What is a core benefit of Network Function Virtualization (NFV)?

• A. Running network functions on general-purpose hardware, enabling flexible deployment
• B. Replacing IP routing
• C. Replacing all hardware with dedicated appliances
• D. Isolating functions on specialized hardware only

Answer: (A)

NFV is about virtualizing network services so they run as software on standard, general-purpose hardware rather than on dedicated appliances. The big payoff is flexibility: you can deploy, scale, update, and relocate functions like firewalls, load balancers, VPNs, and IDS quickly, across data centers or the cloud, using commodity servers. This reduces vendor lock-in, speeds up service rollout, and makes capacity changes easier because you add or move softwareed functions rather than buying new hardware.

This isn’t about replacing IP routing itself, nor about keeping all functions on specialized hardware or replacing hardware with only dedicated devices. The strength of NFV lies in running multiple network functions on common hardware and orchestrating them as needed, which enables more agile, cost-effective, and scalable networks.