Network DevicesWorkstationsAworkstation is used to access the internet, network etc. Any level of access accountcan log into one, for example, user, staff and admin. Also known as a terminal,the workstation is for work related activities only and can result in adisciplinary if used incorrectly or immaturely.ServersWebserver and Proxy ServerAwebserver is used to communicate between a website and a device such as acomputer. It uses HTTP (Hypertext Transfer Protocol) to transfer packets ofdata to and from the webserver to the device that the user wants the webpagedisplayed onto. A proxy server is used to either increase efficiency betweenthe server and user or to filter data. The proxy server saves recently usedwebpages to minimise the wait time after the original user has accessed thepage so it decreases the loading time for the next user who wants to access it.
Interconnection DevicesRouter and SwitchArouter is used to connect devices, such as, networks, computers and mobiledevices to the internet. When a server and a device are communicating therouter finds out where and how to send and receive packets of data to the correctlocation. A switch is a network device that receives, sends and redirects datato the correct destination on a LAN (Local Area Network). The differencebetween routers and switches is a router can send data to other networks unlikethe switch.Wireless Access PointAwireless access point allows wireless devices to connect to a network withoutthe use of cabling, it saves physical space instead of having ethernet wiresconnected from the network to the device.
This will increase the number ofdevices that can connect to the network because it won’t be restricted by howmany inputs are connected to the network. This is also known as Wi-Fi.Connectors and CablingUTPUTP(Unshielded Twisted Pair) is a copper cable that is commonly used in LANs(Local Area Networks).
It consists of four twisted pairs made of copper, havingthem twisted decreases the chances of interference, there is a total of fivetypes of UTPs, they are; CAT3, CAT4, CAT5, CAT5e and CAT6.Fibre OpticFibreoptic cabling uses light waves to transmit data, this is possible by usingglass threads. This method of wiring is more efficient than using metal cablesdue to the increased bandwidth, data is sent digitally rather than analogically.A disadvantage to fibre optic is that they’re more expensive to install and canbe easier to break.SoftwareAnti-Virus and FirewallAnti-Virusand Firewall software are essential for any device that is connected to thenetwork, without either of them you could be exposing the network to malicious softwareor attacks.
Anti-Virus software will detect unwanted and harmful software tominimise the potential damage it could cause. A Firewall is used to preventsoftware from accessing sensitive data or programs.Email ClientHavinga default email client for workstations on the network helps users navigate,send and receive emails without requiring help. For example, Microsoft Outlookis a popular email client especially within businesses, this is because theycan set up and configure their own email addresses that are local to theirnetwork.