Nov 28, 2012 ... Of course you should expect other, new questions on the midterms and exam.
Exercise Group 1 – Internet Routing. Subject. Forouzan, ed.
Version 2.3 2012-11-28
Selected Exercises
ETSF10/ETSF05 (part 2) Internet Protocols
Here is a list of selected review questions and exercises from the textbook that will be used in the exercises during the course. Some of these questions and exercises will also be used for the midterms and the final exam, either as they are or somewhat modified. Of course you should expect other, new questions on the midterms and exam.
Exercise Group
Internet Routing
Subject
Forouzan, ed. 4, Practice Set
Forouzan, ed. 5, Practice Set
Router architecture
Ch8: 5, 17
Q8: 5 P8: 3a, 5
Unicast routing protocols
Ch22: 7, 10, 12, 24, 27, 29
Q20: 2, 5-9, 11-15 P20: 2-3
Forwarding process
Ch22: 15-19
P18: 12, 15
Multicast routing, IGMP
Ch21: 22-23, 25-26
Q21: 7, 13 P21: 4, 7
Exercise Group
Transport Layer Protocols
Subject
Forouzan, ed. 4, Practice Set
Forouzan, ed. 5, Practice Set
Process-to-process delivery, TCP
Ch23: 9, 11, 12, 17-22, 24, 26-31
Q24: 1, 7, 9, 11, 14, 15, 23, 27 P24: 1, 15, 19, 27, 32-34, 40, 42
Network performance
Ch3: 45-48
P3: 1, 16, 32, 33
Congestion control, QoS
Ch24: 1, 4, 7, 8, 11, 19, 20
P30: 1, 3, 6, 7, 9-12
Real-time audio/video, RTP/RTCP
Ch29: 1, 5, 11, 13, 14, 16, 17, 19
Q28: 7, 10, 14, 20, 29, 35, 44, 47 P28: 18, 23, 25
Exercise Group
Network Layer Protocols
Subject
Forouzan, ed. 4, Practice Set
Forouzan, ed. 5, Practice Set
IPv4, IPv6, transition from IPv4 to IPv6
Ch19: 19, 21, 23, 25, 27, 29, 31, 33, 37 Ch20: 7, 9, 11, 17, 19, 23
Q18: 4, 7, 11; P18: 1, 5, 9, 14, 20, 23 Q19: 5, 12; P19: 4, 10, 13 Q22: 3, 5, 7, 9; P22: 6, 9, 13, 15, 18
ICMPv4, ICMPv6, ARP
Ch21: 1, 2, 5, 9, 11, 13, 17, 19, 20
Q19: 7 Q22: 13
DHCP, DNS
Ch25: 1, 5, 9, 20
P18: 4, 7 Q26: 22
Wireless LAN
Ch14: 1, 4, 5, 11
Q15: 4, 7, 9 P15: 1, 2, 5, 7, 12, 19
Further Resources Solutions to the odd-numbered questions and problems can be found on the textbook’s website. On these pages, you can even find multiple choice questions and other study material. http://highered.mcgraw-hill.com/sites/0072967757/information_center_view0 edition 4 http://highered.mcgraw-hill.com/sites/0073376221/information_center_view0 edition 5
Another source for your studies is previous years’ final exams: http://www.eit.lth.se/fileadmin/eit/courses/etsf10/exams/ETSF10-exam-20111219-final-A.pdf http://www.eit.lth.se/fileadmin/eit/courses/etsf10/exams/ETSF10_FinalExam_part-A_2010-12-17_with_answers_final.pdf
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Version 2.3 2012-11-28
Selected Exercises
ETSF10/ETSF05 (part 2) Internet Protocols
ERRATA Forouzan, ed.4, Student Solutions to Practice Sets (PDF files on the book’s website) Subject
Question
Error / correction
Process-to-process delivery, TCP
23.21
The packet never reaches the TCP layer. It is dropped at either the MAC or the IP layer.
Real-time interactive audio/video
29.11
The packets left are wrong. They should be: (a) 3; (b) 3; (c) 3; (d) 1. You can find the erratum to this question on our exercises page.
29.13
Timestamps are a feature of RTP, not UDP.
20.11
Checksum has to be recalculated, too, whenever one of these fields change.
20.23
In the question, the 4 digits for flags and fragmentation need to be swapped with the 4 digits for checksum in order to match the given solution.
IPv4, IPv6, transition from IPv4 to IPv6
Forouzan, ed.5, Student Solutions to Practice Sets (PDF files on the book’s website) The following questions’ correct answer is given under the wrong question number; here’s the mapping to the answers. Subject
Question
Error / correction
Unicast routing protocols
Q20
5 7
P20
3 17
Q21
13 5
P21
7 5
Q24 P24
Multicast routing, IGMP Process-to-process delivery, TCP Network performance
7 9
9 19
11 17
15 3
1 31
7 5
9 29
11 1
15 11
1 13
15 31
19 3
27 23
33 5
1 31
Also, the answer is based on incorrect bit rates.
P30
1 3
3 1
7 5
Q28
7 37
29 23
35 29
P28
23 21
P18
1 21
5 7
9 23
P19
13 1
Q22
5 9
9 1
P22
9 11
13 3
Q19
7 11
Q22
13 15
Q15
7 3
9 11
P15
1 5
5 21
P3
Congestion control, QoS Real-time audio/video, RTP/RTCP IPv4, IPv6, transition from v4 to v6
ICMPv4, ICMPv6, ARP Wireless LAN
23 9
9 7
11 9
23 19
15 7
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