Network Engineer Tutorial, 2nd Edition

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Features: This book is the designated textbook for the National Computer Technology and Software Professional Qualification (Level) Examination. According to the new Network Engineer examination syllabus, it covers fundamental knowledge of data communication, network architecture and protocols, wide-area communication networks, local and metropolitan networks, TCP/IP networks and the Internet, network operating systems, network engineering and networking technologies, as well as network requirements analysis and network performance evaluation. The book balances foundational concepts with practical applications, serving as the textbook for this examination, and also as a reference for network engineering professionals studying network technologies or for daily work.