A developer asks the IT team for an environment that can launch dozens of isolated instances of the same Linux-based microservice within seconds, without the memory overhead of running a full guest operating system for each instance. Which characteristic makes containers the most appropriate solution for this request?
Containers rely on a Type 1 hypervisor to provide direct hardware passthrough for peripherals.
They allow software compiled for any CPU architecture to run unmodified on the host platform.
Each container bundles a complete guest OS, giving greater hardware isolation than a virtual machine.
They share the host kernel, so each instance avoids the overhead of a full guest operating system.
Containers use operating-system-level virtualization, meaning each container shares the host's kernel while keeping its own user-space files and processes separate. Because they do not include an entire guest OS, containers start quickly and consume far fewer CPU and RAM resources than traditional virtual machines. Virtual machines (hardware or bare-metal hypervisor based) bundle a full guest OS, increasing overhead and boot times. Containers also do not require a Type 1 hypervisor and cannot natively run applications compiled for a different CPU architecture than the host, which eliminates those choices.
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