Computational Thinking, Algorithms and Programming Quizzes

Question 1

Which of these is NOT a desirable characteristic of an algorithm?

Accepted Answer

Unpredictability

Answer

Efficiency

Answer

Clarity

Answer

Robustness

Question 2

Which of the following is NOT a desirable characteristic of an algorithm?

Accepted Answer

Platform dependency

Answer

Efficiency

Answer

Correctness

Answer

Clarity

Question 3

What is the main purpose of an algorithm in computer science?

Accepted Answer

Provide a step-by-step method to solve a problem

Answer

Describe the output of a program

Answer

Translate natural language into machine code

Answer

Store data in a structured manner

Question 4

Which of the following is a disadvantage of using abstraction in programming?

Accepted Answer

Increased code execution time

Answer

Improved code readability

Answer

Reduced code complexity

Answer

Increased code reusability

Question 5

In object-oriented programming, what's the primary goal of encapsulation?

Accepted Answer

Grouping related data and methods into objects

Answer

Creating new objects that inherit from existing ones

Answer

Enabling objects to respond differently to the same message

Answer

Allowing functions to call themselves

Question 6

Which of the following is a potential drawback of using abstraction in software development?

Accepted Answer

Abstraction complicates debugging due to hidden implementation details.

Answer

Abstraction simplifies program complexity by focusing on essential aspects.

Answer

Abstraction enables code reuse through incorporating abstract components into other programs.

Answer

Abstraction enhances program performance by reducing code lines.

Question 7

Which of these is NOT a core principle of computational thinking?

Accepted Answer

Generalization

Answer

Abstraction

Answer

Decomposition

Answer

Algorithms

Question 8

Which algorithm characteristic ensures that the instructions are clearly defined and have only one interpretation?

Accepted Answer

Unambiguous

Answer

Finite

Answer

Efficient

Answer

Effective

Question 9

Which characteristic of an algorithm guarantees that every instruction has a clear and precise meaning?

Accepted Answer

Unambiguous

Answer

Finite

Answer

Well-structured

Answer

Efficient

Question 10

Which of the following is NOT a key aspect of computational thinking?

Accepted Answer

Memorizing large amounts of data

Answer

Identifying patterns and relationships

Answer

Breaking down problems into smaller steps

Answer

Representing data in different forms

Question 11

Which of these is NOT a feature of a well-designed algorithm?

Accepted Answer

Ambiguity

Answer

Clarity

Answer

Efficiency

Answer

Modularity

Question 12

Which characteristic is NOT a feature of a well-designed algorithm?

Accepted Answer

Ambiguity and multiple interpretations

Answer

Clarity and simplicity

Answer

Efficiency and effectiveness

Answer

Generality and applicability

Question 13

Which of the following is NOT a fundamental data structure commonly used in programming?

Accepted Answer

Object

Answer

Array

Answer

Linked List

Answer

Tree

Question 14

In computing, abstraction refers to:

Accepted Answer

Focusing on key features while ignoring details

Answer

Breaking a problem into smaller parts

Answer

Storing data in a simplified format

Answer

Writing instructions for a computer

Question 15

Which concept is NOT a fundamental principle of computational thinking?

Accepted Answer

Generalization

Answer

Abstraction

Answer

Decomposition

Answer

Algorithms

Question 16

Which characteristic is NOT desirable in a well-designed algorithm?

Accepted Answer

Ambiguity

Answer

Efficiency

Answer

Clarity

Answer

Correctness

Question 17

Which of these is NOT a fundamental concept in computational thinking?

Accepted Answer

Linear algebra

Answer

Abstraction

Answer

Decomposition

Answer

Algorithms

Question 18

Which of the following is NOT a core concept of computational thinking?

Accepted Answer

Parallel processing

Answer

Abstraction

Answer

Pattern recognition

Answer

Heuristic search

Question 19

Which of the following is **not** a data structure commonly used in programming?

Accepted Answer

Function

Answer

Array

Answer

Linked List

Answer

Hash Table

Question 20

Which characteristic is desirable in well-designed algorithms?

Accepted Answer

Reusability

Answer

Lack of clarity

Answer

Inefficient execution

Question 21

Which of the following is NOT a core principle of computational thinking?

Accepted Answer

Trial and error

Answer

Decomposition

Answer

Abstraction

Question 22

Computational thinking involves breaking down a problem into smaller, more manageable pieces. Which of the following is NOT a key component of computational thinking?

Accepted Answer

Programming

Answer

Abstraction

Answer

Decomposition

Question 23

Which characteristic of an algorithm can cause incorrect results or unpredictable behavior?

Accepted Answer

Ambiguity

Answer

Correctness

Answer

Efficiency

Answer

Generality

Question 24

What is a defining characteristic of an algorithm?

Accepted Answer

It always produces a definite result.

Answer

It is easy to code.

Answer

It can only be written in one programming language.

Answer

It must be highly efficient.

Question 25

Which of the following is NOT an advantage of using abstraction in programming?

Accepted Answer

Directly enhances code efficiency by optimizing its performance.

Answer

Simplifies code comprehension by concealing unnecessary details.

Answer

Diminishes code complexity by dividing intricate problems into smaller, manageable units.

Answer

Enhances code maintainability by facilitating modifications or updates to specific program components.

Question 26

In computational thinking, pattern recognition involves:

Accepted Answer

Identifying recurring patterns within data

Answer

Examining individual data points separately

Answer

Solely relying on human judgment

Answer

Ignoring the context and background of the data

Question 27

Which code optimization technique decreases loop iterations by leveraging specific loop patterns?

Accepted Answer

Loop fusion

Answer

Branch prediction

Answer

Dynamic programming

Answer

Memoization

Question 28

Which feature is NOT a characteristic of object-oriented programming?

Accepted Answer

Bottom-up design approach

Answer

Encapsulation of data and code within objects

Answer

Inheritance and code reusability

Answer

Enhanced code readability and maintainability

Question 29

Which of the following is NOT a characteristic of an effective algorithm?

Accepted Answer

Flexibility

Answer

Accuracy

Answer

Efficiency

Question 30

In object-oriented programming, which concept ensures that data is kept private and secure?

Accepted Answer

Encapsulation

Answer

Inheritance

Answer

Polymorphism

Answer

Abstraction

Question 31

Which of the following is NOT a built-in data type in Python?

Accepted Answer

Class

Answer

Integer

Answer

List

Answer

Dictionary

Question 32

What is the defining characteristic of an efficient algorithm?

Accepted Answer

Uses the least amount of resources (time and space) to solve a problem

Answer

Requires a lot of memory space

Answer

Takes a long time to run

Answer

Produces incorrect results

Question 33

What is a defining characteristic of an algorithm?

Accepted Answer

It has a finite number of steps.

Answer

It produces different outputs for the same input.

Answer

It must be written in a specific programming language.

Question 34

Which is NOT a feature of a well-designed algorithm?

Accepted Answer

Unclear and repetitive

Answer

Clear and simple

Answer

Efficient and optimal

Answer

Reusable and modular

Question 35

An algorithm finds the maximum value in an array using nested loops. What's the issue with this algorithm?

Accepted Answer

It's inefficient due to the nested loops.

Answer

It should use a sorting algorithm.

Answer

It's efficient because it uses loops.

Answer

It's efficient because it uses recursion.

Question 36

What term describes the process of systematically breaking down a problem into more manageable parts?

Accepted Answer

Decomposition

Answer

Abstraction

Answer

Recursion

Answer

Refactoring

Question 37

Which of the following is a type of data structure used to store data?

Accepted Answer

Array

Answer

Loop

Answer

Function

Answer

Variable

Question 38

What is the process of finding and fixing errors in a program known as?

Accepted Answer

Debugging

Answer

Compiling

Answer

Executing

Answer

Parsing

Question 39

Which of the following is NOT a commonly used loop structure in programming?

Accepted Answer

Switch-case statement

Answer

For loop

Answer

While loop

Answer

Do-while loop

Question 40

What is the process of representing data in a computer using binary digits (0s and 1s) known as?

Accepted Answer

Digitization

Answer

Quantization

Answer

Compression

Answer

Encryption

Question 41

Which of the following network topologies involves connecting all devices to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 42

Which technique is NOT commonly used to enhance the efficiency of an algorithm?

Accepted Answer

Increasing the number of variables

Answer

Minimizing the number of operations

Answer

Selecting the optimal data structure

Answer

Employing recursion

Question 43

How does abstraction contribute to the modularity and reusability of code?

Accepted Answer

Abstraction enables the creation of reusable code components by concealing implementation details.

Answer

Abstraction complicates code by adding extra layers.

Answer

Abstraction is only advantageous for large-scale software applications.

Answer

Abstraction is primarily used to enhance code execution efficiency.

Question 44

When using algorithms to make decisions, which of the following is most important to consider?

Accepted Answer

Ethical considerations should be a top priority when using algorithms to make decisions.

Answer

Algorithms are always fair because they follow rules.

Answer

Algorithms are better than humans at making decisions because they are not biased.

Answer

Algorithms should only be used for simple tasks because they cannot handle complex ethical issues.

Question 45

To store a collection of unique names in a program, which data structure is most suitable? Explain your choice.

Accepted Answer

Hash table

Answer

Array

Answer

Linked list

Answer

Queue

Question 46

Which characteristic is crucial for a well-structured algorithm?

Accepted Answer

Exceptional clarity

Answer

Maximum efficiency

Answer

Aesthetic appeal

Question 47

Which of the following is NOT a benefit of abstraction?

Accepted Answer

Provides unnecessary information

Answer

Simplifies complex systems

Answer

Hides implementation details

Answer

Increases code readability

Question 48

Decomposition involves:

Accepted Answer

Breaking down a problem into smaller, manageable parts

Answer

Designing the user interface of a program

Answer

Testing and debugging a program

Answer

Implementing a program using a specific programming language

Question 49

Which data structure is specifically designed to store a collection of related items in a specific order?

Accepted Answer

Array

Answer

Linked list

Answer

Stack

Answer

Queue

Question 50

The process of converting a high-level program into machine code is called:

Accepted Answer

Compilation

Answer

Interpretation

Answer

Execution

Answer

Debugging

Question 51

The primary function of a debugger is to:

Accepted Answer

Identify and rectify errors within a program

Answer

Enhance program performance

Answer

Create program documentation

Answer

Test a program's functionality

Question 52

Which of the following is not a fundamental principle of computational thinking?

Accepted Answer

Generalization

Answer

Abstraction

Answer

Decomposition

Answer

Algorithm creation

Question 53

What is the term for the process of breaking down a problem into smaller, more manageable components?

Accepted Answer

Decomposition

Answer

Abstraction

Answer

Algorithm implementation

Answer

Testing

Question 54

Which data structure is optimal for storing an ordered list of items?

Accepted Answer

Array

Answer

Linked list

Answer

Stack

Answer

Queue

Question 55

What is the primary purpose of an algorithm?

Accepted Answer

Provide a step-by-step method for solving a problem

Answer

Store data on a computer

Answer

Control the flow of a program

Answer

Perform mathematical calculations

Question 56

Within the UK educational system, which programming language is commonly employed to introduce computational thinking?

Accepted Answer

Python

Answer

Java

Answer

C++

Answer

JavaScript

Question 57

What term describes a set of instructions defining the sequential execution of tasks in a program?

Accepted Answer

Algorithm

Answer

Flowchart

Answer

Pseudocode

Answer

Syntax

Question 58

What is the key distinction between a stack and a queue data structure?

Accepted Answer

A stack adheres to Last In First Out (LIFO) while a queue adheres to First In First Out (FIFO)

Answer

A stack serves as temporary storage while a queue serves as permanent storage

Answer

A stack is more efficient than a queue

Answer

A queue is simpler to implement than a stack

Question 59

Which of the following is NOT a type of software testing?

Accepted Answer

Benchmarking

Answer

Unit testing

Answer

Integration testing

Answer

Regression testing

Question 60

AI systems learn from massive amounts of data. Which statement best reflects the ethical and privacy considerations in using this data?

Accepted Answer

Data ethics and privacy should be a top priority when developing and using AI systems.

Answer

AI should focus on being efficient and accurate, even if it means ignoring data ethics and privacy.

Answer

Data ethics and privacy should only be considered after AI systems are built.

Question 61

Which of these is a key principle of agile software development?

Accepted Answer

Ongoing collaboration with stakeholders

Answer

Thorough documentation at every stage

Answer

Limited testing to save time

Answer

Comprehensive planning for the entire software lifecycle

Question 62

Which two main approaches are used to execute programs? Explain the key difference in how they work.

Accepted Answer

Compilation and Interpretation

Answer

Recursion and Iteration

Answer

Assembly and Machine Language

Answer

Declarative and Imperative Programming

Question 63

Which of the following is NOT a crucial component of a computer network?

Accepted Answer

Printers

Answer

Computers

Answer

Routers

Answer

Protocols

Question 64

Which of the following is a fundamental principle of computer science?

Accepted Answer

Abstraction

Answer

Modularity

Answer

Encapsulation

Answer

Inheritance