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Question 1 Discuss the classification of DBMS based on location of database
Question 2 Explain with examples different SQL commands used for creating and deleting relations. Write a short note on ACID properties of transaction model
Question 3 Define functional dependency. Give examples. Also describe 1st, 2nd and 3rd normal Forms
Question 4 Explain the various heuristics involved in query optimization. Also describe the various algorithms for executing query operations
Question 5 Describe the most important classes of parallel machines
Question 6 How is two phase locking method used to ensure serializability? Illustrate
Greater potential for bugs: Since the sites of a distributed system operate simultaneously, it is more complex to ensure the correctness of algorithms. The art of constructing dis
Drawbacks of Database systems ?
Chapter 10a review questions
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
Which method is used to key transformation ? A hash method is used to key transformation.
What do you mean by atomicity and aggregation? Atomicity : Either all actions are carried out or none are. Users should not have to worry about the effect of incomplete trans
What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and
The definition of the classes and operation can often be adjusted to increase the amount of inheritance". Justify the above statement. Adjustment of Inheritance The def
With the linear commit protocol, sites are connected in a chain, and the subtransaction at the left-hand end of the chain initiates the protocol. Propose a crash recovery protocol
All edges of a cube are expanding at a rate of 6 centimeters per second. How fast is the surface area changing when each edge is (a) 2 centimeters and (b) 10 centimeters?
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