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- 1network devicesROUTER: first line of security from instruction into a network. a networking devices that forwards data packets between networks.
HUB: most basic networking device that connects multiple devices/ computers or other network devices together. - 2Network devicesBRIDGE: connects LANS (local area networks) together.
SWITCH: connects devices together but to the intended device only (mac address).
MODEM: modems are modulator demodulator digital signal into analogue.
GATEWAY: network point that acts as another entrance to another network. - 3Network communicationsDIFFERENCE BETWEEN PHYSICAL FAXING AND ELECTRONIC FAXING: a document is scanned with a fax machine it is processed and turned into a bitmap. then transmitted through the phone in the form of audio frequency tones then receiving fax machine interprets the tones and remakes the image. electronic faxing is an exact copy made by electron scanning.
- 4what are the features of electronic mail: - quick form of communication - sent around the world within a click of a button -automatic date and time stampedADAVNTAGES AND DISADVANTAGES OF USING EMAIL COMPARED WITH FAXING :
traditional faxes
-signatures on faxes are accepted legally
-the quality of the documents printed out can be poor at times
-if the telephone line is busy there can be a considerable delay in sending the fax. - 5EMAIL -more secure than faxes -usually better quality -no need to print out the documentFEATURES OF VIDEO CONFERENCING: features include webcams, large monitors, microphones and speakers
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- FlashCards sobre Sem título, criado por ella grave em 19-03-2018.
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