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Computer Networks (WS1718)

Computernetze kompakt Cover 3. Auflage  

Computer networks allow to connect individual computers systems for communication and resource sharing. Communication via computer networks is realized via different protocols of different layers of reference models (OSI reference model, TCP/IP reference model, hybrid reference model).

At the beginning of the course, an introduction to the required fundamentals of the computer sciences and computer networks takes place. Next, the protocols and their classification into established reference models is discussed. The main focus of the course is to explain the way, the data is transmitted through the different protocol layers and via different transmission media.

The course (lectures, exercises and exam) is held in English language. All slide sets and exercise sheets are available in English and in German language. The content of the English and German slide sets and exercise sheets is identical. A list of technical terms provides this page.

The slide sets are the basis for the third edition of the German-language book Computernetze kompakt, which was published in September 2015 by Springer Vieweg. ISBN: 978-3-662-46931-6

This page is outdated!

Updated and improved lecture materials can be found on the web page of the course Computer Networks in winter term 2018/2019.

Schedule of the Course

Date Time Room Event Class Topics
18.10.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 1 (slides 1-32)
25.10.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 1 (slides 33-49) + slide set 2 (slides 1-12)
01.11.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 2 (slides 13-42)
08.11.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 2 (slides 43-52) + slide set 3 + slide set 4 (slides 1-20)
15.11.2017         This lecture cannot take place due to a continuing education seminar in Fulda.
22.11.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 4 (slides 21-29) + slide set 5 (slides 1-17)
29.11.2017         This lecture cannot take place due to the Hochschultag "Dialog Lehre".
06.12.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 5 (slides 18-38) + slide set 6 (slides 1-9)
13.12.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 6 (slides 10-36) + slide set 7 (slides 1-9)
20.12.2017 11:45-13:15 1-131 Lecture I3a Discussion of slide set 7 (slides 10-42)
27.12.2017         Christmas break
02.01.2018         Christmas break
10.01.2018 11:45-13:15 1-131 Lecture I3a Discussion of slide set 7 (slides 43-50) + slide set 8 (slides 1-29)
17.01.2018 11:45-13:15 1-131 Lecture I3a Discussion of slide set 8 (slides 30-58) + slide set 9 (slides 1-14)
24.01.2018 11:45-13:15 1-131 Lecture I3a This lecture must be cancelled by reason of an accident.
31.01.2018 11:45-13:15 1-131 Lecture I3a This lecture cannot take place due to illness.
07.02.2018 11:45-13:15 1-131 Lecture I3a Discussion of slide set 9 (slides 15-49)
23.02.2018 10:00-11:30 9-30[1-4] Exam I3a The exam covers all discussed slide sets and exercise sheets
25.05.2018 16:00-17:30 BCN 331 Exam I3a The exam covers all discussed slide sets and exercise sheets

Slide Sets

  • The slides 49-52 "fiber-optic cables" of slide set 2 will not be discussed in class and are not relevant for the exam in WS1718 and SS2018
  • The slides 11-41 "encoding data with line codes" of slide set 3 will not be discussed in class and are not relevant for the exam in WS1718 and SS2018
  • The slides 39-56 "Flow Control in the Data Link Layer" of slide set 5 have been erased from the slide set and are not relevant for the exam in WS1718 and SS2018
  • The slides 32-37 of slide set 8, which explain the routing protocol "OSPF" in detail, have been erased from the slide set and are not relevant for the exam in WS1718 and SS2018
  • The slide sets 11-13 are not relevant for the exam
  • The slide set 10 was not discussed in class because time was too short and is not relevant for the exam in WS1718 and SS2018

  Slide sets Topics
Slide set 1 Slide set 1 in English language Slide set 1 in German language Organisational information, fundamentals of computer networks, protocols and reference models
Slide set 2 Slide set 2 in English language Slide set 2 in German language Physical layer (part 1)
Slide set 3 Slide set 3 in English language Slide set 3 in German language Physical layer (part 2)
Slide set 4 Slide set 4 in English language Slide set 4 in German language Data Link layer (part 1)
Slide set 5 Slide set 5 in English language Slide set 5 in German language Data Link layer (part 2)
Slide set 6 Slide set 6 in English language Slide set 6 in German language Data Link layer (part 3)
Slide set 7 Slide set 7 in English language Slide set 7 in German language Network layer (part 1)
Slide set 8 Slide set 8 in English language Slide set 8 in German language Network layer (part 2)
Slide set 9 Slide set 9 in English language Slide set 9 in German language Transport layer
Slide set 10 Slide set 10 in English language Slide set 10 in German language Application layer
Slide set 11   Slide set 11 in German language Cryptography (fundamentals, symmetric key cryptography)
Slide set 12   Slide set 12 in German language Cryptography (asymmetric key cryptography, key exchange, hash functions)
Slide set 13   Slide set 13 in German language Steganography, copyright traps and digital watermarking

Exercise Sheets

  • The exercises 5+6 "line codes" of exercise sheet 2 are not relevant for the exam in WS1718 and SS2018
  • The exercises 11+12 "flow control in the Data Link Layer" of exercise sheet 3 are not relevant for the exam in WS1718 and SS2018
  • The exercise 12 "Checksums in IP Packets" of exercise sheet 4 is not relevant for the exam in WS1718 and SS2018
  • The exercise 15 "Bellman-Ford Algorithm" of exercise sheet 4 is not relevant for the exam in WS1718 and SS2018
  • Exercise sheet 6 is not relevant for the exam

  Exercise sheets Topics Solutions
Exercise sheet 1 Exercise Sheet 1 in English language Exercise Sheet 1 in German language Topics of slide set 1 Solution of Exercise Sheet 1 in English language  
Exercise sheet 2 Exercise Sheet 2 in English language Exercise Sheet 2 in German language Topics of slide set 2 + 3 Solution of Exercise Sheet 2 in English language  
Exercise sheet 3 Exercise Sheet 3 in English language Exercise Sheet 3 in German language Topics of slide set 4 + 5 + 6 Solution of Exercise Sheet 3 in English language  
Exercise sheet 4 Exercise Sheet 4 in English language Exercise Sheet 4 in German language Topics of slide set 7 + 8 Solution of Exercise Sheet 4 in English language  
Exercise sheet 5 Exercise Sheet 5 in English language Exercise Sheet 5 in German language Topics of slide set 9 + 10 Solution of Exercise Sheet 5 in English language  
Exercise sheet 6   Exercise Sheet 6 in German language Topics of slide set 11 + 12 + 13    

Lab Exercise Sheets

At least 25% of the points, which can be reached in the exam of SS2018, will refer to the lab exercise sheets. To pass the exam, you will need 50% of the achievable points. So please try in your own interest to solve the laboratory tasks.

  Lab Exercise sheets Topics
Lab Exercise sheet 1 Lab Exercise Sheet 1 in English language Deploy a test environment, first steps with Wireshark, reference models, DHCP, DNS, ping, traceroute
Lab Exercise sheet 2 Lab Exercise Sheet 2 in English language Configuration of a complex virtual infrastructure, IP forwarding, analysis of ARP and ICMP with Wireshark
Lab Exercise sheet 3 Lab Exercise Sheet 3 in English language Configuration of a DHCP server and name server, configuration of web server cluster with load balancing, analysis of HTTP network traffic with Wireshark

Exams

Semester Exams Time limit University Sample solutions
WS1718 Klausur vom WS1718 in englischer Sprache   90 Minutes Frankfurt UAS Lösung der Klausur vom WS1718 in englischer Sprache  
SS2017 Klausur vom SS2017 in englischer Sprache Klausur vom SS2017 in deutscher Sprache 90 Minutes Frankfurt UAS Lösung der Klausur vom SS2017 in englischer Sprache Lösung der Klausur vom SS2017 in deutscher Sprache
WS1617 Klausur vom WS1617 in englischer Sprache   90 Minutes Frankfurt UAS Lösung der Klausur vom WS1617 in englischer Sprache  
SS2016 Klausur vom SS2016 in englischer Sprache Klausur vom SS2016 in deutscher Sprache 90 Minutes Frankfurt UAS Lösung der Klausur vom SS2016 in englischer Sprache Lösung der Klausur vom SS2016 in deutscher Sprache
WS1516 Klausur vom WS1516 in englischer Sprache Klausur vom WS1516 in deutscher Sprache 90 Minutes Frankfurt UAS   Lösung der Klausur vom WS1516 in deutscher Sprache
SS2015   Klausur vom SS2015 in deutscher Sprache 90 Minutes Frankfurt UAS   Lösung der Klausur vom SS2015 in deutscher Sprache
WS1415   Klausur vom WS1415 in deutscher Sprache 90 Minutes FH Frankfurt   Lösung der Klausur vom WS1415 in deutscher Sprache
SS2014 Klausur vom SS2014 in englischer Sprache Klausur vom SS2014 in deutscher Sprache 90 Minutes FH Frankfurt Lösung der Klausur vom SS2014 in englischer Sprache  
WS1314 Klausur vom WS1314 in englischer Sprache Klausur vom WS1314 in deutscher Sprache 90 Minutes FH Frankfurt Lösung der Klausur vom WS1314 in englischer Sprache  
SS2012   Klausur vom SS2012 in deutscher Sprache 90 Minutes HS Darmstadt   Lösung Klausur vom SS2012 in deutscher Sprache

Exam Results

Result of the written examination in SS2018
Result of the written examination in WS1718

Contact

The best way to reach me is via email: christianbaun@fb2.fra-uas.de

Prof. Dr. Christian Baun
 Frankfurt University of Applied Sciences
 (1971-2014: Fachhochschule Frankfurt am Main)
 Faculty of Computer Science and Engineering
 Last updated: June 4th 2018 		zur Homepage der Frankfurt University of Applied Sciences