Which of the following is a lower-layer physical device in the NFV framework?

Which of the following is a lower-layer physical device in the NFV framework?

• A. Storage device
• B. Network device
• C. Server
• D. Air conditioning system

Answer: (A)

In the context of the Network Functions Virtualization (NFV) framework, a lower-layer physical device refers to a component that serves as the foundation for implementing virtualized network functions. Among the options provided, the correct choice is a storage device. Storage devices are crucial for hosting virtualized applications and their corresponding data. In an NFV infrastructure, virtualized network functions (VNFs) require storage for operational data and images. This physical storage underpins the virtualization layer, providing the necessary capacity and performance to support VNFs. While network devices and servers are indeed part of the NFV framework, they are not classified as lower-layer physical devices in the same context as storage appliances. Network devices usually deal with managing and routing network traffic, while servers run the virtual instances of network functions. An air conditioning system, on the other hand, pertains to environmental control and is not a direct component of the NFV architecture. Each of these components plays a role, but the storage device is specifically essential for lower-layer operations and data retention in NFV scenarios.

In the context of the Network Functions Virtualization (NFV) framework, a lower-layer physical device refers to a component that serves as the foundation for implementing virtualized network functions. Among the options provided, the correct choice is a storage device.

Storage devices are crucial for hosting virtualized applications and their corresponding data. In an NFV infrastructure, virtualized network functions (VNFs) require storage for operational data and images. This physical storage underpins the virtualization layer, providing the necessary capacity and performance to support VNFs.

While network devices and servers are indeed part of the NFV framework, they are not classified as lower-layer physical devices in the same context as storage appliances. Network devices usually deal with managing and routing network traffic, while servers run the virtual instances of network functions. An air conditioning system, on the other hand, pertains to environmental control and is not a direct component of the NFV architecture. Each of these components plays a role, but the storage device is specifically essential for lower-layer operations and data retention in NFV scenarios.