloads?

Answer: Sustainability

The Sustainability pillar, added in 2021, focuses on minimizing the environmental impact of running cloud workloads through efficient resource utilization.