(This book is an experimental manual textbook for the primary certification training of the "national network management skill level examination", and a synthesis and supplement of the practical skills introduced in the primary certification training textbook "gold medal network manager - network establishment, configuration and management of small and medium-sized enterprises". The book introduces two experimental projects, namely, the comprehensive establishment, configuration and management of the domain network, and takes a real network combat environment and comprehensive, systematic and empirical steps to explain the whole process. All the experimental items in the book need to be tested on the computer in the training course to strengthen the training of network formation, configuration and management skills introduced in the book "gold medal network administrator - network formation, configuration and management of small and medium-sized enterprises", so that students can truly master the main network management practical skills certified at this level. In addition, there are two sets of morning test questions for primary certification, more than 80% of which are practical. Students can test their mastery of the basic skills required for this level of certification by doing these two sets of simulated tests by themselves. This book is also the best partner for junior network management students to self-study and experiment with WindowsServer2003 domain network formation, configuration and management in combination with the textbook "gold medal network administrator - network formation, configuration and management of small and medium-sized enterprises".)