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Firewall
The NAT router allows receiving of number of a data streams. If it receives a transmission in the form of acknowledgement or data streams or error responses from an external server due to a particular request from an internal user, then it will receive the data, translate the address to local IP address and forward it to the requesting user. By preventing all incoming requests or connections except those expected or permitted, the router acts as a "firewall".
You are requested to design a secure home or small scale network (Fig. 1) to satisfy the key concepts underlying computer and network security: confidentiality, integrity, availabi
Q. Define RS232 Interface? - Indicates the interface between DTE and DCE: V.28 mechanical as well as electrical characteristics V.24: functional as well as procedur
data network design with live examples
What is the disadvantage of a star topology? One major drawbacks of star topology is that once the central hub or switch get damaged, the whole network becomes unusable.
Can you define tunneling?
Disadvantages You typically would not use a packet filter as your only security solution for your network packets filters have two major disadvantages. a. Low securit
UDP is connectionless, and does not give error checking. But remember, error checking can happen at other layers too.
Q. What are the Tools sued for Cryptography and Web Security? Tools - Cryptography VPN - remote access PGP - email Dedicated Circuits -tunnels' - IPSec
what is routing
Question 1: ‘There is an overwhelming imperative for organisations to analyse every bit of information they can extract from their huge data warehouses for competitive advant
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