Download Introduction to Local Area Networks (LANs): Purpose, Components, and Sharing and more Slides Data Communication Systems and Computer Networks in PDF only on Docsity! Introduction to LANs docsity.com MODULE Purpose and Use of a Network docsity.com A Note on Sharing and Collaboration • Sharing • One shares the application • The other watches the changes being made • Collaboration • Both share the applications and both can make the changes docsity.com Network Types • Locally oriented (LAN) • Globally oriented (WAN) • A combination of the above two types docsity.com A Simple Network Client Client Server Peripheral Device (Modem) Printer Directly attached peripheral (Network Printer) docsity.com Sample Components of a Simple Network • Network Hardware • Network Software • Resources • Hard resources • Soft resources • Personnel • Administrators • Users docsity.com Hardware •Servers •Clients •Peripheral devices • Network printers • NAS •Media (Cabling) • Twisted pair, coaxial cable, optical fiber etc. • Wireless networks without cables •Networking Devices • Hubs, switches, routers docsity.com Media • CAT 5 • 100 Mbps LANs • CAT 5e • 1000 Mbps LANs • CAT 6 docsity.com Resources • Hard resources • Printers, scanners etc. • Soft resources • Folder, application etc. docsity.com Hard Resource Sharing Example Printer (Attached directly or to the Server) Print Jobs Print Jobs Print Server Print Queue docsity.com Soft Resource Sharing (File Server) Example Server Client Client Tariff Resource (Folder to be shared). User User User Administrator docsity.com Personnel • Administrators • Administrator, account operator, server backup operators etc. • Users • Local user, power user, global user etc. docsity.com Network Administrator's Responsibilities • Install, manage and fine-tune the network resources • Create and manage users • Assign privileges to users to use the resources • Sharing resources • Accessing network applications • Ensure LAN security docsity.com Users • Global users • Local users • Group of users • Power users • Users with administrative privileges docsity.com Network (Services) Servers •DHCP (Services) Server •DNS (Services) Server •Proxy (Services) Sever •WINs (Services) server •RAS (Services) Server • Routing and Remote Access Server •VPN (Services) Server •Share Point services docsity.com Application Servers • SQL Server • Web (Service) Server • Media (Service) Server docsity.com Major Network Architectures • .Net • J2EE docsity.com Further Keywords • Sharing of printers • local printer • shared printer • network printer • Symmetric Multi Processing (SMP) • Clustering • Load balancing docsity.com v
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