Exemplary methods, apparatuses, and systems receive a copy of or make a copy of one or more packets of a flow of packets between a source and a destination. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. In one embodiment, the generating of pseudo-random numbers using linear feedback shift registers is accomplished by periodically switching between iterative outputs generated by multiple linear feedback shift registers. The cover member is connectable to the bottom member for movement between a closed position and an open position, and includes a covering portion for covering the actuating member in the closed position, and a second holding portion adapted to abut the first holding portion in the closed position.