CompTIA Server+ (SK0-005)Server AdministrationMedium
A server administrator needs to quickly deploy a new application that requires a specific version of Python and several libraries, without interfering with other applications or the host operating system's environment. The application also needs to be easily portable between different server environments. Which deployment strategy would best meet these requirements?
- AUtilize containerization technologies like Docker.
- BInstall Python and libraries directly on the host OS.
- CDeploy the application within a virtual machine (VM).
- DCreate a separate user account with a custom environment.
Show answer & explanationAnswer & explanation
Correct answer: A. Utilize containerization technologies like Docker.
Containerization (e.g., Docker) provides an isolated environment for applications and their dependencies, ensuring they don't conflict with the host OS or other applications. Containers are also highly portable, allowing the application to run consistently across different environments.
Why the other options are wrong
- B. Installing dependencies directly on the host OS can lead to dependency conflicts and makes portability difficult.
- C. Deploying in a VM provides isolation but is more resource-intensive and less agile for portability compared to containers.
- D. A separate user account offers some isolation at the user level but does not fully isolate system-level dependencies or provide the same level of portability as containers.
Containerization
A lightweight form of virtualization that packages an application and its dependencies into a single, isolated unit that can run consistently across different computing environments.
- Provides process-level isolation.
- Shares the host OS kernel.
- Faster startup and less overhead than VMs.
Memory trick: Containers Carry Consistent Code