NETWORKING1

• Every computer on a network is called a host or end device.
• Clients are computers that send requests to the servers to retrieve information
• Peer to peer network design is only recommended for very small networks.
• An end device is where a message originates from or where it is received.
• An intermediary device interconnects end devices
• Network diagrams, often called topology diagrams, use symbols to represent devices within the network
• Physical topology diagrams illustrate the physical location of intermediary devices and cable installation.
• Logical topology diagrams illustrate devices, ports, and the addressing scheme of the network.
• SOHO(SMALL HOME NETWORKS) - Type of network that connect a few computers to each other and the Internet
• Small Office/Home Office – Type of network which enables computer within a home or remote office to connect to a corporate network
• Medium to Large Networks – type of network with manylocations with hundreds or thousands of interconnected computers
• World Wide Networks – type of network that connects hundreds of millions of computers world- wide – such as the internet Small Home SOHO Medium/Large World Wide such as internet
• A LAN is a network infrastructure that spans a small geographical area.
• A WAN is a network infrastructure that spans a wide geographical area.
• An intranet is a private collection of LANsand WANs internal to an organization thatis meant to be accessible only to theorganizations members or others withauthorization
• Cable - high bandwidth, always on, internetoffered by cable television serviceproviders.
• DSL - high bandwidth, always on, internetconnection that runs over atelephone line.
• Cellular - uses a cell phone network to connectto the internet.
• Satellite - major benefit to rural areas without Internet Service Providers.
• Dial-up telephone - an inexpensive, low bandwidth option using a modem.
• Dedicated Leased Line -These are reserved circuits within the service provider’s network that connect distant offices with private voice and/or data networking
• Ethernet WAN - This extends LAN access technologyinto the WAN.
• DSL - Business DSL is available in various formats including Symmetric Digital Subscriber Lines (SDSL)
• Satellite - This can provide a connection whena wired solution is not available.
• Converged data networks carry multiple services on one link including data, voice and video
• A fault tolerant network limits the impact of a failure by limiting the number of affected devices. Multiple paths are required forfault tolerance
• A scalable network can expand quickly and easily to support new users and applications without impacting the performance of services to existing users.
• What type of network?

  Fault tolerance

  
• What type of network?

  Scalability

  
• Quality of Service (QoS) is the primary mechanism used to ensure reliable delivery of content for all users.