M.C.A MAGADH UNIVERSITY QUESTION, 2014-2017 (Third semester) Database Management systems

M.C.A MAGADH UNIVERSITY QUESTION, 2014-2017 (Third semester) Database Management systems
M.C.A MAGADH UNIVERSITY QUESTION, 2014-2017 (Third semester) Database Management systems

                                                                             2014-2017
                                                                          Time: 4 hours
                                                                        Full Marks: 80
                                                               Answer any five questions.

1. What do you understand by architecture in DBMS? Explain the tree levels of architecture.

2. Define the term data-independence? What is the difference between logical data independence and physical data independence? Which one is hardes to achieve? Why?

3. What is relational algebra and what are its uses? Which are the relational algebraic operations developed specifically for relational database?

4. What are the different database models and what are their advantages and disadvantages.

5. What is SQL ? What are Data control language (DCL) Commands? Explain with example.

6. Explain the network database model? What are the advantages and disadvantages of the network database model?

7. What is normalization? What are its objectives? Explain 2nd, 3rd and 4th normal form.

8. Why the database backup is necessary ? Describe different database backup techniques. Describe the role of DBA in database backup and recovery.

9. What is locking? What are the different types of locks? What are the disadvantages of the basic locking protocol?

10. What is denormalization? What do you perform denormalization? What are the benefits of denormalization?

Comments

Post a Comment

Popular posts from this blog

MCA MAGADH UNIVERSITY QUESTION (2010-2013) (Fifth Semester) Artificial Intelligence and Application

Image
MCA MAGADH UNIVERSITY QUESTION (2010-2013) (Fifth Semester) Artificial Intelligence and Application                                                                         Time: 4 hours                                                                        Full Marks: 80                                                         The questions are of equal value.                                                             Answer any five questions. 1. Define artificial intelligence. Explain the importance of AI and also explain the related fields of AI. 2. Explain how the alpha-beta algorithm is a better way to search game trees. These two algorithms depend on certain assumptions about how the game is played? What are they? 3. What important knowledge products are currently being marketed like other commodities? What are some new knowledge products likely to be sold within the next ten years? 4. Write a LISP program to convert centigrade temperatures to Fahrenheit. 5. Exp
Read more

M.C.A MAGADH UNIVERSITY QUESTION, (2013-2016) (Third semester) JAVA

Image
M.C.A MAGADH UNIVERSITY QUESTION, (2013-2016) (Third semester)  JAVA                                                                                2013-2016                                                                            Time: 4 hours                                                                           Full Marks: 80                                                                 Answer any five questions. 1. What is java? Discuss the features of java? Explain why java is platform independent? Also explain advantages of platform independence. 2. Define constructor . What are the characteristics of constraints? How are copy constructor and default constructor used in java? Explain with example. 3. What is class? How to define a class and its object explain? Discuss function overloading and overriding? 4. What is a vector? How is it different from an array? 5. What are the abstract classes in java and how it is different from the inheritance? 6. What
Read more

MCA MAGADH UNIVERSITY QUESTION Fifth semester (2003-2006) Internet and Web Designing

Image
MCA MAGADH UNIVERSITY QUESTION Fifth semester (2003-2006) Internet and Web Designing                                                                          Time: 4 hours                                                                          Full marks: 80                                                                   1. Answer any two of the following short questions:      a) Expand the following:-      i)  FTP      ii) SMTP      iii) HTTP      iv) NNTP       v) IMAP      vi) HTML      vii) CGI       viii) DHTML       ix) PERL       x) ASP         b) What are the difference between IMAP  and POP?     c) Discuss brief history of Web.     d) wlhat is the purpose of FTP? 2. a) What is the purpose of an e-mail server?     b) Why is e-mail client required?     c) Explain how a user gets connected the internet? 3. a) Describe what is meant by static web pages?     b) Is dynamic web pages one same as active web pages?     c) what role do forms play in we
Read more