smu mba assignments summer 2014 by www.smuhelp.com

1. GetAnswersonwww.smuHelp.com
ASSIGNMENT
DRIVE SUMMER DRIVE 2014
PROGRAM MBADS (SEM 3/SEM 5)
MBAFLEX/ MBA (SEM 3)
PGDISMN (SEM 1)
SUBJECT CODE &
NAME
MI0034- DATABASE MANAGEMENT SYSTEMS
BK ID B1217
CREDIT 4
MARKS 60
Note: Answer all questions. Kindly note that answers for 10 marks questions should be
approximately of 400 words. Each question is followed by evaluation scheme.
Q.No Questions Marks Total Marks
1 Suppose the employee name, employee id, designation, salary, attendance and address of
any employee has to be stored in a database. You can store these data in a sequential
address book or it can be stored on a hard disk, using a computer and software like
Microsoft Excel. Using this example define a database. List and explain the various
procedures carried on in a DBMS with a detailed example of the database.
A defining a database 1
10
Listing the 3 procedures 3
Explanation 3
One examples for each of them 3
2 Level 2 cache has got higher latency than Level 1 by 2 times to 10 times in 512 KiB
or more. Its value is nearer to kilobyte. This is one of the levels of memory
hierarchy. Define memory hierarchy. What are the other levels in memory
hierarchy? Explain in one life each for each of them.
A defining memory hierarchy 1
10
listing the 6 levels 3
explanation 6
3 EMPLOYEE
EMP_ID NAME PROJECT SALARY DEPT_NUM
MUL1 Raashi PR2 30000 1
MUL2 Taashi PR1 43000 2
SMU1 Raksha PR3 25000 3
SMU2 Vidhesh PR2 50000 2
SMU3 Akhilesh PR1 83000 2
Get Answers on www.smuHelp.com

2. GetAnswersonwww.smuHelp.com
DEPARTMENT
DEPT_ID DNAME PLACE
1 HRM Bangalore
2 MIS Bangalore
3 Research Chennai
4 Finance Bangalore
Using these tables answer the following question
a. If we want to see all the employees with salary between 40000 and 50000, which
query can be used?
b. Select employee name from EMPLOYEE table, whose name starts with R
c. Explain aggregate functions and grouping in detail
A a. Query based in BETWEEN operator 2
10
b. Query based in LIKE condition 3
c. Explaining aggregate functions on select
statement, with an example, showing the
output of the query, explaining having
clause, with example
5
4 Consider a book is written by a particular author. And you have to explain to
someone about the relationship that exists between the author and the book.
Normally you can draw a diagram and show the relation. These diagrams are called
entity-relationship diagram in which book is one entity, author is one entity, and the
relationship that exists between the two entities is written. Likewise explain the
various notations used to represent the ER diagram.
A listing the notations with diagrams 5
10explaining each one of them in one line with
example each
5
5 Consider any database of your choice (may be simple banking database/forecasting
database/project management database). Show the deduction of the tables in your database
to the different types of normal forms
A Choosing a proper database 2
10Explaining the 5 normal forms with respect to the
database chosen
8
6 Read the following case study thoroughly and answer the following questions:
Laxmi bank is one of the largest private sector banks of India. It has an extensive network
of more than 200 branches. It offers banking services to retail as well as corporate clients.
The bank faced a challenge in integrating multi-pronged database management system into
a centralized system. The IT department of the bank also realized that the computing
capabilities of its PCs and servers were not proportionately distributed among all its
branches. Each branch had its database management system stored in a traditional way on
Get Answers on www.smuHelp.com

3. GetAnswersonwww.smuHelp.com
the disk. The total cost of operating and maintaining the current IT infrastructure was very
high and the fundamental shortcomings added to the costs. Moreover, there were also
recurrent problems due to the malfunctioning of the currently operational database
management system. Therefore, the bank’s top management decided to fix the problem and
operationalise a robust database management system. The bank hired an external database
technology consulting firm called AKPY Info systems Limited.
AKPY divided the entire IT infrastructure of the bank around two verticals. The retail
banking vertical and the corporate banking vertical. All the individual database servers from
the individual branches were removed. The entire database system was made virtual such
that the managers and the staff can access only the required information (related to retail
banking or corporate banking) from the respective centralised data centers. There were only
two such centralised data centers (one for retail banking and another for corporate
banking) that were managed centrally. Staff and managers could access the information
through their PCs and laptops. Centralised database management system complemented the
security system by bringing in authentication through a unified ID management server.
Managers and officers of the bank were able to process half a million transactions per
month in real time after the new implementation. There were significant savings in the cost
and also in the consumption of power. Now there were no problems with regard to
imbalances in the load across various network servers. Due to centralised data management,
top management could keep an eye on the functioning of various branches. Hence the cases
of fraud and cheating reduced considerably. The bank managers could also process the loan
applications in reduced time since the customer’s previous records could be accessed at the
click of the button and approval from the higher authorities could be obtained in real time.
Moreover the new system also brought in many applications that helped local managers in
the decision making process.
a. List the uses of centralized data management
b. What steps Laxmi bank need to take if it were to change its centralised database
system to a distributed database system in future?
A a. Listing the uses from the from the case
study
2
10
b. Explaining about data fragmentation,
replication and allocation techniques
6
Is it possible to replicate the centralised
database management model of the bank
in a manufacturing concern? Give reasons.
2
*A-Answer
Get Answers on www.smuHelp.com