Abstract
When organizing training in computer networks on real equipment, educational institutions face organizational, technical and material difficulties. Using network modeling, the above difficulties can be avoided in teaching future informatics teachers about computer networks. The aim of the research was to prove the effectiveness of teaching future informatics teachers to computer networks based on network modeling. The method of theoretical analysis is carried out in order to comprehensively study the state of the problem under consideration. A pedagogical experiment has been conducted for evaluating the efficiency of teaching computer networks based on modeling. The study has been organized in experimental and control groups. Mathematical statistics were used for the analysis. In the course of the study, it was found that the development and implementation of the proposed teaching methodology provides an opportunity for full and high-quality training of future informatics teachers in the field of computer networks, which allows them to solve professional problems in the design, maintenance, configuration and administration of computer networks.
 Keywords: programming environment; informatics teacher; network technologies; teaching methods; informatization.
Highlights
Changes in society and technology pose new challenges to the education system
It should be noted that the problems of training IT specialists have been studied by ( Yakymchuk & Kazachenok, (2018), Olifer & Olifer, ( 2016), Fakhar, (2019), Calle, Tovar, Castaño-Pino & Cuéllar, (2018) and other issues of training informatics teacher in this direction are reflected in the works of Damekova, (2008), Nikitin, Melnikova, & Gorokhova (2014), Sergeev (2016), Lyash (2008), Lyaginov (2011), Shestopalova (2014), Mogilev et al (2004)
On the basis of this, it was concluded that when teaching future informatics teachers about computer networks, it is necessary to use network modeling using software environments that simulate the structure and functioning of computer networks
Summary
Changes in society and technology pose new challenges to the education system. An important component in the organization of the educational process in the context of the informatization of education is information and educational systems that use network technologies and are an integral part of the information and educational environment of an educational institution. The above listed software environments allow creating networks of various topologies and structures by emulating network components (network cables, switches, routers, workstations, servers, etc.) and visualizing on a computer screen: the processes of configuring components and their interaction; processes of work of various network protocols; setting up a local area network and global Internet connection; as well as the functioning of the computer network as a whole This ensures: determination of the optimal topology, adequate selection of network equipment, determination of the network performance; the impact of bursts of broadcast requests on the functioning of the network and determining the limit beyond which its «destruction» will go; possible stages of the future development of the network. From the analysis of the functional capabilities of the above various software environments, it follows that they fully provide the opportunity for full and high-quality training of future informatics teachers in the field of computer networks, allowing them to solve professional problems in the design, maintenance, configuration and administration of computer networks
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