Final answer:
Jabber occurs when a NIC transmits continuously without sending valid data, leading to potential network issues that must be addressed by administrators.
Step-by-step explanation:
When a Network Interface Card (NIC) transmits continuously but does not send valid data, this is known as a jabber. This condition can be caused by hardware failure, software bugs, or incorrect network configurations. It results in network traffic that occupies the network needlessly and can cause performance issues or even network failure if not addressed.
Network administrators need to troubleshoot this situation quickly to maintain network integrity and performance.
The phenomenon described in the question is called carrier sense. Carrier sense occurs when a network interface card (NIC) continuously transmits signals over a network, but the transmitted data is not valid or does not have a destination. This can happen when there is a problem with the connection or when the NIC is malfunctioning.