Answer Happy

[5 points] Stop and wait algorithm has higher performance when it is compared to Go Back N algorithm Select one: : True False
[5 points] In the sender can have up to N unacknowledged packets in pipeline? a. Go-Back-N b. Go-Back-N and Selective Repeat C. Selective Repeat d. Stop-and-Wait, Go-Back-N, and Selective Repeat
[5 points) Which protocol is probably used by the sender and the receiver in the below figure (pkt: packet, ack: acknowledgment)? receiver sender send pkto send pkt1 send pkt2 send pkt3 (wait) send acko send ack1 Xloss send ack1 a. Stop-and-Wait b. Selective Repeat C. Difficult to tell O d. Go-Back-N
[5 points] Transport layer provides: Select one: a. Provide physical communication between app processes running on different processes O b. Provide logical communication between app processes running on different hosts C. Provide logical communication between app processes running on different processes d. Provide physical communication between app processes running on different hosts
[5 points) The ACK and SYN bits of a TCP segment headers are used during: a. Receiving wrong segment headers b. Data exchange C. Connection establishment d. Connection close
[5 points] The server at connection oriented demultiplexing accepts all requests: Select one: a. At the same socket O b b. At different sockets c. Both of the above d. None of the above
[5 points] In TCP, during the phase, the congestion window (cwnd) grows additively until a congestion is detected. a. Congestion avoidance O b. Network-assisted c. Slow start d. Congestion detection
[5 points] DNS uses as its underlying transport layer protocol: a. TCP b. SNMP C. UDP O d. None of the mentioned