Short
Answer Questions chapter-5 Computer Science (C++ Python) CBSE class-XI
1.
What do you mean by problem?
Ans: The problem
is a kind of barrier to achieve something and problem solving is a
process to get that barrier removed by performing some sequence of activities.
2.
What are the Open Problems?
Ans: There are some
problems which have no solution and these problems are called Open Problems.
3.
What is problem specification?
Ans: The process of
problem solving starts with the problem specifications and ends with a concrete
solution.
4.
How is programming a problem solving technique?
Ans: Programming is
a best problem solving techniques, which consists of four steps. They are;
·
Understand
the problem;
·
Devise
a plan;
·
Execute
the plan; and
·
Evaluate
5.
Give the names of various problem solving approaches
or Software Development Process Models.
Ans:
The few approaches which are also referred as
Software Development Process Models are:
·
Waterfall model,
·
Incremental model,
·
V-model,
·
Iterative model,
·
RAD model,
·
Agile model,
·
Spiral model and
·
Prototype model.
6.
What are the phases of any Software development life
cycle model?
Ans: Every Software
Development Life cycle Model has following six phases:
·
Requirement gathering and analysis - Identifying minimum number of inputs required for output
·
Design- step by step
solution for the problem
·
Implementation or coding- breaking down solution into simple steps (modular approach)
·
Testing- test the program
·
Deployment- program deploying
·
Maintenance-
maintenance of program after deployment
7.
Define the algorithm?
Ans:
Algorithm
is a sequence of activities to be processed for getting desired output from a
given input.
8.
What is Flowchart?
Ans: The flowchart
is a diagram which visually presents the flow of data through processing
systems.
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