Suppose nodes D, E, F and G each attach to the same broadcast LAN (through their network adapters). a) If F sends thousands of packets (datagrams) to G with each encapsulating frame addressed to the MAC address of G, will D and E's adapters check these frames? [2 marks] b) If so, will D and E's adapters pass the datagrams in these frames to the respective network layers of D and E? [2 marks] c) How would your answer to (b) change if F sends frames with the broadcast MAC address? [3 marks] d) How many possible MAC addresses are there in the whole world)? [3 marks]