What is one of the key advantages of using containers

Solution

Containers use a shared operating system kernel to run multiple isolated applications, which reduces the overhead compared to virtual machines that each require their own full OS. This allows containers to be more lightweight, faster to start, and consume fewer resources. They are ideal for microservices and cloud-native applications. Option A is incorrect because while containers provide process-level isolation, VMs offer stronger isolation due to completely separate OS instances. Option C is wrong because containers must share the same OS kernel, meaning they can't run different OSes (unlike VMs which can host different OSes on the same hardware). Option D is incorrect because containers often require orchestration tools (like Kubernetes) for managing large-scale deployments. Option E is incorrect because containers do not rely on hypervisors to function; they are managed through container engines like Docker.