An extranet is an extension of an intranet that permits secure communications to users outside of the intranet (e.g. enterprise companions, clients). Computer networks are additionally used by security hackers to deploy laptop viruses or laptop worms on devices related to the network, or to forestall these units from accessing the network via a denial-of-service attack. Network congestion happens when a link or node is subjected to a larger information load than it is rated for, leading to a deterioration of its high quality of service. When networks are congested and queues become too full, packets should be discarded, and so networks depend on re-transmission.
Modems (modulator-demodulator) are used to attach network nodes by way of wire not initially designed for digital network site visitors, or for wi-fi. To do that one or more provider indicators are modulated by the digital signal to supply an analog signal that may be tailored to offer the required properties for transmission. Early modems modulated audio alerts despatched over a normal voice telephone line. Modems are nonetheless generally used for telephone lines, using a digital subscriber line know-how and cable television systems using DOCSIS technology.
It protects your inner assets similar to behind-the-firewall purposes, …
