Programming Concepts: Master the Basics of Coding

Question 1

Which programming technique is used to verify that data stored in a variable matches the intended data type?

Accepted Answer

Data type checking

Answer

Automatic type conversion

Answer

Data type casting

Question 2

Which data type is used to store true or false values in programming languages?

Accepted Answer

Boolean

Answer

Integer

Answer

String

Answer

Float

Question 3

Which of the following is NOT a fundamental data type in most programming languages?

Accepted Answer

List

Answer

Integer

Answer

Boolean

Question 4

According to Java naming conventions, which of the following is an invalid variable name?

Accepted Answer

123

Accepted Answer

my-variable

Answer

myVariable

Answer

_myVariable

Question 5

Which Python data type can hold both numbers and letters?

Accepted Answer

String

Answer

Integer

Answer

Float

Answer

Boolean

Question 6

Which of the following is not a basic data type in Python?

Accepted Answer

Array

Answer

Integer

Answer

String

Answer

Boolean

Question 7

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

Accepted Answer

Array

Answer

Integer

Answer

String

Answer

Boolean

Question 8

In Python, which of these is not a control structure?

Accepted Answer

Function

Answer

If statement

Answer

For loop

Answer

While loop

Question 9

In Python programming, which of the following is NOT a primitive data type?

Accepted Answer

Array

Answer

Integer

Answer

String

Answer

Boolean

Question 10

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

Accepted Answer

Object

Answer

Integer

Answer

String

Answer

Boolean

Question 11

Which of the following is **not** a primitive data type in Java?

Accepted Answer

String

Answer

int

Answer

boolean

Answer

char

Question 12

In Python, which of these is NOT a fundamental data type?

Accepted Answer

List

Answer

Integer

Answer

Float

Question 13

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

Accepted Answer

Array

Answer

Integer

Answer

Boolean

Answer

String

Question 14

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

Accepted Answer

Array

Answer

Integer

Answer

String

Answer

Boolean

Question 15

In programming, what's the main reason for using functions?

Accepted Answer

To organize and group related code

Answer

To store and manage data

Answer

To create multiple copies of a data structure

Question 16

What is the main purpose of a control structure?

Accepted Answer

To control the flow of execution

Answer

To store data

Answer

To define functions

Answer

To handle exceptions

Question 17

Which of the following is the correct syntax for defining a function in Python?

Accepted Answer

def my_function():

Answer

function my_function():

Answer

my_function = ()

Answer

public static void my_function()

Question 18

What is the key difference between a variable and a constant?

Accepted Answer

Variables can be changed, while constants cannot

Answer

Constants can be changed, while variables cannot

Answer

They serve the same purpose

Answer

There is no difference between a variable and a constant

Question 19

What is the purpose of the 'break' statement?

Accepted Answer

To exit a loop

Answer

To exit a function

Answer

To exit a program

Answer

To continue a loop

Question 20

What is the relationship between a class and an object?

Accepted Answer

A class is a template, while an object is an instance of the class

Answer

An object is a template, while a class is an instance of the object

Answer

They serve the same purpose

Answer

There is no difference between a class and an object

Question 21

What is the role of the 'finally' block?

Accepted Answer

To execute code regardless of whether an exception occurs

Answer

To handle exceptions

Answer

To define constants

Answer

To exit a function

Question 22

Which data type is NOT primitive in Python?

Accepted Answer

List

Answer

Integer

Answer

Float

Answer

Boolean

Question 23

What is the primary purpose of a for loop in programming?

Accepted Answer

To execute a set of instructions repeatedly

Answer

To evaluate the truthiness of a condition

Answer

To assign a value to a variable

Answer

To display output on the screen

Question 24

What is the key difference between a function and a method in Python?

Accepted Answer

Functions operate on global variables, while methods operate on instance variables

Answer

Methods operate on global variables, while functions operate on instance variables

Answer

There is no fundamental difference between functions and methods

Answer

Functions can return multiple values, while methods can only return a single value

Question 25

What is the primary purpose of the instanceof operator in Java?

Accepted Answer

To determine if an object belongs to a specific class

Answer

To compare the values of two objects

Answer

To convert an object to a different type

Answer

To create a new instance of a class

Question 26

Which of the following is the correct way to create a new object in Python?

Accepted Answer

object = Object()

Answer

object = new Object();

Answer

object = Object.new();

Answer

object = Object

Question 27

Which of the following is NOT a valid access modifier in Java?

Accepted Answer

internal

Answer

public

Answer

private

Answer

protected

Question 28

What is the primary benefit of inheritance in object-oriented programming?

Accepted Answer

It enables the creation of new classes with similar characteristics and behaviours

Answer

It enables the creation of new classes with different characteristics and behaviours

Answer

It enables the creation of new objects with similar characteristics and behaviours

Answer

It enables the creation of new objects with different characteristics and behaviours

Question 29

In programming, what is the primary purpose of a variable?

Accepted Answer

To store data

Answer

To define a program

Answer

To control the flow of execution

Answer

To create objects

Question 30

Which control structure is used in programming to execute a block of code repeatedly a specified number of times?

Accepted Answer

For loop

Answer

If statement

Answer

While loop

Answer

Switch statement

Question 31

In programming, what is the key difference between a function and a procedure?

Accepted Answer

A function always returns a value, unlike a procedure

Answer

A function is defined using the keyword 'def', while a procedure uses 'proc'

Answer

There is no distinction between a function and a procedure

Answer

A function can invoke other functions, but a procedure cannot

Question 32

'import' statement in Python serves which purpose?

Accepted Answer

To incorporate a library or module into the program

Answer

To define a new function in the program

Answer

To create a new class in the program

Answer

To import data from a file

Question 33

In Java, which of the following is a valid identifier?

Accepted Answer

_name

Answer

1name

Answer

name#

Answer

name*

Question 34

What will be the output of this Python code?
a = 10
if a > 5:
  print('Greater than 5')

Accepted Answer

Greater than 5

Answer

None

Answer

Error

Answer

10

Question 35

In Java, which example represents a valid class?

Accepted Answer

public class MyClass {}

Answer

public void MyClass {}

Answer

public MyClass[] {}

Answer

public MyClass.MyMethod {}

Question 36

In Python, which of the following is a valid variable name?

Accepted Answer

_my_variable

Answer

1st_number

Answer

$dollars

Answer

#num

Question 37

What is the primary purpose of using control structures in programming?

Accepted Answer

To control the flow of execution based on certain conditions.

Answer

To store data in memory.

Answer

To declare functions.

Answer

To accept input from the user.

Question 38

Explain the distinction between functions and procedures in programming.

Accepted Answer

Functions return a value, while procedures do not.

Answer

Procedures return a value, while functions do not.

Answer

Functions can be invoked multiple times, unlike procedures.

Answer

Functions and procedures are interchangeable concepts in programming.

Question 39

Describe the purpose of a switch statement in programming.

Accepted Answer

To execute distinct code blocks based on a specified value.

Answer

To iterate over a sequence of values.

Answer

To define a function.

Answer

To obtain user input.

Question 40

Identify the option that does NOT represent an advantage of employing functions in programming.

Accepted Answer

Increased code complexity

Answer

Enhanced code reusability

Answer

Improved program readability

Answer

Reduced likelihood of errors

Question 41

In Python, which variable assignment statement is correct?

Accepted Answer

age = 18;

Answer

int age = 18;

Answer

var age = 18;

Question 42

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

Accepted Answer

Array

Answer

Integer

Answer

String

Answer

Boolean

Question 43

What primary purpose do variables serve in programming?

Accepted Answer

Storing data temporarily

Answer

Defining functions

Answer

Controlling program flow

Answer

Displaying output

Question 44

Which of the following control structures enables execution of multiple statements based on a specific condition?

Accepted Answer

If-else statement

Answer

Switch-case statement

Answer

For loop

Answer

While loop

Question 45

Which of the following is NOT a key benefit of using version control?

Accepted Answer

Automated code generation

Answer

Collaboration enhancement

Answer

Tracking of changes

Answer

Enhanced security

Question 46

What is the primary distinction between a method and a function?

Accepted Answer

Methods apply to specific objects, while functions are general.

Answer

Functions apply to specific objects, while methods are general.

Answer

Methods and functions are interchangeable concepts.

Answer

Methods are defined within classes, unlike functions.

Question 47

What is the primary purpose of encapsulation in object-oriented programming?

Accepted Answer

To conceal the implementation details and internal data of an object, making it accessible only through its public interface.

Answer

To make the data and methods of an object publicly accessible, allowing for unrestricted modification.

Answer

To improve the readability and maintainability of the code by separating the implementation details from the object's interface.

Answer

To enforce data security, ensuring that only authorized parts of the program can access and modify the object's data.

Question 48

What is the primary purpose of using variables in programming?

Accepted Answer

To store and manipulate data throughout the program's execution.

Answer

To perform complex mathematical calculations and operations.

Answer

To control the flow of the program and determine which code blocks are executed.

Answer

To provide a means of user interaction and input validation.

Question 49

Which control structure is used to execute a block of code repeatedly while a specific condition remains true?

Accepted Answer

While loop

Answer

If-else statement

Answer

For loop

Answer

Switch statement

Question 50

Which of the following best describes a programming paradigm?

Accepted Answer

A set of principles and practices that guide the design and implementation of software

Answer

A specific programming language used to develop software applications

Answer

A collection of pre-defined code libraries and modules

Answer

A methodology for testing and debugging software

Question 51

In software development, what is the fundamental goal of unit testing?

Accepted Answer

Evaluating individual code units independently

Answer

Assessing how various code units work together

Answer

Determining the overall speed of the software system

Answer

Testing the effectiveness of the software's user interface

Question 52

Which syntax is used to correctly define a function in Python?

Accepted Answer

def functionName(parameters):

Answer

function functionName(parameters):

Answer

def functionName:

Answer

functionName(parameters):

Question 53

In Python, which of these is NOT a primitive data type?

Accepted Answer

List

Answer

Integer

Answer

Boolean

Answer

String

Question 54

Which of the following is not a valid data type in Python?

Accepted Answer

Character

Answer

Integer

Answer

Boolean

Answer

String

Question 55

Identify the key characteristics that distinguish control structures in programming:

Accepted Answer

a. Conditional execution and iterative behavior

Answer

b. Input/output operations

Answer

c. Strictly sequential execution

Answer

d. Purely organizational without impact on execution

Question 56

In Python, what's the key difference between integers and floats?

Accepted Answer

Integers are whole numbers, while floats have decimal points.

Answer

Integers are variables, while floats are constants.

Answer

Integers are for user input, while floats are for calculations.

Answer

Integers are primitive data types, while floats are non-primitive.

Question 57

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

Accepted Answer

List

Answer

Integer

Answer

String

Answer

Boolean

Question 58

In programming, what best describes a variable?

Accepted Answer

A named memory location storing values of a specific data type.

Answer

A reserved word only used for declaring functions.

Answer

A special symbol representing a logical operation.

Answer

A constant value that remains unchanged throughout a program's execution.

Question 59

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

Accepted Answer

Array

Answer

Integer

Answer

Float

Answer

Boolean

Question 60

What is a recursive function? Explain how it works and provide an example to illustrate your explanation.

Accepted Answer

A recursive function is one that calls itself repeatedly until a certain condition is met. It must have a base case to prevent infinite recursion.

Answer

A recursive function is one that always returns the same value, regardless of the input.

Answer

A recursive function is one that cannot be called more than once in a program.

Answer

A recursive function is one that runs indefinitely without ever terminating.

Question 61

What is the primary function of a variable in a programming language?

Accepted Answer

Storing values in memory

Answer

Establishing fixed values

Answer

Creating instances of objects

Answer

Invoking functions

Question 62

Which control structure is designed to execute a block of code repeatedly until a specified condition becomes false?

Accepted Answer

While loop

Answer

If statement

Answer

For loop

Question 63

In programming, what is the best description of a variable?

Accepted Answer

A named memory space that holds a value that can change during the program

Answer

A group of related data stored in a fixed-size block

Answer

A permanent value that cannot be changed during the program

Answer

A set of instructions that define how the program runs

Question 64

Which of the following is not a fundamental data type in Python?

Accepted Answer

Object

Answer

Integer

Answer

String

Answer

Boolean