A DevOps Engineer Is Implementing a Mechanism for Canary Testing

question 209

Multiple Choice

A DevOps Engineer is implementing a mechanism for canary testing an application on AWS. The application was recently modified and went through security, unit, and functional testing. The application needs to be deployed on an AutoScaling group and must use a Classic Load Balancer. Which design meets the requirement for canary testing?

• A) Create a different Classic Load Balancer and Auto Scaling group for blue/green environments. Use Amazon Route 53 and create weighted A records on Classic Load Balancer.
• B) Create a single Classic Load Balancer and an Auto Scaling group for blue/green environments. Use Amazon Route 53 and create A records for Classic Load Balancer IPs. Adjust traffic using A records.
• C) Create a single Classic Load Balancer and an Auto Scaling group for blue/green environments. Create an Amazon CloudFront distribution with the Classic Load Balancer as the origin. Adjust traffic using CloudFront.
• D) Create a different Classic Load Balancer and Auto Scaling group for blue/green environments. Create an Amazon API Gateway with a separate stage for the Classic Load Balancer. Adjust traffic by giving weights to this stage.

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Definitions:

ROI

Stands for Return on Investment, a measure used to evaluate the performance and profitability of an investment by comparing its gains to its costs.

Strategic Group

A concept in strategic management that groups companies within an industry that have similar business models or strategies, allowing for analysis of competition and strategic positioning.

Niche Market

A small, specialized segment of the market with specific needs that are not being addressed by mainstream providers.

Market Share

The portion of a market controlled by a particular company, product, or brand, often expressed as a percentage of total sales in that market.