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Computer Networking

广西医科大学. Computer Networking. 网络课件. 双语教学. 模拟实验. 计算机网络教研室. DI. 1. 2. 3. Chapter 12 LAN Installation and Operation. The first section. Exercises. Online lecture. Chapter 12 LAN Installation and Operation. 12.1 INTRODUCTION

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Computer Networking

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  1. 广西医科大学 ComputerNetworking 网络课件 双语教学 模拟实验 计算机网络教研室

  2. DI 1 2 3 Chapter 12 LAN Installation and Operation The first section Exercises Online lecture

  3. Chapter 12 • LAN Installation and Operation 12.1 INTRODUCTION Only by understanding the characteristics and tradeoffs among various types of LANs can the designer reach a reasonable solution for a particular organization or application. www.gxmu.edu.cn

  4. Chapter 12 • LAN Installation and Operation 12.2 LAN SELECTION CRITERIA LAN selection criteria for managers LAN cost considerations ——It is very important to think about future growth requirements when planning the LAN. www.gxmu.edu.cn

  5. Chapter 12 • LAN Installation and Operation • 12.3 LAN PERFORMANCE • Protocol CSMA/CD or Token passing ? • Speed of Transmission • Amount of Traffic • Error Rates • Efficiency of LAN software • Speed of the Server Computer and Disks www.gxmu.edu.cn

  6. Chapter 12 • LAN Installation and Operation 12.4 INSTALLING A LAN The tasks of installing a LAN www.gxmu.edu.cn

  7. Chapter 12 • LAN Installation and Operation 12.5 MANAGING THE LAN Organization and management Physical safeguards Documentation Change control Hardware and software backup Access to network facilities Network application standards Network performance monitoring www.gxmu.edu.cn

  8. Chapter 12 • LAN Installation and Operation • 12.6 LAN SOFTWARE • Software for the Client Workstation • Software for the Server • 1. Novell Netware • 2. Microsoft Windows Server ——Windows 2000 Server Windows Server 2003 • 3. UNIX ——Sun Microsystems Solaris HP-UX IBM AIX SCO UNIX • 4.Linux ——Red Hat Fedora 9.0 SuSe Linux Red Flag www.gxmu.edu.cn

  9. 课后习题 • Chapter 12 • LAN Installation and Operation 1. More and more families are creating home networks to（　　）. D × A、 avoid the high cost of ISPs × B、 practice their networking skills × C、 ensure greater network security D、 share a high-speed Internet connection √ Reset Next Show Answer

  10. 课后习题 • Chapter 12 • LAN Installation and Operation 2. One of the most important prerequisites for home networking is （　　）. D × A、 thorough knowledge of networking × B、 an MSCE certification × C、 broadband cable access D、 ease of installation √ Reset Next Show Answer

  11. 课后习题 • Chapter 12 • LAN Installation and Operation 3. The most popular and reliable type of home network is（　　）. A √ A、 token ring B、 Ethernet × × C、Scatternets × D、 Bluetooth Reset Next Show Answer

  12. 课后习题 • Chapter 12 • LAN Installation and Operation 4. Power line networks are desirable because（　　）. D × A、 they cost less than other alternatives × B、 they allow you to plug into existing, readily available electrical outlets × C、 they have better security than other technologies D、 they are faster than other types of network √ Reset Next Show Answer

  13. 课后习题 • Chapter 12 • LAN Installation and Operation 5. Which of the following software is not primarily used to operate a LAN?（　　）. C × A、 NetWare × B、 Windows Server √ C、 Windows XP-Pro × D、 Solaris Reset Next Show Answer

  14. 课后习题 • Chapter 12 • LAN Installation and Operation 6. Costs of a proposed LAN can sometimes be reduced by reducing the _______ at which the LAN operates. speed Answer 7. LAN performance is based on several factors including the amount of _______ the LAN handles on a hourly or daily basis. traffic Answer 8. Saving money by inhibiting the ability to _________ the LAN in the future is probably shortsighted. expand Answer

  15. 课后习题 • Chapter 12 • LAN Installation and Operation speed 9. Distance limitations in a LAN are related to the _____ at which the LAN operates. Answer 10. A ______________________________ provides overall software control for a LAN including the operation of servers, security, operational commands, network performance monitoring, and operational statistics. network operating system (NOS) Answer

  16. 课后习题 • Chapter 12 • LAN Installation and Operation proxy 11. A _______ server sits between two networks and translates network addresses so that workstations on one network do not know the actual addresses of workstations on the other network. Answer 12. When one is used, a proxy server provides security because all traffic must pass through it for _________________. address translation Answer

  17. 课后习题 • Chapter 12 • LAN Installation and Operation 13. A ________________________ is a private network that uses a public network, such as the Internet, as the medium to transport data and connect remote sites or users. virtual private network (VPN) Answer 14. A ________ cable has RJ-45 connectors at each end and attaches to the NIC in the computer and to the hub or router on the other end. patch Answer

  18. Chapter 12 • LAN Installation and Operation Thank You ! www.gxmu.edu.cn

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