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SNHU IT 200 QUESTIONS WITH COMPLETE ANSWERS..

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SNHU IT 200 QUESTIONS WITH COMPLETE ANSWERS

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Domain Name System (DNS)


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Internet service that translates domain names into IP addresses.




UDP


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User Datagram Protocol. Used instead of TCP when guaranteed delivery of
each packet is not necessary. UDP uses a best-effort delivery mechanism.
Good for simple/basic (like in gaming when speed is needed to avoid lag
but doesn't hold super important info)

,Feedback


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Transmission and return of information




Systemic Structures


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Ways that system parts are organized




Killer app


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A software program that becomes so popular that it drives the popularity
of the hardware it runs on




Multicast


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Messages are sent to a specific group of hosts on the network - not limited
to local subnet

, Persona


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Representation of a type of user




Affordance


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The way something looks should indicate how it can be manipulated (Ex: a
shadow on a button that indicates the button can be clicked)




Output Device


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Tool that delivers machine to user (monitor, speakers)




Simplex


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