1. Keisuke Maruuchi Copyright © 2011 ITnetworking Co.,Ltd All Rights Reserved. course2:IP network guide

2. Copyright © 2011 ITnetworking Co.,Ltd All Rights Reserved. TCP/IP protocol

3. ・ TCP/IP protocol ・ IP protocol ・ IP address Copyright © 2011 ITnetworking Co.,Ltd All Rights Reserved.

4. Copyright © 2011 ITnetworking Co.,Ltd All Rights Reserved. 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 1 Network Interface

5. NEC Corporation (2001), The Internet technology basics Copyright © 2011 ITnetworking Co.,Ltd All Rights Reserved.

6. 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.  ‍ [course title] IP network guide Copyright © 2011 ITnetworking Co.,Ltd All Rights Reserved.