Nodes are defined as any physical devices that can transmit data and receive them in a network. Thus from the options in the question, only fax, printer, and workstations have these abilities.
Twisted-pair cables are a form of electrical wiring used to improve electromagnetic compatibility. NIC stands for network interface controller which is a computer hardware component that helps connect a computer to a network. NOC stands for network operations center which refers to a location where network management is centered.
