3. As we have learned in class, for Ethernet, if a node detects a transmission while it is transmitting a frame, then: (i) if the node has already transmitted the 64-bit preamble, the host stops transmitting the frame and sends a 32-bit jamming sequence; (ii) else the node finishes transmitting the 64-bit preamble and then sends a 32-bit jamming sequence. Suppose the packets are 512 bits long, which is the mimimum length allowed Nodes A and B are the only active nodess on a 10 Mbps Ethernet and the propagation time between them is 20 us, or 200 bit durations. Suppose A begins transmitting a frane at time I = 0, and just before the beginning of the frame reaches B, B begins sending a frame, and then almost immediately B detects a collision . Does A finish transmitting the frame before it detects that there was a collision? What time does A finish sending the jamming signal? What time does B finish sending the jamming signal? What time does A hear an idle channel again? What time does B first hear an idle channel again? 3. As we have learned in class, for Ethernet, if a node detects a transmission while it is transmitting a frame, then: (i) if the node has already transmitted the 64-bit preamble, the host stops transmitting the frame and sends a 32-bit jamming sequence; (ii) else the node finishes transmitting the 64-bit preamble and then sends a 32-bit jamming sequence. Suppose the packets are 512 bits long, which is the mimimum length allowed Nodes A and B are the only active nodess on a 10 Mbps Ethernet and the propagation time between them is 20 us, or 200 bit durations. Suppose A begins transmitting a frane at time I = 0, and just before the beginning of the frame reaches B, B begins sending a frame, and then almost immediately B detects a collision . Does A finish transmitting the frame before it detects that there was a collision? What time does A finish sending the jamming signal? What time does B finish sending the jamming signal? What time does A hear an idle channel again? What time does B first hear an idle channel again