Flashcards
Elements of a network enviornment
Flashcards do conjunto (10)
- 1What is a Interface Card and what is it used for? (Communication devices)It is a electronic printed circuit that fits into a computers motherboard and is used to allow the computer to be recognised by the network and determines the speed of data transmission.
- 2What is a Modem (Modulator-demodulator)? (Individual users)It is a device that plugs into a computer and is connected to a telephone line which provides access to a wide area network (WAN). It converts digital signal into analogue for the transmission of the telephone then converts analogue into digital for oncoming messages.
- 3What is a broadband modem?It connects to a computer using a telephone line and uses a Asymmetric Digital Subscriber Line (ADSL) to achieve faster transition rates. It links a computer to allow internet access to the user.
- 4What is a wireless broadband modem?It is a wireless router that allows devices to connect to the internet wireless if the device has a wireless adapter. This translates the digital form to radio form and transmitted to an antenna.
- 5What is a microfilter?It is installed to a phone extension and is used to stop the broadband interference.
- 6Large OrganisationsLots of hardware is required to link computers to a network and large organisations use lots of servers. Hardware such as, hard drives can be used to store databases and files that are shared online between users.
- 7What are the different Data transfer media cables?Computers can be connected to the internet wirelessly or with a copper cable.
1.) Ethernet cable (coaxial - e.g. tv aerial).
2.) UTP (Unshielded Twisted Pair) .
3.) Fibre Optic - faster than copper cabling but more expensive. - 8What are the different types of Networking Software?1.) Protocol - A standard of rules that defines how communication is used between computers.
2.) Modem Driver - A program that controls the broadband modem.
3.) Browser - Allows the user to view web pages using HTML (Hyper Text Markup Language).
4.) ISP - (Internet Service Provider) Provides a package for users which allows access to the internet and emails. - 9What is a Standard?Standards - It is a common way of doing something e.g. storing data in a format (JPEG, MP3, MP4 etc) and it allows the data to be interpreted correctly.
- 10What is a Procedure?Procedures - They need to be carried out to allow security on a network. E.g. (Virus scanner - checks for viruses, Spyware - Gathers information about the user through the internet).
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- AS level IT - AS Level FlashCards sobre Elements of a network enviornment, criado por Cameron Taylor em 02-04-2017.
- Criado por
- Cameron Taylor
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