here are three universities connected through wireless media and wired media. These universities exchange audio, video and text messages to each other. In addition, the communication media have never...

here are three universities connected through wireless media and wired media. These universities exchange audio, video and text messages to each other. In addition, the communication media have never get downed because each university has been connected more than one communication link. Dear students, what type of topology has been implemented to avoid connection failure/down for better connectivity. Explain with justified reasons. (Data communications)