Final answer:
Nodes and servers have different functions. Wi-Fi stands for Wireless Fidelity. Network cards physically attach a computer to a network. WAN stands for Wide Area Network. In a Client-Server network, there is a central server. Extranet refers to a network that allows access to external parties.
Step-by-step explanation:
Nodes and servers do not have the same function. Nodes are devices connected to a network, while servers are powerful computers that provide services and resources to other devices on the network. For example, a server can host a website or store files that can be accessed by other devices. So the statement is False.
Wi-Fi stands for Wireless Fidelity. It is a technology that allows devices to connect to a network wirelessly, using radio waves. So the statement is True.
Network cards, also known as network adapters, are used to physically attach a computer to a network. They provide the necessary hardware interface for the computer to connect to the network and transmit/receive data. So the statement is True.
WAN stands for Wide Area Network. It refers to a network that covers a large geographical area, such as multiple cities or even countries. So the statement is True.
In a Client-Server network, there is a central server that provides services and resources to client devices. Clients, such as desktop computers or smartphones, request services from the server, which then responds to those requests. So the statement is False.
An extranet refers to a computer network that is restricted to an organization but allows access to external parties such as business partners or customers. It provides a secure and controlled way to share information and collaborate with external entities. So the statement is False.