Which technology creates isolated environments on a single operating system and is often discussed in contrast to traditional virtualization?

Which technology creates isolated environments on a single operating system and is often discussed in contrast to traditional virtualization?

• A. Containers
• B. Hypervisor
• C. Bare-Metal
• D. RAID

Answer: (A)

Containers create isolated environments on a single operating system and are often discussed in contrast to traditional virtualization. They package an application with its dependencies into a container image and run it as isolated processes that share the host's OS kernel. This isolation uses features like namespaces and cgroups to separate runtime resources, networks, and filesystem views, but without booting a separate OS for each environment. That makes containers lightweight, fast to start, and highly portable across systems that share the same kernel. Traditional virtualization uses a hypervisor to run full guest operating systems on top of hardware, which provides stronger isolation but adds more overhead and slower startup. Bare-metal means running directly on hardware, and RAID is a storage redundancy/striping technique. So containers best fit the description of isolated environments on a single OS.

Containers create isolated environments on a single operating system and are often discussed in contrast to traditional virtualization. They package an application with its dependencies into a container image and run it as isolated processes that share the host's OS kernel. This isolation uses features like namespaces and cgroups to separate runtime resources, networks, and filesystem views, but without booting a separate OS for each environment. That makes containers lightweight, fast to start, and highly portable across systems that share the same kernel. Traditional virtualization uses a hypervisor to run full guest operating systems on top of hardware, which provides stronger isolation but adds more overhead and slower startup. Bare-metal means running directly on hardware, and RAID is a storage redundancy/striping technique. So containers best fit the description of isolated environments on a single OS.