精选优质文档-倾情为你奉上Chapter 4 Network Layer1.Packetizing at the network layer involvesA)Encapsulating the payload at the sourceB)Adds a header that contains the source and destination informationC)Decapsulating the payload at the destinationD)All of the choices are correct2.Routers in the path are not allowed to _.A)fragment the packet they receiveB)decapsulate the packetC)change source or destination addressD)All of the choices ar
