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is a networking device that allows multiple computers to communicate with each other over a network.

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by broadcasting all incoming data to all active ports.

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is a hub that allows multiple computers to communicate with each other over a network.

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is a hub that allows multiple peripherals to connect through a single USB port.

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cheap and simple, Can connect different media types.

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has half-duplex, It wastes bandwidth, and Causes unnecessary.

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is a networking device that
connects hosts.

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by receiving incoming data packets and redirects them to their intended destination.

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has full-duplex, It Keeps a record of MAC Address, It can also prevent bandwidth waste, and Increases network size.

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It's more expensive

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is a kind of networking device that interconnects two or more networks together.

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by dividing LAN into different segments.

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It reduces network traffic, It can also prevents bandwidth waste, and keeps record of MAC Addresses.

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It's expensive and slower than hubs.

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is a network device that replicates and amplifies a received signal to an
extended geographical area.

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by amplifying the received signal then rebroadcasts it to another area.

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is used to extend the coverage
area of your Wi-Fi network.

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The specific characteristic of this is that whatever it receives it transmits to the other LAN segment.

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is used to amplify signals to support and carry long distance calls.

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this is used to extend the coverage of a radio signal.

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It amplifies the signal, It does not affect the performance of the network, when it’s performing its task on the signal, Repeaters can be used in different mediums for
reception and transmission,
It does not increase or decrease the network traffic.

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It is not possible to connect different network architectures using repeater. For this router or gateway is needed, The number of repeaters to be used are limited between two ends, More repeaters create noise on the wire which
results into packet collisions or problems in the packet detection,
Repeaters do not perform filtering of the data.

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is a hardware device that converts data from a digital format, intended for communication directly between devices with specialized wiring, into one suitable for a transmission medium such as telephone lines or radio.

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modulates and demodulates electrical signals sent through phone lines, coaxial cables, or other types of wiring; in other words, it transforms digital information from your computer into analog signals that can transmit over wires, and it can translate incoming analog signals back into digital data that your computer can understand.

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is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fibre-coaxial, radio frequency over glass and coaxial cable infrastructure.

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is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line, the most commonly installed DSL technology, for Internet access.

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is a form of Internet access that uses the facilities of the public switched telephone network to establish a connection to an Internet service provider by dialing a telephone number on a conventional telephone line.

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When a computer sends digital signals, it is converted into analog signals by a modem. Modems posses high transmission rates since telephone lines are used here.
Modems are considerably expensive. Modem modems out there perform a function known as Automatic Dialing. Some of the modems are completely compatible with the fax technology.

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One major drawback of connecting a modem is that it can make your computer vulnerable to hackers and malwares While external modems lacks mobility, all the internal modems does support them. Modems especially of DSL type has a problem in availability. The traffic in between LAN and the internet are interfered by a modem. Modems those are of Dial-up types requires telephone lines to access the internet.