Which term denotes a software-based function in the SD-WAN architecture?

Get ready for the MEF SD-WAN Exam. Prepare with flashcards and multiple choice questions, each offering hints and detailed explanations. Ace your test with confidence!

Multiple Choice

Which term denotes a software-based function in the SD-WAN architecture?

Explanation:
In SD-WAN, the functions that run as software on general-purpose hardware are called VNFs. This reflects the virtualized approach where network services like routing, firewall, or VPN run in software, often inside virtual machines or containers, and are orchestrated and managed centrally. So, a VNF denotes a software-based function within the SD-WAN architecture. The other terms don’t capture that software-centric idea. A physical network function (PNF) refers to a hardware-based appliance. The user-network interface (UNI) is simply the boundary between the user and the network. SWVC isn’t the standard term used to describe a software-based network function in this context.

In SD-WAN, the functions that run as software on general-purpose hardware are called VNFs. This reflects the virtualized approach where network services like routing, firewall, or VPN run in software, often inside virtual machines or containers, and are orchestrated and managed centrally. So, a VNF denotes a software-based function within the SD-WAN architecture.

The other terms don’t capture that software-centric idea. A physical network function (PNF) refers to a hardware-based appliance. The user-network interface (UNI) is simply the boundary between the user and the network. SWVC isn’t the standard term used to describe a software-based network function in this context.

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