CompTIA Server+ (SK0-005)Server AdministrationMedium
A server administrator is deploying a new web application that requires a specific version of Node.js and several unique library dependencies. The application needs to be isolated from other applications on the same server to prevent dependency conflicts. Which deployment strategy would BEST meet these requirements while optimizing resource utilization?
- ADeploying the application directly on the host OS alongside other applications.
- BDeploying the application using containerization technology like Docker.
- CDeploying the application within a dedicated virtual machine (VM).
- DDeploying the application on a separate physical server.
Show answer & explanationAnswer & explanation
Correct answer: B. Deploying the application using containerization technology like Docker.
Containerization (e.g., Docker) allows applications and their dependencies to be packaged into isolated units. This prevents dependency conflicts, offers better resource utilization than VMs, and provides portability, making it ideal for this scenario.
Why the other options are wrong
- A. Deploying directly on the host OS would lead to dependency conflicts and lack isolation.
- C. A dedicated VM would provide isolation but would consume more resources (e.g., RAM, CPU) than necessary for a single application, making it less optimal for resource utilization.
- D. Deploying on a separate physical server provides isolation but is the least cost-effective and resource-efficient option for a single application.
Containerization
A lightweight virtualization technology that packages an application and its dependencies into a standalone, executable unit.
- Provides process-level isolation.
- Shares the host OS kernel.
- Efficient resource utilization compared to VMs.
Memory trick: Containers are like individual apartments in one building.