Which of the following best defines the concept of re-factoring in cloud migration?

Re-factoring in cloud migration refers to the process of rebuilding applications with a focus on utilizing cloud-native technologies. This approach typically involves taking an existing application and re-architecting it to fully leverage the benefits of cloud environments, such as scalability, resilience, and cost-effectiveness. By employing cloud-native tools and practices, such as microservices architecture or serverless computing, organizations can enhance performance, improve agility, and better align with operational requirements in a cloud setting.

This concept goes beyond merely lifting and shifting applications into the cloud without modification, which would be less efficient in terms of utilizing cloud capabilities. Additionally, while incorporating third-party services and reducing application size are relevant to overall application management strategies, they do not specifically describe the fundamental nature of re-factoring as it pertains to cloud migration. Re-factoring emphasizes rethinking and redesigning the application architecture to take full advantage of what the cloud offers.