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- 1What is a computer network?A computer network is a set of computers connected together for the purpose of sharing resources. The most common resource shared today is connection to the Internet. Other shared resources can include a printer or a file server. The Internet itself can be considered a computer network.
- 2Describe LAN.A local area network (LAN) is a computer network in a small area like a home, office, or school. Many computers can be connected to share information and Internet connections. Most LANs use Ethernet to connect together. LAN topologies tell you how ROM devices are organised
- 3Describe WAN.Wide Area Networks (WANs) A wide area network (WAN) is a data network, usually used for connecting computers, that spans a wide geographical area. WANs can be used to connect cities, states, or even countries
- 4What are the advantages of a computer network?Resource sharing – using network-connected peripheral devices like printers, scanners and copiers, or sharing software between multiple users, saves money. Sharing a single internet connection – it is cost-efficient and can help protect your systems if you properly secure the network.
- 5What are the disadvantages of a computer network?Purchasing the network cabling and file servers can be expensive.
Managing a large network is complicated, requires training and a network manager usually needs to be employed.
If the file server breaks down the files on the file server become inaccessible - 6What devices are needed to produce a LAN?A broadband connection.
A router.
A modem (if there isn't one built in to your router) - 7What is the purpose of an NIC?To connect to a network, a computer uses a network interface card (NIC). A NIC controls the wired and wireless connections of a computer to exchange information with other computers and the Internet
- 8What is the purpose of a router?A router is a switching device for networks, which is able to route network packets, based on their addresses, to other networks or devices. ... In the OSI layer model, the switching of data packets through the router is based on the address on the network layer (layer 3)
- 9What is the purpose of a hub?A hub, also called a network hub, is a common connection point for devices in a network. Hubs are devices commonly used to connect segments of a LAN. The hub contains multiple ports. When a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets
- 10What is the purpose of a switch?A switch is a device that is used at the Access or OSI Layer 2; a switch can be used to connect multiple hosts (PCs) to the network. Unlike a hub, a switch forwards a message to a specific host.
- 11What is the purpose of a WAP?In computer networking, a wireless access point (WAP), or more generally just access point (AP), is a networking hardware device that allows other Wi-Fi devices to connect to a wired network.
- 12What is the purpose of a web browser?Web Browser. A web browser, or simply "browser," is an application used to access and view websites. Common web browsers include Microsoft Internet Explorer, Google Chrome, Mozilla Firefox, and Apple Safari.
- 13What is the difference between a hub and a switch?A switch is used to connect various network segments. A network switch is a small hardware device that joins multiple computers together within one local area network (LAN). A Hub connects multiple Ethernet devices together, making them act as a single segment.
- 14What is the internet?The internet is a global network of computers that works much like the postal system, only at sub-second speeds. ... For that to work, they use a common 'language' called TCP/IP (Transmission Control Protocol/Internet Protocol). If you are on the net, you have an IP address.
- 15What is the world wide web/www?The World Wide Web (WWW) is combination of all resources and users on the Internet that are using the Hypertext Transfer Protocol (HTTP). ... "The World Wide Web is the universe of network-accessible information, an embodiment of human knowledge." The Web, as it's commonly known, is often confused with the internet.
- 16What is the purpose of an ISP?An Internet Service Provider (ISP) is a company that provides Internet access to companies, families, and even mobile users. ISPs use fiber-optics, satellite, copper wire, and other forms to provide Internet access to its customers
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- Karteikarten am revision flashcards!!!, erstellt von Abby Hide am 09/03/2020.
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