Which of the following are functions of layer 2 switches? Select 0,1, or more than 1 response" O Learn IP addresses by inspecting the source address of incoming packets. Send frames out to physical interface(s), after looking up the frame's destination address in the switch's CAM table. O Prevent loops caused by redundant links between switches. Map IP addresses to physical ports on the switch Keep track of paths to route IP traffic using standard routing protocols Assign IP addresses to connected host machines