In TCP flow control, the size of the Receive Buffer is 512 bytes and that of the Sending Buffer is 768 bytes. The values of the various pointers are as follows: LastByte Read=384 LastByte Acked=468 Last Bytesent=612 LastByteWritten=724. Draw the schematics of the two buffers with all the pointers marked What are the sizes of rwnd and swind? Is it safe for the sender to send immediately all the bytes written by the sending application? Justify your