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Problem :
(a) Show whether or not a standard format for representing data, such as XML, is needed.
(b) Using an appropriate example, describe how data is organized in a data source, such as an XML document.
(c) What is an XML entity? Distinguish between a general entity and a parameter entity. Provide an example of a general entity declaration, followed by a reference to the same entity.
(d) A software company gives technical support service to its customers. A customer will request the service by filing a document. Write a DTD to define the following structure for documents of type DocReq:
1. The request consists of the customer information and the task.
2. Customer information will include the name, address and telephone number.
3. There is a track number related with each request.
4. The task will be urgent or normal, and normal is the default.
Discuss in brief the history of E-Commerce. History of E-commerce illustrated below: E-commerce began before personal computers were prevalent and has grown into a multibill
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What is 'inode'? All UNIX files have its description kept in a structure called 'inode'. The inode have info about the file-size, its location, time of last access, time of las
How does computer started?
What are the 2 other types of Views, which are not allowed in Release 3.0? The two views are:- Structure Views. Entity Views.
shorte note on hardware description language
What are base tables of an aggregate object? The tables making up an aggregate object (primary and secondary) are known as aggregate object.
In a particular exchange during busy hour 1200 calls were offered to a group of trunks, during this time 6 calls were lost. The average call duration being 3 minutes Calculate Traf
Generally the register storage is faster than cache andmain memory. Also register addressing uses much shorter addresses than addresses for cache and main memory. Though the number
Q. What is Indirect Addressing Mode explain? Indirect Addressing Mode In the indirect addressing modes operands employ registers to point to locations in memory. So it is
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