actually im really upset with chegg, this is complete question, i got answer only for 7 questions, i dont wanna go with chegg anymore, after the 7 question deduction i need refund Question 12...

a. In this type of network, a central computer (server) usually forms the main node and the subsidiary nodes are connected to it and to each other through a switch o

b.r hub. Advantages: The most reliable because the failure of a node or a node cable does not affect other nodes.

2. The underlying concept behind network redundancy is to provide alternate paths for data to travel along in case a cable is broken or a connector accidentally un-plugged. However, Ethernet as standard cannot have rings or loops in the network as this will cause broadcast storms* and can ultimately cause the network to stop working. An Ethernet network cannot have two paths from point A to point B without a mechanism in place to support this type of topology. To achieve redundancy, the network infrastructure (switches) must support redundancy protocols designed to negate the usual problems of putting loops into an Ethernet network, maintaining a default data path and switching to an alternate one when a fault occurs