2009 Punjab Technical University B.C.A Database Management System Question paper
1 like2,932 views
This document outlines the structure and content of an exam for the Database Management System subject. [SECTION A] contains 10 short answer questions covering topics like physical database independence, database integrity, SQL, security, normalization, data types, schema architecture, relations, database administrator responsibilities, and concurrency. [SECTION B] contains 4 long answer questions asking students to compare data models, describe relational database design steps and pitfalls, explain the differences between relational algebra and calculus, discuss joins in DBMS with an example, explain the four forms of normalization with examples, and discuss distributed databases including the design steps.
![BCA (SEM. - 4th), MAY -2009
DATABASE MANAGEMENT SYSTEM
SUBJECT CODE: BC-402[N2]
TIME-03 Hours Maximum Marks: 60
Instruction to candidates:
1) Section – A is Compulsory.
2) Attempt any four questions from Section – B.
SECTION-A (10 X 2=20)
Q1)
(a) What do you mean by physical database independence?
(b) What is database integrity?
(c) Why SQL is a database query language?
(d) What are the security needs of the database?
(e) What is the need for normalization of data?
(f) Name the different data types available in SQL.
(g) Name the different levels in three schema architecture.
(h) What do you mean by a relation?
(i) What are the responsibilities of the database administrator?
(j) Explain concurrency.
SECTION-B (4 X 10=40)
Q2) Compare and contrast the three popular data models with respect to
their structure and implementation.
Q3) Describe the different steps in the design of a relational database.
Discuss also the pitfalls.
Q4) Explain in detail the difference between relational algebra and
relational calculus.
Q5) What do you mean by a join in DBMS? Explain its need with the help
of an example.](https://image.slidesharecdn.com/dbmspapersp-101009071534-phpapp01/85/2009-Punjab-Technical-University-B-C-A-Database-Management-System-Question-paper-1-320.jpg)
2009 Punjab Technical University B.C.A Database Management System Question paper
- 1. BCA (SEM. - 4th), MAY -2009 DATABASE MANAGEMENT SYSTEM SUBJECT CODE: BC-402[N2] TIME-03 Hours Maximum Marks: 60 Instruction to candidates: 1) Section – A is Compulsory. 2) Attempt any four questions from Section – B. SECTION-A (10 X 2=20) Q1) (a) What do you mean by physical database independence? (b) What is database integrity? (c) Why SQL is a database query language? (d) What are the security needs of the database? (e) What is the need for normalization of data? (f) Name the different data types available in SQL. (g) Name the different levels in three schema architecture. (h) What do you mean by a relation? (i) What are the responsibilities of the database administrator? (j) Explain concurrency. SECTION-B (4 X 10=40) Q2) Compare and contrast the three popular data models with respect to their structure and implementation. Q3) Describe the different steps in the design of a relational database. Discuss also the pitfalls. Q4) Explain in detail the difference between relational algebra and relational calculus. Q5) What do you mean by a join in DBMS? Explain its need with the help of an example.
- 2. Q6) Explain the four forms of normalization employed in relational database with appropriate examples. Q7) What do you mean by distributed databases? Discuss the steps involved in designing such databases. ***