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You are a painter and have an Internet store where you sell your paintings directly to the public. You would like customers to pay for their purchases with credit cards, and wish to ensure that these electronic transactions are secure.
Assume that Mary wants to purchase your recent painting of the Cornell Uris Library. Answer the following questions.
1. How can you ensure that the user who is purchasing the painting is really Mary?
2. Explain how SSL ensures that the communication of the credit card number is secure. What is the role of a certi?cation authority in this case?
3. Assume that you would like Mary to be able to verify that all your email mes-sages are really sent from you. How can you authenticate your messages without encrypting the actual text?
4. Assume that your customers can also negotiate the price of certain paintings and assume that Mary wants to negotiate the price of your painting of the Madison Terrace. You would like the text of this communication to be private between you and Mary. Explain the advantages and disadvantages of di?erent methods of encrypting your communication with Mary.
Evaluate whether the use of a distributed DBMS structure is appropriate and identify the optimization techniques that should be factored in to enhance the operations of the database in your design.
The appropriate SQL commands, which should be copied from your source code in MySQL, and pasted into your submission file; and The resultant tables, which must be screenshots to show the change due to the execution of commands
systems analysis and database designyou should back up your answers with theoryreferences from reliable sources - more
Design an Entity model and construct a set of tables with suitably defined columns to support this scenario and find details of all books stocked in London
Explain these situations. When would the database be more beneficial than sequential file? Is it possible for two kinds of permanent storage to be used interchangeably?
Developing activity diagrams. (Please note that for the use case, "Buy Items", there are two scenarios, namely, "General public customer buys items" and "Contractor customer buys items". You should develop an activity diagram for each of the..
Analyse the behaviour of the most important stateful object of the system and document this behaviour with.
Explain Class diagram. Outline the main steps in developing a class diagram for a Use Case(UC).
Write the procedure named Get_frequencies which constructs character frequency table. Input to procedure must be a pointer to the string, and pointer to array of 256 doublewords.
Consider the EER diagram for a car dealer in the figure below. Map the EER schema into a set of relations. For the VEHICLE to CAR/ TRUCK/ SUV generalization.
prepare a 900 word paper discussing the attached case study burger king beefs up global operations and incorporating
Explain the concept of physical data independence and its importance in database systems, List four significant differences between a file-processing system and a DBMS.
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