**Professional competence:** The students:
- Identify the layers of the ISO/OSI model
- Recognise the main concepts and algorithms of each IOS/OSI layer
- Assign technical processes to the layers
- Classify new technologies to the main concepts of the ISO/OSI model - Compare different methods and approaches of a layer (i.e. TCP and UDP)
- Characterise safety-critical aspects of each layer

**Methodological competence:** The students:
- Administer small networks
- Characterise safety-critical aspects of networks

**Social competence:** The students: 
- work on exercises in small teams

**Self-competence:** The students:

- accept criticism
- reflect on their proposed solutions, taking into account the methods taught

Contents of this lecture (cf. suggested reading Tanenbaum and Wetherall):
- Introduction to networks and the internet
- Physical Layer
- Data Link Layer - MAC Sub-Layer
- Network Layer
- Transport Layer
- Session Layer
- Presentation Layer
- Application Layer - Technologies (Cable and Co)
- Nyquist Shannon and Transmissions - CDMA
- Hamming & CRC - Stop & wait, go back n, selective repeat
- Aloha & CSMA
- Ethernet technologies
- Wifi
- Paket switchen & Dijsktra
- IP Adressing & Header
- TCP - UDP
- Buckets & TCP-Reno
- DNS
- Flask
- RSA & PGP
- Firewalls

- lecture notes - A. Tanenbaum & D. Wetherall: Computernetzwerke, Pearson Studiu, 5. Aufl. 2012

http://einstein.informatik.uni-oldenburg.de/20902.html

At the end of the lecture period

Written or oral exam