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Question :
(a) How do you relate the subsequent terms in the context of an information system: data, information and decision-making.
(b) Why do you think organisations nowadays have no choice than to adopt information systems for their "survival"
(c) How are Enterprise Systems different from other Information Systems.
(d) What are the benefits derived by an organization in adopting electronic business
(e) Why are information systems so vulnerable to destruction, abuse, error, and system quality problems?
ARP is used to search a devices MAC address given an IP address.
In spite of the incompatibilities among networks, researchers have devised a function that gives universal service among heterogeneous networks known 'internetworking'. It uses bot
So how packets do determines their way across the Internet? Does each computer linked to the Internet know where the other computers are? Do packets just get 'broadcast' to every c
Gateway A gateway is an internetwork device which joins different network protocols together. It woods on all seven layers of OSI model. Gateways are also known as pro
Q. What is Authentication ? - Verification of sender's identity. - Accomplished through a digital signature, which is based on public key encryption/decryption. - Uses re
What is meant by Middleware? Middleware is a distributed software needed to support interaction between clients and servers. In short, it is the software that is in the middle
What is the major issue with hop count metric issue
Explain the Acknowledged connectionless service This is a cross between the previous two services. It provides that datagrams are to be acknowledged, but no prior logical conne
What metrics are used by routing protocols to verify the best path?
Question: (a) Describe the importance of backups and the use of antivirus software. (b) With the help of an example/ illustration, explain the term encryption and explain
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