What is placed on the top of one physical server and host operating system, and share the operating system kernel binaries and libraries, thereby reducing the need for reproducing the OS?

• A. Containers
• B. Virtualization
• C. Cloud Auditor
• D. Cloud Provider

Answer: (A)

Containers provide OS-level virtualization by running applications in isolated user spaces on a single host operating system. They share the host’s kernel binaries and libraries, so each container doesn’t need its own full OS. This dramatically reduces the amount of OS duplication across multiple workloads on one physical server, making them lightweight and quick to start. In contrast, virtualization would involve separate virtual machines with their own kernels, which isn’t what this description describes. So the scenario described fits containers best.