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 an architectural style of the World Wide Web

 a network infrastructure that spans a large geographic area

 a service that offers on-demand access to shared resources

 a continuous interaction between people, processes, data, and thíng

URL

 device name

 IP address

 gateway address

 I = V x R

 R = I x V

 P = I x R

 V = I x R

 utilities

 advertising

 equipment insurance

 materials

 rent

 measuring a physical property by detecting information from the physical world

 receiving a signal from a device and performing a set action

 collecting data and then sending instructions for actions to be taken, or sending information for further analysis

 improving a physical environment by measuring changes

 determining the best path to forward packets

 controlling how data is placed and received on the media

 providing an addressing scheme for reaching destination networks

 accepting Layer 3 packets and packaging them into frames

 A closed-loop system uses an IP-enabled controller whereas an open-loop system does not.

 A closed-loop system uses a negative feedback mechanism whereas an open-loop system uses a positive feedback system.

 A closed-loop system uses a feedback mechanism whereas an open-loop system does not.

 A closed-loop system uses a controller whereas an open-loop system does not.

 domain names

 IP addresses

 Uniform Resource

Identifiers

 Ethernet addresses

 operating system

 memory

 device driver

 storage

 firmware

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