network coisas para saber antes de comprar
network coisas para saber antes de comprar
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The dots represent the nodes in the various topologies, and the lines represent the communication links. Network topologies include the following types:
Mechanical switches were used so that peripheral devices could also be shared. Due to physical limitations (cable length), the devices and computers always had to be very close to each other.
OSI stands for Open Systems Interconnection. It is a reference model that specifies standards for communications protocols and also the functionalities of each layer.
They can perform regular data backups and enforce security measures, such as multifactor authentication, across all devices collectively.
IP Address: An IP address is a unique numerical identifier that is assigned to every device on a network. IP addresses are used to identify devices and enable communication between them.
TCP/IP is a conceptual model that suggests the following four functional layers for these communication links:
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When you’re traveling with portable devices, you’ll find public WLAN everywhere, giving you access to the world wide web. Even in residential and work spaces, practical wireless networking is widespread. It’s easy to forget that there’s a risk involved when transferring data…
Star Topology: In star topology all devices are connected to a central node called hub or switch. The hub controls the flow of data between devices. If one device fails the rest of the network is unaffected. But, if the central hub fails the whole network stops working.
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Ring network. Network devices are connected to two other devices on either side through a coaxial cable or an RJ-45 cable.
What are the tasks and advantages of a network? The main task of a network is to provide participants with a single platform for exchanging data and sharing resources. This task is so important that many aspects of everyday life and the modern world would be unimaginable without networks.