(a) If any one fragment of an IP datagram is lost, then the entire IP packet is dropped (b) All packets in a TCP connection must follow exactly the same sequence of routers from the source to the destination. (c) Given a MAC address of a host, the Address Resolution Protocol discovers its IP Address. A sliding window protocol with cumulative acknowledgements is used. A receiver has already received and acknowledged packets 1-3. No other packets have been received. If packet 5 is now received, an ACK is sent for packet 5 (d) (a) If any one fragment of an IP datagram is lost, then the entire IP packet is dropped (b) All packets in a TCP connection must follow exactly the same sequence of routers from the source to the destination. (c) Given a MAC address of a host, the Address Resolution Protocol discovers its IP Address. A sliding window protocol with cumulative acknowledgements is used. A receiver has already received and acknowledged packets 1-3. No other packets have been received. If packet 5 is now received, an ACK is sent for packet 5 (d)