AWS, JavaScript, React - Deploy Web Apps on the Cloud - Elastic IP (Theory)

The video tutorial explains the concept of Elastic IPs in AWS, highlighting their characteristics, such as being reserved IPs that can be associated or disassociated with EC2 instances and transferred within a region. It provides a practical use case where a developer uses an Elastic IP to ensure zero downtime during server updates by switching the IP from an old instance to a new one. The tutorial emphasizes the importance of Elastic IPs in AWS for maintaining consistent IP addresses and minimizing downtime.

What is a key feature of an Elastic IP in AWS?

• It cannot be deleted once created.

• It is a dynamic IP that changes frequently.

• It is a reserved IP that can be transferred between instances.

• It is only used for internal network communication.

What should you confirm before deleting an Elastic IP?

• That it is associated with a running instance.

• That it is being billed correctly.

• That it is not associated with any operational instance.

• That it is linked to a DNS record.

In the example use case, why does the developer replicate the production server?

• To reduce server costs.

• To improve server security.

• To test new features without affecting the live server.

• To increase server capacity.

How does the developer ensure zero downtime during the application update?

• By using a backup server.

• By switching the Elastic IP to the updated instance.

• By using a load balancer.

• By deploying a new server.

What is emphasized about Elastic IPs in the conclusion?

• They have limited use cases.

• They are an important feature with various applications in AWS.

• They are only useful for web applications.

• They are primarily used for cost-saving.