B.C.A. (Semester IV) (CGPA) Examination, 2017
SOFTWARE ENGINEERING
Day Date: Wednesday, 12-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
N.B. Q.1 and Q.7 are compulsory.
Attempt any two questions from Q. 3 and 4.
Attempt any one question from Q. 5 and 6.
Figures to the right indicate full marks.
Q.1 Choose correct alternatives: 14
The most important feature of spiral model is
Requirement analysis Risk management
Quality management Configuration management
In a DFD external entities are represented by a
Rectangle Ellipse
Diamond Box Circle
The objective of testing is
Debugging To gain modularity
To analyze system Programming
Changes made to the system to reduce the future system
failure chances is called
Preventive Maintenance Adaptive Maintenance
Corrective Maintenance Perfective Maintenance
DFD stands for Data Flow Diagram.
True False
Cost-Benefit Analysis is performed during
Analysis phase Design phase
Feasibility study phase Implementation phase
Which phase is not available in software life cycle?
Coding Testing
Maintenance Abstraction
Structured charts are a product of
Requirements gathering Requirements analysis
Design Coding
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SLR-U 16
Software engineering is the systematic approach to the
Development of software Maintenance of software
Operation of software All of these
10) In decision trees branches represent actions to be performed.
True False
11) Primary goal of software engineering is to improve the
Technique Quality
Both a and b None of these
12) the main source of external elements.
Control Feedback
Environment Boundaries
13) The process in which existing data is loaded into a new system is
referred as data conversion.
True False
14) To run the old system and the new system at the same time for a
specified period, the system implementation approach used is

pilot phase
parallel direct
Q.2 What is data capture? State its objective. 05
Explain the role of system analyst. 05
What do you mean by 'configuring the system'? 04
Q.3 Explain the components of data dictionary. 05
Explain white box testing. 05
Give the advantages of normalization. 04
Q.4 Explain different symbols used in DFD. 05
Explain different qualities of software. 05
Write note on need of testing. 04
Q.5 What is system? Explain different types of system. 07
Draw CLD and 1st level DFD for Library system. 07
Q.6 Explain decision table with suitable example. 07
Explain bottom-up incremental implementation. State its
advantages and disadvantages.
07
Q.7 Write short notes on the following (Any 14
Feasibility Study with its need
Data Validation
Principles of flowcharting