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Question:
a) What is Client/Server and what benefits can be expected from Client/Server systems?
b) Explain what middleware is and what it does. Why would MIS managers be particularly interested in such software?
c) What is a 3-Tier architecture, and what are the benefits of setting up one. Support your answer with appropriate diagram.
d) Discuss the different levels of security that should be established in a client/server database system.
what problems are raised by the database? why is it so controversial? why is data quality an issue?
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
find the name of supplier who supply some red part
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
What is Object Oriented model? This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
Define functional and multivalued dependencies. Ans: A functional dependency is a assets of the semantics of the attributes in a relation. The semantics point out how at
Define the Two Phase Locking Protocol This is a protocol that is used to make sure serializability of transactions. This protocol needs that every transaction issue lock and u
what are the type of the database
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