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Explain the uses of Firewall in computer
For Intranet developers, restricting access of unauthorised users to the Web site has been the greatest challenge. In addition to preventing external users, a watchful eye on the users within the company may also have to be maintained. There are various tools to provide protection against unwanted intruders into the corporate wide networks, but the most popular amidst all security measures is the firewall.
What are gateways? Gateways give connectivity among two or more network segments. It is usually a computer that runs the gateway software and gives translation services. This t
Q. What are the Tools sued for Cryptography and Web Security? Tools - Cryptography VPN - remote access PGP - email Dedicated Circuits -tunnels' - IPSec
BRIDGES: A bridge is a hardware device also needed to connect two LAN code segments to extend a LAN. A bridge uses two NICs to connect two code segments. It listens to all tr
Q. Explain about Horn Antenna? - Outgoing transmissions broadcast by a stem and deflected outward - Received transmissions collect by a scooped part of the horn and deflecte
Q. What do you mean by Substitutional Ciphers? Substitutional Ciphers Monoalphabetic Substitution Polyalphabetic Substitution - Transpositional - character
Wireless Phone Company (WLPC) is a provider of wireless phone service in the US with 100,000 customers serving mostly small markets. WLPC has just purchased additional airwaves in
Question 1 Discuss the following Evolution of Data Communication Elements of Data Communication System Question 2 Explain the following
Residential Access Residential access is connecting home end systems ( typically a PC but increasingly a home network) into the network. One form of residential access i
Access Networks and Physical Media Access networks are the physical links(S) that connect an end systems to its edge router. Which is the first router on a path fr
Q. Show the Routing Table? Routing Table Every router remains a routing table that has one entry for every destination network of which the router is aware Proces
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