q15,q16,q17

Question 15 1 Point All UDP datagrams leaving a local network via a NAT box must have the same: A source IP address B source UDP port number destination IP address D) destination UDP port number Question 16 1 Point Which of the following is considered a feature of TCP protocol? A Point-to-point B Connection-oriented Bi-directional data flow All the above Question 17 1 Point Which of the following fields of the TCP segment is related to the flow control function of the transport layer. A Sequence number B Receive window Check sum ACK number