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1. JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Master of Computer Application (MCA)
Paper Code: MCA - 103
Paper Title: Database Management System
Last Date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students. It carries 5
Marks. (Word limits 50-100)
Section-A
(i) What do you mean by database? Explain
(ii) Explain with examples the concept of Mapping Cardinalities in DBMS
(iii) Explain the entitites and classes in RDBMS.
(iv) Explain different database anomalies.
(v). What is DDL and DML? Explain with examples.
Section-B
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q1. What is SQL? Explain different characteristics of SQL.
Q2. Explain three different types of database architectures in detail.
Q.3. Write short notes on the following:-
(a) Entity - Relationship Diagram
(b) Normalization
(c) Advantages of SQL
(d) Cursors in SQL
(e) Role & Functions of Database Administrator

2. JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Master of Computer Application (MCA)
Paper Code: MCA - 103
Paper Title: Database Management System
Last Date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students. It carries 5
Marks. (Word limits 50-100)
Section-A
(i) What is Data Model? Explain
(ii) Explain with examples the concept of Strong and Weak Entities.
(iii) What are Domains and Relations? Explain.
(iv) Differentiate between the primary and foreign keys?
(v). What are the web services of database?
Section-B
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q1 With the help of diagram, explain Data base management system structure in detail.
Q2. Explain the concept of Specialization, Generalization and Aggregation in DBMS.
Q.3. Write short notes on the following:-
(a) Concept of Keys
(b) Relationships and Types of relationships
(c) Tuple Relational Calculus
(d) Embedded SQL
(e) RAID