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PROGRAM:
MCA (REVISED FALL 2012)
SEMESTER:
FIRST
SUBJECT
CODE & NAME: MCA1040- SYSTEM ANALYSIS AND DESIGN
CREDIT:
4
BK ID:
B1647
MAX. MARKS: 60
Q1.
Differentiate between Distributed Systems and Real-time Systems. 5+5
Answer:
Distributed Systems
In this type of system all the
computations are distributed among several processors. Distributed systems are
also referred as loosely coupled systems because here the processors do not
share memory or a clock.
Instead, each processor has its
own local memory. The processors communicate with one another through various
communication lines, such as high speed buses or telephone lines. The
processors in distributed system vary in size, function and are referred as
sites, nodes, and computers and so on depending on the
Q2. What do you
mean by system’s state of equilibrium? Also illustrate the process of
stabilizing system.
Answer:
A state of equilibrium exists for every natural and
artificial system with respect to its operating environment. Usually, you can
regard it as the “balance of power.” The state of equilibrium is based on how a
system subsists from its own:
·
Degree
of dominance
·
Subordination
by another systems
·
Q3. What is
structured design? Illustrate the process of modularization. Also discuss
modular design technique. [3+3+4] 10 marks
Answer.
Structured Design
Structured Design is a
methodology for breaking down a problem which can be a goal or a task or
a system into small scale
problems (Sub-problems) and solving these smaller problems. Sub-problems are
then arranged into a hierarchy that forms a succession of procedures. You can
consider structured design as a data-flow based methodology of solving a
problem. The approach starts with a system specification
Q.4: Write short notes on:
a. Data Dictionary
b. Data Element
c. Data Structure
d. Data Store
e. Data Flow
ANS:
Data Dictionary:
A catalogue comprising all data
elements, data structures and processes depicted in logical DFDs is known as a
data dictionary. Following are some of the terminologies used in DFD:
Q.5:
What are the different types of methods used for the
training of operators and users? Discuss.
ANS:
There are different methods for
organising training of operators and users. Most significant among them are as
follows:
·
Vendor and In-service Training: The best source of training is
the vendor who provides the equipment. Mainly, vendors provide extensive educational
programs included in their services. The courses provided by experienced
trainers and sales personnel, includes all aspects of utilising the equipment
such as how to turn it on and off, how to store and retrieve data, etc. One
session is
Q.6: Explain the concept of inheritance and polymorphism with
example.
ANS:
Concept of inheritance:
Inheritance is defined as a
method in which the subclass inherits the properties and attributes of a class.
In the process of inheritance the subclasses can be refined by adding some new
attributes and functionality.
A lot of repetitive coding is
there when numerous different classes supporting the same protocol are
executed. Inheritance permits the sharing of the implementation of operations
to most of the object-oriented systems instead of duplicate code in different
classes. By means of inheritance, one class can be
Get fully solved assignment, plz drop a mail with your sub code
computeroperator4@gmail.com
Charges for mba rs 125/subject and rs 700/semester only.
For other rs 125/subject only
if urgent then call us
on 08791490301, 08273413412
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