Principles of Cloud Native design - 12 Factor apps

1. 1. What is the 12-factor app?
   
   

• a. A cloud computing platform

• b. A methodology for building cloud-native applications

• c. An open-source programming language

2. 2. How does the 12-factor app handle dependencies?
   
   

• a. Implicit reliance on system-wide packages

• b. Explicit declaration and isolation of dependencies

• c. Embedding dependencies within the application code

3. 3. Which tool is commonly used for dependency management in Java applications mentioned in the text?
   
   

• a. Docker

• b. Maven

• c. Kubernetes

4. 4. Why is it essential to separate configuration from application code?

• a. To increase code complexity

• b. To reduce deployment flexibility

• c. To enable deployment to multiple environments and reduce the risk of exposing sensitive information

5. 5. What is the purpose of treating backing services as bound resources?
   

• a. To tightly couple the application to specific services

• b. To increase dependence on external services

• c. To enable flexibility and resilience by allowing dynamic binding and detachment of services

6. 6. What does the "Dev/Prod parity" factor emphasize?
   
   

• a. Keeping development environments different from production

• b. Keeping development, staging, and production environments as similar as possible

• c. Ignoring the development stage in the application lifecycle

7. 7. What is the significance of the "Logs" factor in cloud-native applications?
   

• 7. a. To increase application code complexity

• b. To delegate log routing and storage responsibilities to the cloud provider

• 7. c. To eliminate the need for real-time metrics and analysis

8. 8. How does the "Concurrency" factor suggest handling workload scaling in cloud-native applications?
   

• a. Through vertical scaling

• b. By manually adding resources to a single instance

• c. By horizontally scaling, creating multiple processes based on workload

9. 9. What is the purpose of the "Disposability" factor in cloud-native applications?
   

• 9. a. To encourage emotional attachment to application instances

• 9. b. To ensure slow start-up times for better user experience

• c. To enable rapid start-up and graceful shutdown for effective scaling and resource management

10. 10. Which tool is mentioned for automating service binding in the context of the "Port Binding" factor?
    

• 10. a. Docker

• 10. b. Kubernetes

• c. Open Liberty Operator