/ What is a PDU? a) corruption of a frame during transmission b) data reassembled at the destination c) retransmitted packets due to lost communication d) a layer specific encapsulation 2/ What is the primary purpose of Layer 4 port assignment? a) to identify devices on the local media b) to identify the hops between source and destination c) to identify to the intermediary devices the best path through the network d) to identify the source and destination end devices that are communicating e) to identify the processes or services that are communicating within the end devices.
