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Question 1:
(a) In the context of an information system, distinguish and relate among the terms: data, information and decision-making.
(b) Describe at least two challenges that can be faced in the harnessing of Information Systems in an organization.
(c) Briefly describe the features of a transaction Processing System
(d) With the help of an example explain the following terms: Field, Record, File and Database.
Question 2:
(a) What are challenges of electronic commerce/business
(b) List the major components of ICT Infrastructure
(c) Is there any choice left for organisations not to adopt Information Systems? If not, why?
(d) Elaborate on the major steps in the information system development process
THICK ETHERNET WIRING: It needs thick coax cable. AUI cable joins from NIC to transceiver. AUI cable take digital signal from NIC to transceiver. The transceiver creates anal
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Disadvantages of OSPF protocol i) Single Area ii) High Hardware Requirements iii) Troubleshooting
What is source route and OSPF? Source route It is a series of IP addresses identifying the route a datagram must follow. A source route might optionally be included in an
What are the drawbacks of ARCNet? Here are some drawbacks of ARCNet: 1. Standard ARCNet is very slow (2.5 Mb/s). It is almost seven times slower than Token Ring. 2. ARC
http://cseweb.ucsd.edu/~savage/papers/CCS12Exploit.pdf
TCP (Transmission Control Protocol) and UDP are used by TCP/IP. SPX (Sequenced Packet Exchange) is used with IPX. NBP (Name Binding Protocol) is used with Appletalk.
Modulation and DeModulation
Give some examples of private network addresses. 10.0.0.0 with a subnet mask of 255.0.0.0 172.16.0.0 with subnet mask of 255.240.0.0 192.168.0.0 with subnet mask of 255.2
The Five steps to data encapsulation (IN ORDER): 1) User information is changed into data. 2) Data is changed into segments. 3) Segments are changed into datagram and pack
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