Sunday, March 22, 2015

Advanced Database Management Systems - Pune University December 2011 Questions

Advanced Database Management Systems - Pune University December 2011 Questions / ADBMS November December 2011 Question Paper / B.Tech Information Technology ADBMS Pune University question paper with answer

Total No. of Questions : 12]                                                         [Total No. of Pages :3        P 608
[4064] - 604
B.E. (IT)
(2008 Course) (414443(A)) (Sem. - I) (Elective - I)
Time : 3 Hours]                                                                                            [Max Marks : 100 Instructions to candidates :
1) Answers to the two sections should be written in separate books.            
2) Neat Diagrams must be drawn wherever necessary.
3) Figures to the right indicate full marks.
4) Assume suitable data if necessary.
5) All questions are compulsory.


Q1) a) What is the need of PL/SQL? Draw PL/SQL block structure and execution environment. Explain each block. [8]
b) How can you trap exceptions in PL/SQL? Write a code fragment to trap any three exceptions. [8]


Q2) Write an UPDATE trigger on a table that keeps track of old values of the updated record. Add old values in another table. Create required tables and write SQL statements for the same. [16]

Q3) a) What are TP monitors? Explain the TP-Monitor architectures. [8]
b) What are two-phase locks? Give an example. [8]


Q4) a) Write a note on long-duration transactions. What are the key properties they must have? [8]
b) What are compensating transactions? [8]

Q5) a) Where you would need to use Complex data types? How would you declare structured types using SQL: 1999? [10]
b) What is XML DTD? Explain with example. [8]


Q6) a) Write a note on XML applications. [8]
b) In order to turn a language into database programming language, we need to make objects persistent. Explain different approaches. [10]


Q7) a) Suppose that a data warehouse consists of three dimensions time, doctor and patient, and the two measures count and charge where charge is the fee that a doctor charges a patient for a visit. [9]
i) Enumerate three classes of schemas that are popularly used for modeling data warehouse.
ii) Draw a schema diagram for the above data warehouse using one of the schemas listed above.
b) Define data warehouse. Explain each clause in the definition. Can RDBMSs be used instead of warehouses? Give reasons. [9]


Q8) a) What is the need of extraction, cleaning and transformation while building data warehouse? Give examples to support your answer. [9]
b) Describe how a dimensional model differs from an Entity-Relationship (ER) model present a diagrammatic representation of a typical star schema and state its advantages and disadvantages. [9]

Q9) a) What is market-basket analysis? Explain the algorithm that implements this concept. [8]
b) Explain in detail any four OLAP functions which are extensions to SQL. [8]


Q10) Write short notes on: (any two) [16]
a) Categories of OLAP tools.
b) Supervised and unsupervised learning
c) OLAP benchmarks and applications.

Q11) a) Explain Implicit Locking. How does Oracle implement it? [8]
b) Write a note on Database Security and the threats. [8]


Q12) a) How will you implement business rule validations? [8]
b) Explain the following in terms of providing security for a database: [8]
i) Authorization.
ii) Encryption.


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