25. UDP, which option is wrong? Cui Cui plus A. connection establishment (RTT delay) B. no connection state at sender, receiver C. small header size D. no congestion control 26.For calculating UDP checksum, if 3 and 7 were transmitted and receiver-computed Checksum was 11: A. no checksum error B. checksum error C. parity error D complement error 27. Consider Go-Back-N, sender window (N=3) and the second packet was lost: A. send acko, send ack1, receive pkt2, discard, (re)send ack1 B. send acko, send ack1, receive pkt3, discard, (re)send ack 1 C. send acko, discard pkt 1 D send acko, discard pkt2 28.connection management of TCP segment does not have: A. RST B. SYN C. CE D. FIN 29.Free buffer space: A. RevBuffer B. rwnd C. FrBuffer D. Fwnd :The TCP rate depends on TCP . 30 A. cwnd bytes and RTT B. LastByteSent and LastByteAcked C. Wmax D. rwnd bytes and RTT 31. Which one is wrong? A. ToS field indicate congestion B. destination sets ECE bit on ACK segment to notify sender of congestion C. if K TCP sessions share same bottleneck link of bandwidth R, each should have average rate of R/K D. BBR deployed on Google's (external) backbone network 32. Quick UDP Internet Connections, which one is wrong?* A. Reliability B. Congestion control C. Priority D. Crypto state 33.encapsulates segments into datagrams, passes to link layer: A receiver B. sender C routers D. hosts .34 It's not as a service for a flow of datagrams: A. in-order datagram delivery B. guaranteed minimum bandwidth to flow C. restrictions on changes in inter-packet spacing D. distributed services 2ETNAM mod fan 25. UDP, which option is wrong? Cui Cui plus A. connection establishment (RTT delay) B. no connection state at sender, receiver C. small header size D. no congestion control 26.For calculating UDP checksum, if 3 and 7 were transmitted and receiver-computed Checksum was 11: A. no checksum error B. checksum error C. parity error D complement error 27. Consider Go-Back-N, sender window (N=3) and the second packet was lost: A. send acko, send ack1, receive pkt2, discard, (re)send ack1 B. send acko, send ack1, receive pkt3, discard, (re)send ack 1 C. send acko, discard pkt 1 D send acko, discard pkt2 28.connection management of TCP segment does not have: A. RST B. SYN C. CE D. FIN 29.Free buffer space: A. RevBuffer B. rwnd C. FrBuffer D. Fwnd :The TCP rate depends on TCP . 30 A. cwnd bytes and RTT B. LastByteSent and LastByteAcked C. Wmax D. rwnd bytes and RTT 31. Which one is wrong? A. ToS field indicate congestion B. destination sets ECE bit on ACK segment to notify sender of congestion C. if K TCP sessions share same bottleneck link of bandwidth R, each should have average rate of R/K D. BBR deployed on Google's (external) backbone network 32. Quick UDP Internet Connections, which one is wrong?* A. Reliability B. Congestion control C. Priority D. Crypto state 33.encapsulates segments into datagrams, passes to link layer: A receiver B. sender C routers D. hosts .34 It's not as a service for a flow of datagrams: A. in-order datagram delivery B. guaranteed minimum bandwidth to flow C. restrictions on changes in inter-packet spacing D. distributed services 2ETNAM mod fan