ICT Quarter 4

• Network - It is define as two or more computers connected to share information and data
• Network is down - It is due to poor cabling system
• Personal Area Network (PAN) - it is composed of personal devices and uses wired connection like USB and wireless connection like bluetooth and infrared
• Local Area Network (LAN) - It covers a small local area and is used to workstation, servers and printer
• Wireless LAN (WLAN) - it covers a limited geographical area that networking cables are difficult to install
• Campus Area Network (CAN) - It is a form of metropolitan area network that is on academic setting.
• Campus Area Network(CAN) - It is made up of interconnection of local area network (IAN)
• Metropolitan Area Network (MAN) - Covers a large campus or city
• Wide Area Network (WAN) - Made up of many smaller networks and covers a large geographical area
• Global Area Network (GAN) - It is intended to support mobile communication across an orbitrary number of wireless LAN
• Virtual Private Network (VPN) - Links between nodes are carried by open connections or virtual circuits.
• Network Topology - It is the physical and logical arrangements of nodes and connection in a network.
• Mesh Network - Nodes are responsible for spending and recieving transmission to other nodes
• Fully connected mesh topology - It is when nodes are connected to all nodes
• Ring topology - A form of ring that nodes send signals. it is also seldom.
• Bus Network - Computers/Nodes are connected to a sequential line.
• Star Network topology - Uses a centralized device to manage traffic on the network. Used for LANs
• Loop Back Plug - Used to test a network cable or port
• The cable ports is good - When the led lights on loop back plug lights up then.
• Cable Tester - Used to test Cable and find out what type of cable it is and locate the ends of a network cable in a building.
• 2 Parts of cable Tester

  • Remote
  • Box
• Network Multimeter - A multifunctional tool that can test cables, ports and network adapters.
• Wire Stripper - Used to build or repair netwrok cable and cut away the plastic jacket or coating around wires in a twisted pair cable
• Crimper/Crimping tool - Used to attatch a terminator or connector to the end of a cable
• Punch Down Tool - Also called as impact tool, is use to punch individual wires in a network cable
• keystone RJ-45 Jack - It is used in a RJ-45 wall jack
• Physical Topology - Refers to the configuration of cables, computers and other pheriperals.
• Logical Topology - A method used to pass information between workstation
• Linear Bus Topology - Consists of Main run of cables with a terminator at each end.
• Star Topology - Each node is connected directly to a central network hub or concentrator
• Concentrator/Central Network Hub - It manages and controls all function of the network in a star topology. it also acts as a repeater
• Star Wired ring topology - it has a MAU (Multi station access unit) that contains wiring that allows information to be passed. is uses a protocol namely token ring protocol
• Tree - Combination of Linear Bus and star topologies.
• Considerations when choosing a topology

  • Money
  • Length of cable needed
  • Future growth
  • Cable type