2. Answer true or false? Explain your answer. Credit will not be given without a proper explanation a. Host A is sending Host B a large file over a TCP connection. Assume Host B has no data to send Host A. Host B will not send acknowledgments to Host A because Host B cannot piggyback the acknowledgments on data b. The size of the TCP rwnd may change throughout the duration of the connection. c. The size of the TCP cwnd may change throughout the duration of the connection. d. Suppose Host A is sending Host B a large file over a TCP connection. The number of unacknowledged bytes at A at any time cannot exceed the size of the receive buffer. e. Suppose Host A is sending Host B a large file over a TCP connection. The number of unacknowledged bytes at A at any time cannot exceed the size of the congestion threshold f. Suppose Host A is sending a large file to Host B over a TCP connection. If the sequence number for a segment of this connection is 42, then the sequence number for the subsequent segment may be 4 g. The TCP segment has a field in its header for cwnd. h. Suppose Host A sends one segment with sequence number 56 and 8 bytes of data over a TCP connection to Host B. In this same segment the acknowledgment number is necessarily 64 i. The termination of a TCP connection is always initiated by the client. j. Independently closing each direction of a TCP connection allows fast retransmission to recover any data that may be missing