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State the methods to keep the attackers at bay
Another best methods to keep the attackers at bay is known as network address translator or NAT. The philosophy behind the design of NAT is that the more an attacker knows about the Intranet, the easier it would be attack and cause damage to it. It is sufficient to know the IP addresses of a server to open it and destroy every important data posted on it.
Physical Media In order to define what is meant by a physical medium let us reflect on the brief life of a bit. Consider a bit travelling from one end system through a serie
Assume a network as depicted below with a home agent (HA), a foreign agent (FA), a mobile host (MH), and a remote host (RH). The dotted box is the home location of MH. Assume MH's
Screened Host Architecture This architecture consists of two host machines: a Screening Router and a Screening Host. Screening Router is placed between a local network and the
Q. How is computer networks used in Financial services? Financial services: Today's financial services are totally depended on networks. Application includes credit history
Application Layer The application layer is where network applications and their application layer protocols reside. The internet application layer includes many protocols
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1. A low voltage digital device has a low state of 0 V and a high state of 1.8 V. It generates a signal train of high pulses at a rate of 1 MHz, these pulses having a 10 ns width a
Token Bus Sublayer Protocol Send for some time then pass token If no data after that pass token right away Traffic classes 0, 2, 4 and 6 (highest) Internal s
Q. Show the Refraction and Reflection in Fiber-optic cable ? - Refraction often takes place when light bends as it passes from one medium to another less dense medium - Wh
A network in which there is multiple network links among computers to provide multiple paths for data to travel.
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