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Multiple Choice

Which approach enables transferring isolated applications to multiple environments by packaging them with their dependencies?

Containerization focuses on packaging an application with everything it needs to run—the runtime, libraries, and dependencies—into a self-contained container image. This image can be moved to different environments and run consistently there because a container runtime on the host provides isolation while sharing the host’s kernel. The app stays isolated from other processes and behaves the same across development, testing, and production, which makes transferring isolated applications across environments reliable and predictable. Compared with virtualization, which virtualizes hardware and requires a full operating system per unit, containerization is lighter, faster to start, and more portable since you package only what the app needs rather than an entire OS. Version control tracks code, not deployment artifacts, and continuous integration focuses on building and testing code; containers are the mechanism that makes the deployment artifacts portable and reproducible across environments.

Containerization focuses on packaging an application with everything it needs to run—the runtime, libraries, and dependencies—into a self-contained container image. This image can be moved to different environments and run consistently there because a container runtime on the host provides isolation while sharing the host’s kernel. The app stays isolated from other processes and behaves the same across development, testing, and production, which makes transferring isolated applications across environments reliable and predictable.

Compared with virtualization, which virtualizes hardware and requires a full operating system per unit, containerization is lighter, faster to start, and more portable since you package only what the app needs rather than an entire OS. Version control tracks code, not deployment artifacts, and continuous integration focuses on building and testing code; containers are the mechanism that makes the deployment artifacts portable and reproducible across environments.