Coding logic and algorithms quiz

Question 1

What is an algorithm?

Accepted Answer

A step-by-step set of instructions to solve a problem

Answer

A type of computer screen

Answer

A programming language only used by robots

Answer

A random guess made by a computer

Question 2

In programming, what does a 'loop' do?

Accepted Answer

Repeats a block of code multiple times

Answer

Deletes all the code

Answer

Connects to the internet

Answer

Stores a password

Question 3

What is a 'variable' in coding?

Accepted Answer

A named container that stores a value

Answer

A mistake in the code

Answer

A type of loop

Answer

A picture on the screen

Question 4

In machine learning, what is 'training data'?

Accepted Answer

Examples the model learns patterns from

Answer

The final answer the model gives

Answer

A bug in the program

Answer

The speed of the computer

Question 5

What does an 'if' statement let a program do?

Accepted Answer

Make a decision based on a condition

Answer

Repeat code forever

Answer

Store many numbers

Answer

Draw a graph

Question 6

What is a 'bug' in a program?

Accepted Answer

An error that makes the program behave wrongly

Answer

A helpful feature

Answer

A type of computer mouse

Answer

A fast algorithm

Question 7

Why do we use 'pseudocode' before writing real code?

Accepted Answer

To plan the logic in plain language first

Answer

To make the code run faster

Answer

Because computers read pseudocode directly

Answer

To hide the program from others

Question 8

In a list of numbers, how does a 'linear search' find a value?

Accepted Answer

Checks each item one by one until found

Answer

Jumps straight to the middle every time

Answer

Sorts the list first always

Answer

Picks a random item

Question 9

What is the main advantage of 'binary search' over linear search?

Accepted Answer

It is faster by halving the search area each step

Answer

It works on unsorted lists

Answer

It uses no memory at all

Answer

It never makes mistakes on any list

Question 10

What is a 'function' in programming?

Accepted Answer

A reusable block of code that does a task

Answer

A type of error

Answer

A single number

Answer

A way to turn off the computer

Question 11

In AI, what does it mean for a model to 'make a prediction'?

Accepted Answer

Uses learned patterns to give an answer about new input

Answer

Memorizes the user's password

Answer

Deletes the training data

Answer

Slows down on purpose

Question 12

What is a value that is either True or False called in coding?

Accepted Answer

A Boolean

Answer

A string

Answer

A loop

Answer

A list

Question 13

Why is the ORDER of steps important in an algorithm?

Accepted Answer

Steps depend on earlier ones, so order affects the result

Answer

Order never matters in code

Answer

Only the last step matters

Answer

Computers shuffle steps randomly

Question 14

What does the AND logical operator require to be True?

Accepted Answer

Both conditions must be True

Answer

At least one condition is True

Answer

Both conditions are False

Answer

It is always True

Question 15

What does the OR logical operator require to be True?

Accepted Answer

At least one condition is True

Answer

Both conditions must be True

Answer

Both conditions must be False

Answer

It is never True

Question 16

In a dataset, what is a 'feature'?

Accepted Answer

A measurable property of the data used for learning

Answer

A bug in the dataset

Answer

The final prediction

Answer

The computer's memory

Question 17

What is the difference between a 'for' loop and a 'while' loop?

Accepted Answer

for repeats a known number of times; while repeats until a condition is false

Answer

They are exactly the same

Answer

for only works with text

Answer

while can only run once

Question 18

What can cause an 'infinite loop'?

Accepted Answer

The stopping condition never becomes False

Answer

The code has a comment

Answer

The list is empty

Answer

A variable is named wrong only

Question 19

Why should training data for an AI model be fair and varied?

Accepted Answer

Varied data reduces bias and unfair predictions

Answer

It makes the file smaller

Answer

Computers prefer one type of data

Answer

Fairness has no effect on results

Question 20

What is a 'list' (or array) used for in programming?

Accepted Answer

To store many values together in order

Answer

To store only one value

Answer

To make the screen brighter

Answer

To delete files

Question 21

In Python, what does the index 0 refer to in a list?

Accepted Answer

The first item in the list

Answer

The last item in the list

Answer

The number of items

Answer

An empty space

Question 22

What is 'decomposition' in computational thinking?

Accepted Answer

Breaking a big problem into smaller parts

Answer

Deleting parts of a problem

Answer

Making a problem bigger

Answer

Ignoring the problem

Question 23

What is 'pattern recognition' in computational thinking?

Accepted Answer

Finding similarities or repeating features

Answer

Deleting repeated data

Answer

Writing longer code

Answer

Turning off patterns

Question 24

What does 'abstraction' mean in computer science?

Accepted Answer

Focusing on key details and hiding the rest

Answer

Adding every tiny detail

Answer

Removing all the code

Answer

Copying someone's work

Question 25

How does a simple sorting algorithm like bubble sort work?

Accepted Answer

Compares neighbors and swaps them until sorted

Answer

Picks numbers at random

Answer

Deletes the largest number

Answer

Only works on three items

Question 26

In machine learning, what is a 'label' in supervised learning?

Accepted Answer

The correct answer attached to a training example

Answer

A random number

Answer

The name of the programmer

Answer

A type of loop

Question 27

What is a 'comment' in code and why is it useful?

Accepted Answer

A note for humans that the computer ignores

Answer

An instruction the computer runs

Answer

A type of error

Answer

A way to speed up code

Question 28

What is the result of the expression 7 % 3 (the modulo operator) in Python?

Accepted Answer

1

Answer

2

Answer

3

Answer

0

Question 29

Why is it important to test a program with different inputs?

Accepted Answer

To find bugs and ensure it works in many situations

Answer

To make the code longer

Answer

Because computers require it

Answer

To slow the program down

Question 30

What does it mean if one algorithm is more 'efficient' than another?

Accepted Answer

It solves the problem using fewer steps or resources

Answer

It uses more colors

Answer

It has more comments

Answer

It is written in capital letters

Test yourself