Which concept describes creating virtual instances of hardware or resources to improve efficiency and isolation?

Which concept describes creating virtual instances of hardware or resources to improve efficiency and isolation?

• A. Cloud computing
• B. Containerization
• C. Virtualization
• D. Load balancing

Answer: (C)

Creating virtual instances of hardware or resources is virtualization. It lets a single physical machine run multiple virtual machines, each with its own virtual CPU, memory, storage, and network, providing better resource usage and strong isolation between environments. This means you can consolidate servers, move or clone VMs for maintenance, and run different operating systems on the same hardware without them interfering with one another. Containers also provide isolation, but they share the host’s operating system kernel and are generally lighter-weight; they don’t emulate complete hardware like virtualization does. Cloud computing uses virtualization as a underlying mechanism, but the term itself refers to a service model rather than the specific technique of creating virtual hardware. Load balancing, by contrast, distributes traffic and workload and isn’t about creating virtual resources.

Creating virtual instances of hardware or resources is virtualization. It lets a single physical machine run multiple virtual machines, each with its own virtual CPU, memory, storage, and network, providing better resource usage and strong isolation between environments. This means you can consolidate servers, move or clone VMs for maintenance, and run different operating systems on the same hardware without them interfering with one another. Containers also provide isolation, but they share the host’s operating system kernel and are generally lighter-weight; they don’t emulate complete hardware like virtualization does. Cloud computing uses virtualization as a underlying mechanism, but the term itself refers to a service model rather than the specific technique of creating virtual hardware. Load balancing, by contrast, distributes traffic and workload and isn’t about creating virtual resources.