Keisuke Maruuchi

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course2:IP network guide

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TCP/IP protocol

・ TCP/IP protocol

・ IP protocol

・ IP address

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On the Internet, the TCP/IP protocol is adopted as a communications protocol.

The OSI Reference Model

Layer 7 Application

Layer 6 Presentation

Layer 5 Session

Layer 4 Transport

Layer 3 Network

Layer 2 Data Link

Layer 1 Physical

The OSI reference model are models upon which it was decided by International Standardization Organization (ISO) and which divided into the layered structure the communication function which should have a computer.

TCP/IP Model

Layer 4 Application

Layer 3 Transport

Layer 2 Internet

Layer 1Network Interface

NEC Corporation (2001), The Internet technology basics

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ITnetworking Co., Ltd.

[your position]　 Network engineer‍[your company’s name]　 ITnetworking Co., Ltd.‍[your company’s brief description]　I suggest the infrastructure of the Japanese company network and perform construction, maintenance‍[employees]　There are the Tokyo head office and an Osaka office; 100 employees[Why do you need to develop online course for your company? Give me a problem description]I educate the basic knowledge of the IP network technology for reduction online at the new employee education time to an employee.e‍ [course title]　IP network guide

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