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network hardware terms
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- 1RouterRouters work by sending data between networks (e.g. over the internet).
- 2Network interface card(NICS)The NICS convert the data signals from the nodes into data signals that can be transferred across.
- 3Hub- Not intelligent data.
- Cheap devices - USB hubs useful in home computer.
- A device that connects nodes together. - 4Switch- Intelligent data
-This reduces network traffic because making the network run faster.
- A device that connects nodes together. - 5HardwareAt least two computers (Nodes)
Each having a NIC – network interface card (either wired or wireless). - 6Local area network(lan)- It is installed on one site,relatively small,it is owned by the organisation.
- Each device is called a node. - 7Wide area network(WAN)-Cover a large geographical area.
-Uses cables,telephone lines,satellites and radio waves to connect.
-examples include international banking systems and ATM machines. - 8what is a computer network ?A computer network or data network is a digital telecommunications network which allows nodes to share resources
- 9Advantages of a computer network ?Sharing devices such as printers saves money.
- 10Disadvantages of a computer network ?Purchasing the network cabling and file servers can be expensive.
- 11What devices are needed to produce a LAN?. network adaptor
.network medium
.cable connectors
.power supply
. Hub/Switch/Router
.network software - 12what is a Wireless application protocol?Wireless Application Protocol is a technical standard for accessing information over a mobile wireless network
- 13What is the difference between a Hub and a Switch?A switch is effectively a higher-performance alternative to a hub. People tend to benefit from a switch over a hub if their home network has four or more computers, or if they want to use their home network for applications that generate significant amounts of network traffic, like multiplayer games or heavy music file sharing.
- 14What is the Internet?The internet is a global network of computers that works much like the postal system, only at sub-second speeds.
- 15What is the World Wide Web?The World Wide Web is an information space where documents and other web resources are identified by Uniform Resource Locators, interlinked by hypertext links, and can be accessed via the Internet.
- 16What 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.
- 17What 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.
- 18What is an IP address?a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network.
- 19What does HTTP stand for?HTTP stands for "Hyper Text Transfer Protocol", the primary technology protocol on the Web that allows linking and browsing.
- 20What is a URL?the address of a World Wide Web page.
- 21How is a URL constructed?This is the Uniform Resource Locator (URL) of the web page you are looking at right now. A URL can be thought of as the "address" of a web page and is sometimes referred to informally as a "web address."
- 22What are the three different network topologies?.Bus Topology
.Ring Topology
.star topology - 23What are the advantages of a Star topology?Easy to connect new nodes or devices.
- 24what are the disadvantages of a star topology ?Cable failure anywhere will affect the whole network
- 25What are the advantages of a Ring topology?One-way system so not affected by heavy traffic
- 26What are the disadvantages of a Ring topology?Cable failure anywhere will affect the whole network
- 27What are the advantages of a Bus topology?The simplest and cheapest to install and extend
- 28What are the disadvantages of a Bus topology?If the main bus cable fails then the whole network will fail
- 29What is HTTPS and what is it used for?HTTP is the underlying protocol used by the World Wide Web and this protocol defines how messages are formatted and transmitted, and what actions Web servers and browsers should take in response to various commands.
- 30What is encryption?the process of converting information or data into a code, especially to prevent unauthorized access
- 31What is decryption?Decryption is the process of taking encoded or encrypted text or other data and converting it back into text that you or the computer can read and understand.
- 32examples of data that need to be kept secure.bank details
.account details
.passwords
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- Fichas sobre network hardware terms, creado por Izzy Blakeley el 04/10/2017.
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- Izzy Blakeley
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