True or false? a. Host A is sending Host B a large file over a TCP connection. Assume Host B has no data to send

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True or false?
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 never changes throughout the duration of the connection .
c. Suppose Host A is sending Host B a large file over a TCP connection. The number of unacknowledged bytes that A sends cannot exceed the size of the receive buffer.
d. 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 m, then the sequence number for the subsequent segment will necessarily be m + I.
e. The TCP segment has a field in its header for rwnd.
f. Suppose that the last Sample RTT in a TCP connection is equal to I sec. The Current value of Timeoutlnterval for the connection will necessarily be ≥ 1 sec.
g. Suppose Host A sends one segment with sequence number 38 and 4 bytes of data over a TCP connection to Host B. In this same segment the acknowledgment number is necessarily 42.