Software Engineering Nptel Week 6 Assignment Answers
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Software Engineering Nptel Week 6 Assignment Answers (July-Dec 2024)
Q1.A data flow diagram represents which one of the following?
a. The conditions based on which data items may be processed
b. The order in which different activities are carried out
c. The transformation of data through processing stations
d. The order in which various functions of a program are invoked
e. Interaction among different modules of a program
Answer: c. The transformation of data through processing stations
Q2.For a given programming problem, a DFD (data Flow Diagram) model depicts which of the
following?
a. Flow of data
b. Flow of control
c. Flow of decisions
d. Flow of atomic conditions
e. Sequence of interaction among processes
f .Interaction among modules
Answer: a. Flow of data
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These are Software Engineering Nptel Week 6 Assignment Answers
Q3.Which of the following statements are not true of a data flow diagram (DFD) model?
a. Itis a hierarchical diagram.
b. It represents code structure
c. It does not represent decisions and control flows.
d. It represents decomposition of functions and data into finer forms.
e. It represents the sequence in which the different processes are invoked
Answer: b). It represents code structure // e). It represents the sequence in which the different processes are invoked
Q4. In a procedural design approach, during the detailed design stage, which of the following is
undertaken?
a. Module structure is designed
b. Data flow representation is developed
¢. Data structures and algorithms for the individual modules are designed
d. Structure chart is developed
e. Module call relationships are designed
f. Module interactions are designed
Answer : c). Data structures and algorithms for the individual modules are designed
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These are Software Engineering Nptel Week 6 Assignment Answers
Q5.Which one of the following is true of a function-oriented design approach?
a. Top-down
b. Bottom-up
c. Mixed-in
d. Bottom-out
e. Bottom-up at system level and top-down at module level
Answer: a). Top-down
Q6.A context diagram should not represent which of the following?
a. External entities.
b. Module Interactions
c. Data input to the system by the external entities,
d. Output data generated by the system.
e. Module structure
Answer: b). Module Interactions // e). Module structure
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These are Software Engineering Nptel Week 6 Assignment Answers
Q7.a. External entities are appearing at the context level
b. Input/Output occurring at the context level
c. Data item name missing on a data flow arrow
d. A data store appearing at the context level
e. Solid arrows have been used in place of dashed arrows
f. Name of one entity is missing
Answer: d). A data store appearing at the context level // f). Name of one entity is missing
Q8. Which of the following information are not present in a structure chart model of a software
system?
a. Various modules making up the system,
b. Module call structure
c. Parameters passed among different modules
d. Data structures and algorithms of the modules
e. How the data is transformed by the functions
Answer: d). Data structures and algorithms of the modules // e). How the data is transformed by the functions
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These are Software Engineering Nptel Week 6 Assignment Answers
Q9.What is wrong with the following DFD?
a. Unbalanced
b. Presence of synchronous data flow
c. Presence of asynchronous data flow
d. Data flow arrows are not numbered
e. Presence of control information
Answer: e). Presence of control information
Q10.‘Which of the following can be said about the following DFD (data flow diagram)?
a. The bubble Display number processes numbers at the same rate as the bubble
Read-numbers
b. The bubble Validate numbers processes numbers at the same rate as the
bubble Read-numbers
c. The bubble Display number processes numbers at a different rate as
compared to the bubble Read-numbers
d. The bubble Validate number processes numbers at a different rate as
compared to the bubble Read-numbers
e. The rate at which the bubble Display numbers processes numbers is the as
the rate at which Validate numbers processes numbers.
Answer: a). The bubble Display number processes numbers at the same rate as the bubbleRead-numbers // d). The bubble Validate number processes numbers at a different rate as
compared to the bubble Read-numbers
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These are Software Engineering Nptel Week 6 Assignment Answers
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