Look at the following figure, and answer questions. A) At the time point marked by "1", the sender (will / will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above 2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not? B) At the time point marked by "2", the sender (will /will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above 2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not? C) At the time point marked by "3", the sender (will / will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above 2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not? Go-Back-N in action sender receiver 012345678 012345678 012345678 012345678 send pkt0 send pkt1 send pkt2 send pkt3 (wait) receive pkt0, send acko receive plt1, send ack1 receive pkt3, discard, (re)send ackl rcv ack0, send pkt45 12345678 2345678 rcv ack1, send pkt5 receive pkt4, discard, (re)send ackl receive pkt5, discard, (re)send ackl pit 2 timeout -X TOET

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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12
Look at the following figure, and answer questions.
A) At the time point marked by "1", the sender (will / will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above
2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not?
B) At the time point marked by "2", the sender (will /will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above
2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not?
C) At the time point marked by "3", the sender (will / will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the
above 2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not?
Go-Back-N in action
sender window (N=4)
sender
receiver
send pkt0
send pkt1
012345678
012345678
012345678
012345678
send pkt2
send pkt3
(wait)
receive pkt0, send ack0
receive pkt1, send ack1
receive pkt3, discard,
(re)send ack1
rcv ack0, send pkt4
012345678
012345678
rcv ack1, send pkt5
receive pkt4, discard,
(re)send ack1
receive pkt5, discard,
(re)send ack1
2
pkt 2 timeout
3
Xloss
loss
Transcribed Image Text:12 Look at the following figure, and answer questions. A) At the time point marked by "1", the sender (will / will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above 2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not? B) At the time point marked by "2", the sender (will /will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above 2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not? C) At the time point marked by "3", the sender (will / will not) sends a packet(s). The sender (will / will not) slides the sender window. Provide your choice of will/won't in the above 2 blanks. If you chose "the sender will send packets", what is/are the packet(s) being sent? If you chose "will not", why not? Go-Back-N in action sender window (N=4) sender receiver send pkt0 send pkt1 012345678 012345678 012345678 012345678 send pkt2 send pkt3 (wait) receive pkt0, send ack0 receive pkt1, send ack1 receive pkt3, discard, (re)send ack1 rcv ack0, send pkt4 012345678 012345678 rcv ack1, send pkt5 receive pkt4, discard, (re)send ack1 receive pkt5, discard, (re)send ack1 2 pkt 2 timeout 3 Xloss loss
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