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DRIVE
SUMMER 2016
PROGRAM
MASTER OF BUSINESS ADMINISTRATION (MBA)
SEMESTER
III
SUBJECT CODE & NAME
MI0034 – DATABASE MANAGEMENT SYSTEM
1 What is Database Management System
(DBMS)? Briefly explain the different components of DBMS.
Explain
Database Management System
Explain
the components of DBMS
Answer: The major
component in the database is “data.” Data is a raw fact that can be recorded
and has specific meaning. The processed data is called information. For
example, the combination of letters “E” “L” “E” “P” “H” “A” “N” “T” has no
meaning to us unless it is used as a
2 With a neat diagram explain the
concept of three-schema architecture.
Diagram
Explain
the concept of three-schema architecture
Answer: The
Three-schema Architecture has three levels of architecture, an internal level,
a Conceptual level and an External level. The three schema architecture is also
referred as Client Server Architecture. In this architecture the major
advantages lies in that, the division of the
3 a. Define SQL
b. Explain the different types of SQL
statements
a.
Defining SQL
b.
Defining four different types of SQL statements
Answer: A) SQL is a relational database language used to
communicate with a database. The American National Standards Institute declared
the standard language for RDBMS. Accordingly, the common relational database management
systems that SQL uses are Oracle, Sybase, Microsoft SQL Server, Access, and so
on. When the database is structured using the relational data
4. a. Define Distributed Database
Management System (DDBMS).
b. Elaborate advantages and
disadvantages of distributed database management system.
a.
Define distributed database management system
b.
Explain four advantages and four disadvantages of distributed database
management system
Answer: a) In a centralized database
system, all system components such as data, DBMS software, storage devices
reside at a single computer or site, where as in distributed database system
data is spread over one or more computer connected by a network. Distributed
database is thus a set of databases stored on multiple computers but it appears
to a user as a single database. The
5 Define client–server model ? Briefly
explain the advantages of client–server model
a.
Define client-server model with different parts
b.
Listing 3 advantages of client–server model
Answer: Client–server model
The client–server model is
basic to distributed systems; it allows clients to make requests that are
routed to the appropriate server in the form of transactions. The client–server
model consists of three
6 Briefly
explain the basic concepts of object-oriented data model.
Explain
the basic concepts of object-oriented data model
Answer: A data model is a logic organisation of the real-world
objects (entities), constraints put on them and the relationships that exists
among objects.
The basic
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