Green Rider Technology Promoter Interview Questions and Answers

Basic python programming and some question related to prompt

Q1. What is constructors
Ans. 
Constructors are special methods in a class that are used to initialize objects.
• Constructors have the same name as the class they belong to.

• They are called automatically when an object is created.

• Constructors can have parameters to initialize object properties.

• Example: public class Car { public Car(String color) { this.color = color; } }
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Q2. What is typecating
Ans. 
Typecasting is the process of converting a variable from one data type to another.
• Typecasting can be done implicitly or explicitly in programming languages.

• For example, converting an integer to a float or a string to an integer.

• Typecasting can help in avoiding errors and ensuring proper data manipulation.
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Q3. What is cloud computing?
Ans. 
Cloud computing is the delivery of computing services over the internet, including storage, servers, databases, networking, software, and more.
• Cloud computing allows users to access and use resources on-demand without the need for physical infrastructure.

• Examples of cloud computing services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

• Cloud computing offers scalability, flexibility, cos...read more
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Q4. What is recursion?
Ans. 
Recursion is a programming technique where a function calls itself in order to solve a problem.
• Recursion involves breaking down a problem into smaller subproblems and solving them recursively.

• Each recursive call works on a smaller input until a base case is reached.

• Examples include factorial calculation, Fibonacci sequence generation, and tree traversal.
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Q5. What is call by reference and call by value
Ans. 
Call by reference passes the address of the variable, allowing the function to modify the original value. Call by value passes a copy of the variable's value.
• Call by reference allows a function to modify the original value of a variable passed to it.

• Call by value passes a copy of the variable's value to the function, so any changes made inside the function do not affect the original value.

• Example of call by reference: ...read more
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