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The Coursera course titled ‘Netzwerktechnik Grundlagen – OSI Modell, TCP / UDP und Ports’ offers a thorough introduction to fundamental concepts in network technology. This course is ideal for beginners aiming to understand how applications communicate within a network, making it an excellent choice for those preparing for certifications like CompTIA Network+ or Cisco CCNA.
The course begins with an exploration of reference models such as the ISO/OSI and TCP/IP models, providing learners with a solid foundation of how data is structured and transmitted across networks. It then delves into the Application Layer, explaining the role of protocols such as HTTP, FTP, and email, which are essential for everyday internet usage.
Following this, the Transport Layer is covered extensively, focusing on how applications communicate via ports, including the significance of well-known ports. The course also provides an in-depth look at the Transmission Control Protocol (TCP), explaining processes like the three-way handshake, data acknowledgment, and window size management, which are crucial for reliable data transfer.
Additionally, the User Datagram Protocol (UDP) is discussed to highlight differences in connectionless communication. The practical component of the course includes network simulation and analysis using Cisco Packet Tracer, allowing learners to apply their knowledge in a real-world scenario.
Overall, this course is highly recommended for beginners and aspiring network professionals. Its combination of theoretical knowledge and practical exercises makes it a valuable resource for anyone looking to build a strong foundation in network technology.
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