An Application That Runs on Amazon EC2 Instances Behind an Application

question 383

Multiple Choice

An application that runs on Amazon EC2 instances behind an Application Load Balancer is deployed using AWS Elastic Beanstalk. During a recent rolling deployment, users experienced application errors even though application health checks were passing on all instances. A log analysis shows that the errors were caused by user requests being processed by two different versions of the application behind the same load balancer. The analysis also shows a recent change made the responses backward incompatible. Which deployment method will address these issues?

• A) Update Elastic Beanstalk to deploy using the all at once method.
• B) Update Elastic Beanstalk to deploy using the blue/green method.
• C) Update Elastic Beanstalk to deploy using the immutable method.
• D) Update Elastic Beanstalk to deploy using the rolling with additional batch method.

---

Definitions:

Self-Important

Pertains to an exaggerated estimation of one's own importance or significance.

Hour-By-Hour Facebook Postings

The act of updating one's Facebook timeline with posts or status updates at hourly intervals.

Resolution to Lose Weight

A personal commitment or decision to undergo a process of reducing one’s body weight, typically as a New Year's resolution.

Monitor and Record Progress

The process of regularly observing and documenting the advancement or development towards a specific goal or objective.