Final answer:
Rollover cables, used for connecting to a router's console port, typically use RJ-45 connectors on both ends, not BNC connectors. They are used for console or management purposes, not for standard networking connections.
Step-by-step explanation:
Rollover cables, also known as Yost cables, are a type of network cabling used to connect a computer terminal to a router's console port. These cables are not used with BNC connectors; rather, they typically have an RJ-45 connector on both ends. Rollover cables are distinct in the wiring pinouts, where the terminal end of the cable is a mirror or 'rolled over' version of the router's end - hence the name 'rollover'.
These cables are normally used for Cisco equipment, where one end plugs into the console port of the router, and the other end is used to connect to a computer's serial port, though USB to RJ-45 adapters are common now. It is important to note that a rollover cable is not used for typical network connections, instead it is used for console or management purposes on networking devices.
In contrast, the BNC connector, which stands for Bayonet Neill-Concelman, is a type of connector used with coaxial cables in radio, television, and other radio-frequency electronic equipment, but not typically for rollover cables. A more appropriate connector for a rollover cable will include RJ-45 connectors which are common in networking for Ethernet and other data communications applications.