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Question:
(a) What are the challenges in the development of Large Scale Distributed Real Systems?
(b) What is backward engineering and forward engineering in a design package? Give one disadvantage of backward engineering.
(c) Describe in what two situations data replication may be applied.
(d) What is the implication of data replication?
(e) Will data replication be used in a large scale system?
Give two profit of Reuse of Code. Reusing the implementation . Place existing class directly inside a new class. The new class can be made up of any number and type of the oth
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List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
What is relational model feature? A relational model feature is much more data independence than some other database models.
What is a security? Securities are claims on financial assets. They can be illustrated as "claim checks" which give their owners the right to receive funds in the future. Sec
Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati
Explain the shadow paging recovery technique. Ans: Shadow paging is a method used to acquire atomic and durable transactions, and provides the capability to manipulate pages i
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