m a TCP segment arrives to a host, the socket to which the segment is directed d
ID: 3751774 • Letter: M
Question
m a TCP segment arrives to a host, the socket to which the segment is directed depends on a. b. the destination port number the source port number c. d. the source IP address of the datagram that encapsulated the segment all of the above 19. UDP has which of the following characteristics three-way hand shake for connection establishment regulated send rate connection state at the server none of the above a. b. c. d. 20. When a UDP segment arrives to a host, in order to direct the segment to the appropriate socket, the OS uses the source port number the source IP address the destination port number all of the above a. b. c. d. 21. The stop-and-wait protocol is highly inefficient when when there is a large distance between source and destination and the transmission rate is low when there is a short distance between source and destination and the transmission rate is large when there is a large distance between source and destination and the transmission rate is high when there is a short distance between source and destination and the transmission rate is low a. b. c. d. 22. Pipelining requires which of the following a. sender-side buffering of unacknowledged packets b. transmitting many packets before receiving acknowledgements c. unique sequence numbers for each in-transit packet d. all of the above 23. TCP applies fast retransmit to a segment when a. it receives three ACKs for an earlier segment b. it estimates unusually large RTTs c. the segment's timer expires d. none of the above 24. The ICMP protocolExplanation / Answer
The following are the answers for the above MCQ's:
18. d) all of the above
19. d) none of the above
20. c) the destination port number
21. c) when there is a large distance between source and destination and the transmission rate is highd
22. d) all of the above
23. a) it receives three ACKs for an earlier segment
24. a) runs directly on top of IP
25. b) it discards the frame without sending an error message to the network layer
26. d) all of the above
27. d) all of the above
28. c) the adapter waits until it senses the channel idle and then begins to transmit the frame.
29. a) in the input ports
30. b) encrypt the message with Alice's public key and send Alice the message
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