Introduction to Programming and Algorithms Quiz - CBSE Class 9 Computer Science

Free practice quiz: Introduction to Programming and Algorithms (CBSE Class 9 Computer Science). 17 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. Which is the correct order of phases in the software development lifecycle?

   1. Design, Implementation, Testing, Maintenance, Planning
   2. Planning, Design, Implementation, Testing, Maintenance
   3. Design, Planning, Testing, Implementation, Maintenance
   4. Implementation, Design, Testing, Planning, Maintenance
   Show answer

   Answer: B. Planning, Design, Implementation, Testing, Maintenance

   The correct order is Planning, Design, Implementation, Testing, and Maintenance as per conventional software development lifecycles.

2. What will be the result of the following code: len('Algorithm')

   1. 8
   2. 9
   3. 10
   4. 7
   Show answer

   Answer: B. 9

   The len() function returns the number of characters in a string, including spaces. 'Algorithm' has 9 characters.

3. Which of the following is NOT a characteristic of a good algorithm?

   1. Ambiguity
   2. Finiteness
   3. Effectiveness
   4. Definiteness
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   Answer: A. Ambiguity

   A good algorithm should be clear and unambiguous, meaning it should not have ambiguity.

4. Which Python keyword is used for creating functions?

   1. def
   2. fun
   3. function
   4. create
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   Answer: A. def

   In Python, the 'def' keyword is used to define a function.

5. What is typically the first step in creating an algorithm?

   1. Writing code
   2. Identifying the problem
   3. Debugging
   4. Testing
   Show answer

   Answer: B. Identifying the problem

   The first step in creating an algorithm is to clearly identify and define the problem to be solved.

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