The book "Training manual and assignment on the course project on the discipline of design and operation of transmission systems" is an indispensable resource for students and professionals seeking to deepen their knowledge in the field of design and operation of information transmission systems . This work, created by a team of authors, is a synthesis of theoretical foundations and practical tasks that will help readers not only to master key concepts, but also to apply them in practice. First of all, this manual will be useful for students of technical universities studying in areas related to information technologies, telecommunications and data transmission systems. It may also be of interest to graduate students and young professionals who want to improve their skills in the design and operation of modern transmission systems. The book will be an excellent help for those who are preparing for the defense of term papers and diplomas, as well as for teachers looking for quality materials for their classes. The main purpose of the manual is to help readers understand the complex aspects of transmission systems design. The book covers key topics such as the choice of data transmission technologies, network infrastructure design, and issues related to the operation and maintenance of systems. Each section contains theoretical materials that explain the basic principles, and practical tasks that allow to consolidate the acquired knowledge. This makes the manual not only a teaching tool, but also a practical tool that can be used in real projects. One of the features of this book is its accessible and understandable style of presentation .. The authors try to avoid overly complex terminology, which makes the material available to a wide audience. Readers will be able to easily absorb information and apply it in their projects. In addition, the manual includes many examples and illustrations, which contributes to a better understanding of complex concepts. The book also raises important topics such as the security and reliability of transmission systems, which is especially relevant in today's world, where data protection is becoming a priority. The authors focus on modern trends and technologies, such as cloud computing and the Internet of Things, which makes the manual relevant and modern. Readers interested in such topics can also draw attention to other works on the design and operation of information systems, such as "Data Transfer Systems" or "Basics of Telecommunications". These books will help broaden your horizons and deepen your knowledge in this area. Thus, “Training manual and assignment on the course project on the discipline of design and operation of transmission systems” is not just a book, but a whole guide to the world of modern data transfer technologies. It will become a reliable assistant for anyone who aspires to professional growth and wants to master the skills necessary for a successful career in the field of information technology. Do not miss the opportunity to take a step towards your future by immersing yourself in the study of this fascinating and important topic!