B.C.A. (Semester II) (CBCS) Examination Nov/Dec-2018
SOFTWARE ENGINEERING
Time: 2½ Hours Max. Marks: 70
Instructions: All questions are compulsory.
Figures to the right place indicate full marks.
Q.1 Choose correct alternatives: 14
A data flow can
Only enter a data store Only leave a data store
enter or leave data store None
In a decision trees branches represents
Name of process Conditions
Actions to be performed Rules
The First step in preliminary investigation is generally to
Evaluate feasibility
Perform fact finding
Understand the problem
Estimate project development time and cost
Waterfall approaches have stages.
5 3
6 7
Skeleton of system is developed first and components are added later this is
called integration.
Up down Bottom up
Top up Top down
The first step in the System Development Life Cycle is
Analysis
Design
Development Documentation
Problem identification
Software Engineering is the systematic approach to the
Development of Software Maintenance of Software
Operation of Software All of the above
The model is useful to guide the risks in the project.
Prototyping Spiral
SDLC Waterfall
Feasibility study is carried out by managers of the Organization
True False
10) is tabular method for describing the logic of the decisions to be
taken.
Decision tables Decision tree
Decision method Decision data
Page 2 of 2
SLR-SH-8
11) In a DFD External entities are represented by a
Rectangle Square
Diamond box Circle
12) Cost-benefit Analysis is performed during
Analysis phase Design phase
Feasibility Study phase Implementation phase
13) is the main source of External elements.
Control Feedback
Environment Boundaries
14) Which of the following is not a Technique to collect facts?
Third party enquiry Interviews
Record Reviews Questionnaires
Q.2 Answer any Seven of the following:- 14
What is Configuration of the system?
What is Expert system?
What is System? What are its types?
What is file? What are it's types?
What are the different approaches used while constructing system?
What is feasibility study?
What is full form of MIS, EIS, TPS ES?
What is Normalization? Mention its different forms.
What are the benefits of Structured English?
Q.3 Write the Answer of the following questions:- (Any Two) 10
What is data? What are the different techniques to collect proper data?
What is decision tree? Explain with example.
What is flow chart? Explain with different symbols.
Explain prototyping with suitable diagram. 04
Q.4 Answer any two of the following:- 14
What are the advantages of Incremental approach over Traditional approach
of System Construction, explain in detail?
Who is System Analyst? What are the Skills require for him? Explain his role.
Explain different stages of system development life cycle.
Q.5 Answer any two of the following:- 14
What is Software Engineering'? What are its qualities?
Explain decision table with suitable example.
What is DFD? Draw explain different symbols of it.