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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

11 : Which is an example of pattern recognition in computational thinking?

1 : Designing a new algorithm for every problem

2 : Identifying trends in data to predict future outcomes

3 : Writing a program in multiple programming languages

4 : Solving problems without breaking them into smaller parts

12 : Which of the following best describes computational thinking?

1 : The process of performing mathematical calculations

2 : Breaking down a problem into smaller, manageable parts

3 : Creating hardware solutions for computing

4 : Writing complex algorithms only

13 : What is abstraction in computational thinking?

1 : Solving a problem step-by-step without simplification

2 : Focusing on the most important details and ignoring irrelevant information

3 : Creating detailed models for real-world problems

4 : Using complex language and jargon to explain problems

14 : Which technique uses pictorial representation of solutions?

1 : Prototype

2 : Pseudocode

3 : Flowchart

4 : Debugging

15 : The diamond symbol in flowcharts represents:

1 : Input/output

2 : Decision making

3 : Processing

4 : Start/End

16 : Which flowchart symbol is used for start/end?

1 : Terminal (Oval)

2 : Connector

3 : Process (Rectangle)

4 : Decision (Diamond)

17 : What is decomposition in computational thinking?

1 : Creating a set of instructions to follow

2 : Breaking a complex problem into smaller, easier-to-solve parts

3 : Identifying patterns between problems

4 : Ignoring unnecessary details and focusing on key aspects

18 : How many core components of computational thinking are there?

1 : 1

2 : 2

3 : 3

4 : 4

19 : Which is a graphical representation of an algorithm?

1 : Matrix

2 : Graph

3 : Flowchart

4 : Solution

20 : What is the purpose of a parallelogram in flowcharts?

1 : Decision

2 : Connector

3 : Input/output

4 : Start/End

21 : Which computational thinking step involves creating a sequence of steps to solve a problem?

1 : Decomposition

2 : Abstraction

3 : Pattern Recognition

4 : Algorithm Design

22 : What is the purpose of an oval shape in flowcharts?

1 : Decision

2 : Process

3 : Connector

4 : Start/End

23 : Breaking down larger problems into smaller manageable ones is called:

1 : Abstraction

2 : Decomposition

3 : Algorithm design

4 : Pattern Recognition

24 : The diamond symbol in flowcharts is used for:

1 : Solution

2 : Decision making

3 : Verification

4 : Test data

Computer 9th MCQs || Ilam Ghar