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1 : Why is problem decomposition important in computational thinking?

1 : (a) It simplifies problems by breaking thern down into smaller, more manageabl parts.

2 : (b) It complicates problems by adding more details.

3 : (c) It eliminates the need for solving the problem.

4 : (d) It is only useful for simple problems.

2 : Which term refers to the process of ignoring the details to focus on the main idea?

1 : (a) Decomposition

2 : (b) Pattern recognition.

3 : (c) Abstraction

4 : (d) Algorithm design

3 : Which of the following best defines computational thinking?

1 : (a) A method of solving problems using mathematical calculations only.

2 : (b) A problem-solving approach that employs systematic, algorithmic and logical thinking.

3 : (c) A technique used exclusively in computer programming.

4 : (d) An approach that ignores real-world applications.

4 : Algorithms are:

1 : (a) Lists of data

2 : (b) Graphical representations

3 : (c) Step-by-step instructions for solving a problem

4 : (d) Repetitive patterns

5 : Which of the following is the first step in problem-solving according computational thinking?

1 : (a) Writing the solution

2 : (b) Understanding the problem

3 : (c) Designing a flowchart

4 : (d) Selecting a solution

6 : Pseudocode is

1 : (a) A type of flowchart

2 : (b) A high-level description of an algorithm using plain language

3 : (c) A programming language

4 : (d) A debugging tool

7 : Flowcharts are used to.

1 : (a) Code a program

2 : (b) Represent algorithms graphicall

3 : (c) Solve mathematical equations

4 : (d) Identify patterns

8 : Which of the following is a principle of computational thinking?

1 : (a) Ignoring problem understanding

2 : (b) Problem simplification

3 : (c) Avoiding solution design

4 : (d) Implementing random solutions

9 : Dry running a flowchart involves:

1 : (a) Writing the code in a programming language

2 : (b) Testing the flowchart with sample data

3 : (c) Converting the flowchart into pseudocode

4 : (d) Ignoring the flowchart details

10 : Pattern recognition involves:

1 : (a) Finding and using similarities within problems

2 : (b) Ignoring repetitive elements

3 : (c) Breaking problems into smaller pieces

4 : (d) Writing detailed algorithms

Computer 9th MCQs || Ilam Ghar