Computer Networking. Please answer Asap. Thanks and I will upvote.

Which of the following is an advantage of using a point-to-point link over a shared medium? It can support more devices on the network It is less expensive to implement It does not require each device to have a unique address It provides greater bandwidth to each device In the OSI network layer hierarchy, as the data moves down from the upper to the lower layers, headers are: added modified removed rearranged Which of the following is an example of a physical layer device? Router Hub Switch Repeater Clock recovery is needed to successfully decode both asynchronous and synchronous encodings True False