B.Sc. II (Semester III) Examination, 2018
Computer Science (CBCS) (Paper II)
Software Engineering
Day and Date Saturday, 1-12-2018 Total Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions are compulsory.
Figures to the right side indicate full marks.
1. Choose the correct alternatives. 14
The inter-connections and interaction between the subsystems are called
Environment links Connecting links
Interfaces Control lines
system is an orderly arrangement of independent ideas.
Open Conceptual Artificial Physical
quality of software is related with the extent to which access of
software or data by unauthorized access can be controlled.
Interoperability Integrity
Visibility Portability
Which of the following model is not suitable accommodating any changes
Prototyping Spiral Waterfall RAD
System maintenance phase of SDLC includes
Removal of errors Cost and benefit analysis
Updations Both a c
In a decision table, for N conditions, there will be combinations
of conditions.
2N2 2N 2N N2
External entities may be a
Source of input data only
Source of input data or destination of result
Destination of result only
Repository of data
In ERD, if an attribute can be split into components then it is called as
Composite attribute Derived attribute
Multivalued attribute Stored attribute
Facts expressed in quantitative form are termed as
Records Data
Requirements Information
10) If the effect in one module cause defect in another module then it is called as
Low coupling Low cohesion
Ripple effect Triple effect
11) Detailed study of existing system is referred to as
System planning Design DFD
Feasibility study System analysis
12) is an agreement between system developer and the end user.
Requirement anticipation Requirement investigation
Requirement specification Both a and c
13) are sometimes referred as 'Bubble Diagram'.
Flowchart ER-Diagram
Decision table DFD
14) In RAD model, the components or functions are developed
one after another parallel
slowly both a and b
2. Answer the following (any 8
What is open and closed system
What is normalization
Draw the symbols of DFD.
What is the purpose of HIPO chart
Which are the types of decision table
Write notes on (any 6
White Box Testing.
Cohesion.
Questionnaire.
3. Answer the following (any 8
Draw a system flowchart for College admission system.
Explain following qualities of software
Performance
ii) Productivity.
Design an input screens for Library system.
Answer the following (any 6
Who is system analyst Explain the various roles played by the system
analyst.
Differentiate between Logical DFD and Physical DFD.
4. Answer the following (any 10
What is Data Dictionary Explain the various contents of Data dictionary.
Explain different phases of System Development Life Cycle.
What is system maintenance Explain the categories of maintenance.
Answer the following (any 4
What is prototyping model Explain in detail.
Draw a decision tree for the information given below
A company decides to give Diwali bonus to all the employees for which
the management has divided the employees into 3 categories namely
Administrative Staff Office Staff Workers and considered
following rules
If the employee is permanent and belongs to AS category the bonus
amount is 3 months salary.
If the employee is permanent and belongs to OS category the bonus
amount is 2 months salary.
If the employee is permanent and belongs to W category the bonus
amount is 1 month salary.
If the employee is temporary then half of the amount is given to them
as per the permanent employee's bonus amount.
5. Answer the following (any 14
Draw a CLD and first level DFD for Payroll system.
Define the term Entity, Attribute and Relationship. Explain types of
relationship with example.
Explain the top-down incremental implementation. State its advantages
and disadvantages.