Which shared operating system makes use of container-based virtualization and allows applications on the same server to share the kernel?

Which shared operating system makes use of container-based virtualization and allows applications on the same server to share the kernel?

• A. Hypervisor
• B. Guest Operating System
• C. Host Operating System
• D. Virtual Network

Answer: (C)

Container-based virtualization relies on a single shared kernel provided by the host operating system. In this setup, multiple containers run on the same server and use the host’s kernel, while each container stays isolated through mechanisms like namespaces and resource controls. Because there isn’t a separate kernel for each container, the host operating system is the component that supplies and manages that shared kernel. This differs from a hypervisor approach, where each virtual machine runs its own guest operating system with its own kernel. A guest operating system refers to the OS inside a VM, not the shared kernel model used by containers. A virtual network is unrelated to how containers share a kernel.

Container-based virtualization relies on a single shared kernel provided by the host operating system. In this setup, multiple containers run on the same server and use the host’s kernel, while each container stays isolated through mechanisms like namespaces and resource controls. Because there isn’t a separate kernel for each container, the host operating system is the component that supplies and manages that shared kernel.

This differs from a hypervisor approach, where each virtual machine runs its own guest operating system with its own kernel. A guest operating system refers to the OS inside a VM, not the shared kernel model used by containers. A virtual network is unrelated to how containers share a kernel.