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Networks
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- 1What is a computer network?A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wirelessly through radio waves.
- 2What is a WAN?A wide area network (WAN) is a geographically distributed private telecommunications network that interconnects multiple local area networks (LANs).
- 3Describe a LAN?A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server
- 4what is the advantages of a computer networkAdvantages. Sharing devices such as printers saves money. Site (software) licences are likely to be cheaper than buying several standalone licences. Files can easily be shared between users. Network users can communicate by email and instant messenger.
- 5what is the disadvantages of a computer networkBuying the computer cable and servers can be very expensive.
Viruses can spread to other computers throughout a computer network.
People can hack your computer.
It encourages people to become dependent on computers.
It comes with the risk of security issues. - 6What devices are needed to produce a LAN?Network Adapter. A computer needs a network adapter to connect to a network. ...
Network Medium. Wired networks need cable. ...
Cable Connectors. ...
Power Supply. ...
Hub/Switch/Router. ...
Network Software. - 7What is the purpose of a NIC?The NIC contains the electronic circuitry required to communicate using a wired connection (e.g., Ethernet) or a wireless connection (e.g., WiFi).
- 8what is the purpose of a router?The main purpose of a router is to connect multiple networks and forward packets destined either for its own networks or other networks.
- 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.
- 10what is the purpose of a switch?The basic function that any switch is supposed to perform is to receive information from any source connected to it and dispatch that information to the appropriate destination only
- 11what is the purpose of a WAP?A wireless access point (WAP) is a hardware device or configured node on a local area network (LAN) that allows wireless capable devices and wired networks to connect through a wireless standard, including Wi-Fi or Bluetooth
- 12what is the difference between a switch and a hub?Image result for what is the difference between a hub and a switch
Function of a switch vs. a hub. 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 - 13what is the internet?Lobal computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.
- 14what is the world wide web?An information system on the Internet which allows documents to be connected to other documents by hypertext links, enabling the user to search for information by moving from one document to another.
- 15what is the purpose of a modem?A modem converts digital signals generated by the computer into analog signals which can be transmitted over a telephone or cable line and transforms incoming analog signals into their digital equivalents.
- 16what is the purpose of an ISP?An Internet service provider (ISP) is an organization that provides services accessing and using the Internet. Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned
- 17what is a IP address?a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network.
- 18what is the meaning of HTTPS?Protocol
HTTPS stands for Hypertext Transfer Protocol Secure, and instead of acting as its own application layer protocol, it uses separate protocols called SSL (Secure Sockets Layer) and TLS (Transport Layer Security) - 19what is a URL?the address of a World Wide Web page
- 20how was URL constructed?A URL can be thought of as the "address" of a web page and is sometimes referred to informally as a "web address." ... A URL is made up of several parts. The first part is the protocol, which tells the web browser what sort of server it will be talking to in order to fetch the URL.
- 21what are the three different types of topology?Bus Topology. ...
Ring Topology. ...
star topology.... - 22—As compared to Bus topology it gives far much better performance, signals don’t necessarily get transmitted to all the workstations
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- Fichas sobre Networks, creado por Jasmine Hiley el 23/11/2017.
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- Jasmine Hiley
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