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10+ Coding Instructor Interview Questions and Answers

Updated 29 Nov 2024

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Q1. what are loops? arrays, conditional statments

Ans.

Loops, arrays, and conditional statements are fundamental programming concepts.

  • Loops allow for repetitive execution of code based on a condition or a set number of iterations.

  • Arrays are collections of data that can be accessed and manipulated using an index.

  • Conditional statements allow for the execution of different code based on a specified condition.

  • Examples: for loop, while loop, do-while loop, if statement, switch statement, foreach loop.

Q2. What is OOPS programs you are comfortable with

Ans.

I am comfortable with OOPS programs such as Java, C++, and Python.

  • Proficient in Java OOPS concepts such as Inheritance, Polymorphism, and Encapsulation

  • Familiar with C++ OOPS concepts such as Abstraction, Constructors, and Destructors

  • Experienced in Python OOPS concepts such as Classes, Objects, and Inheritance

Q3. What is a life cycle hook in auto scaling

Ans.

A life cycle hook in auto scaling allows you to perform custom actions before an instance is launched or terminated.

  • Life cycle hooks can be used to pause the instance launch process to perform custom actions.

  • Common actions include validating the instance configuration or setting up additional resources.

  • Examples of life cycle hooks include 'Launch' and 'Terminate'.

Q4. Print pyramid pattern and reverse it using online compiler

Ans.

Print pyramid pattern and reverse it using online compiler

  • Use nested loops to print the pyramid pattern

  • Start with one '*' in the first row and increase by 2 in each subsequent row

  • To reverse the pyramid, start with the maximum number of '*' in the first row and decrease by 2 in each subsequent row

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Q5. Technical specifications of the device used.

Ans.

The device used is a laptop with 16GB RAM, Intel i7 processor, and 512GB SSD.

  • Laptop model: Dell XPS 15

  • RAM: 16GB

  • Processor: Intel i7

  • Storage: 512GB SSD

Q6. program to print prime numbers

Ans.

Program to print prime numbers

  • Start with a loop from 2 to n (number to check)

  • For each number, check if it is divisible by any number from 2 to its square root

  • If not divisible, it is a prime number and print it

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Q7. What is constructor in java

Ans.

Constructor is a special method used to initialize objects in Java.

  • Constructor has the same name as the class

  • It is called automatically when an object is created

  • It can be used to set default values for object attributes

  • Example: public class Car { public Car() { // constructor code } }

Q8. what you know about coding

Ans.

Coding involves writing instructions for computers to execute tasks, using programming languages like Python, Java, and C++.

  • Coding is the process of creating instructions for computers to follow.

  • Programming languages like Python, Java, and C++ are used for coding.

  • Coding is essential for developing software, websites, and apps.

  • Debugging and problem-solving are important skills in coding.

  • Coding allows for automation of tasks and creation of innovative solutions.

Q9. what is polymorphism

Ans.

Polymorphism is the ability of an object to take on many forms.

  • It allows objects of different classes to be treated as if they are of the same class.

  • It is achieved through method overriding and method overloading.

  • Example: A shape class can have different subclasses like circle, square, and triangle, but they can all be treated as shapes.

  • Example: The + operator can be used to add integers, floats, and strings, demonstrating polymorphism through operator overloading.

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Q10. code in the code.org platform

Ans.

Code in the code.org platform

  • Use block-based coding to create programs

  • Drag and drop blocks to sequence commands

  • Test and debug your code to ensure it runs correctly

Q11. What is inheritance

Ans.

Inheritance is a concept in object-oriented programming where a class inherits attributes and methods from another class.

  • Allows for code reusability by creating a new class based on an existing class

  • Child class can access and modify the attributes and methods of the parent class

  • Helps in creating a hierarchy of classes with shared characteristics

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