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Posted Date: 18 Nov 2007 Posted By: jegadesh Member Level: Gold
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2005 Anna University B.E Computer Science CS1301 – DATABASE MANAGEMENT SYSTEMS Question paper
________________________________________________________________________
B.E/B.TECH.DEGREE EXAMINATION, MAY/JUNE 2007.
Fifth Semester
(Regulation 2004)
Computer Science and Engineering
CS1301 – DATABASE MANAGEMENT SYSTEMS
(Common to Information Technology and B.E. Part – Time R 2005 Fourth Semester)
(Regulation 2004)
Time: Three hours Maximum: 100 marks
Answer ALL questions
PART A – (10 ´ 2 = 20 marks)
1. List five responsibilities of the DB Manager.
2. Give the limitations of E – R model? How do you overcome this?
3. Define query language. Give the classification of query language.
4. Why it is necessary to decompose a relation?
5. Give any two advantages of sparse index over dense index.
6. Name the different types of joins supported in SWL.
7. What are the types of transparencies that a distributed database must support?
Why?
8. What benefit is provided by strict – two phase locking? What are the
disadvantages results?
9. Briefly write the overall process of data warehousing
10. What is an active database?
PART B – (5 ´ 16 = 80 marks)
11. (a) (i) What are the types of knowledge discovered during data mining? Explain
with suitable examples. (8)
(ii) Highlight the features of object oriented database. (8)
Or
C3149
________________________________________________________________________
(b) (i) What is nested relations? Give example. (8)
(ii) Explain the structure of XML with suitable example. (8)
12. (a) (i) Compare file system with database system. (8)
(ii) Explain the architecture of DBMS. (8)
Or
(b) (i) What are the steps involved in designing a database application? Explain
with an application. (10)
(ii) List the possible types of relations that may exist between two entities.
How would you realize that into tables for a binary relation? (6)
13. (a) (i) What are the relational algebra operations supported in SQL? Write the
SQL statement for each operation. (8)
(ii) Justify the need for normalization with examples. (8)
Or
(b) (i) What is normalization? Explain 1NF, 2NF, 3NF and BCNF with suitable
example. (8)
(ii) What is FD? Explain the role of FD in the process of normalization.(8)
14. (a) (i) Explain the security features provided in commercial query languages.(8)
(ii) What are the steps involved in query processing? How would you estimate?
the cost of the query? (8)
(b) (i) Explain the different properties of indexes in detail. (8)
(ii) Explain various hashing techniques. (8)
15. (a) (i) Explain the four important properties of transaction that a DBMS must ensure
to maintain database. (8)
(ii) What is RAID? List the different levels in RAID technology and explain its
features. (8)
Or
(b) (i) What is concurrency control? How is it implemented in DBMS? Explain. (8)
(ii) Explain various recovery techniques during transaction in detail. (8)
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