Where is the bus topology commonly found this day?

Answer 1

The answer to this question is surprisingly easy! Cable internet (e.g. Comcast) is a current day example of a bus network. All the users for one segment of the network reside on a shared line. A t-style connection is made from this main feed line to each users home. Don't misunderstand that the actual backbone of the cable network is NOT the same as a traditional bus network. Nor does the local loop portion suffer from all of the same problems a bus network of the past did. For example in a traditional bus network, if you disconnected a workstation connection (without adding a terminator) that entire segment of the network would go down. That obviously is not the case with cable. If you unplug the cable from your modem (csu/dsu) your entire neighborhood does not go offline! All that said; Cable is the closest thing logically/physically to a bus network that is still functionally implemented today. A bus network could also still be found in the traditional sense with an as400 system however this is likely not newly implemented anymore. These services would ride on cat-5 to standard PC rather than to a "dumb-terminal". There are however still Bus/Mainframe networks in existence from back in the day believe it or not.

Answer 2

Bus topology is used on a LAN, or a Local Area Network. It is the cable to which the nodes connect, and it is also known as a backbone.