ZEE5 Software Developer Interview Questions and Answers

Q1. What is closure
Ans. 
A closure is a function that has access to its own scope, the scope in which it was defined, and the global scope.
• A closure is created when a function is defined inside another function.

• The inner function has access to the variables and parameters of the outer function, even after the outer function has finished executing.

• Closures are useful for creating private variables and functions in JavaScript.

• They can also be us...read more
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Q2. What is Encapsulation
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Encapsulation is the process of hiding internal details and providing a public interface for accessing and manipulating data.
• Encapsulation bundles data and methods together into a single unit.

• It helps in achieving data abstraction and data hiding.

• By encapsulating data, we can control access to it and prevent unauthorized modifications.

• Encapsulation promotes code reusability and maintainability.

• Example: A class in objec...read more
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Q3. What is Inheritance
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows for code reuse and promotes the concept of hierarchy.

• The class that is being inherited from is called the superclass or base class.

• The class that inherits from the superclass is called the subclass or derived class.

• The subclass can access the public and protected members of the s...read more
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Q4. What is Abstraction
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Abstraction is the process of simplifying complex systems by focusing on essential details.
• Abstraction involves hiding unnecessary details and exposing only relevant information.

• It allows developers to create models or representations that capture the essential aspects of a system.

• Abstraction helps in managing complexity, improving code reusability, and enhancing maintainability.

• For example, in object-oriented programm...read more
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Q5. What is Polymorphism
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Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.
• Polymorphism is a fundamental concept in object-oriented programming.

• It enables code reusability and flexibility.

• Polymorphism can be achieved through method overriding and method overloading.

• Example: A parent class Animal can have multiple child classes like Dog, Cat, and Bird. They can ...read more
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Q1. C#,Mvc core,SQL server,vue js,
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Q1. Salary discussion
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Q1. Regarding skills set
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Had technical round with coding

Q1. Had discussion on skills , i joined as a fresher
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Q1. Basic python qyestions
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Q2. Oops concepts in python
Ans. 
Oops concepts in Python include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit attributes and methods from another class.

• Encapsulation restricts access to certain components within a class.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides complex implementation details and only shows the necessary features.
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Q3. Sql queries in framework
Ans. 
SQL queries are commonly used in frameworks for data manipulation and retrieval.
• SQL queries are used to interact with databases within a framework.

• Frameworks like Hibernate, Entity Framework, and Django ORM use SQL queries to perform database operations.

• SQL queries can be written directly in code or generated by the framework based on object-relational mapping.

• Examples: SELECT * FROM table_name WHERE condition, INSERT ...read more
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Q4. Inheritance and polymorphism
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Q5. Design pattern in python
Ans. 
Design patterns in Python are reusable solutions to common problems in software design.
• Design patterns help in creating maintainable and scalable code.

• Some common design patterns in Python include Singleton, Factory, Observer, and Strategy.

• Each design pattern has its own purpose and implementation.

• Design patterns promote code reusability and flexibility.
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Q1. What is the use of ref?
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The 'ref' keyword in C# is used to pass arguments by reference instead of by value.
• Allows a method to modify the value of the argument passed to it

• Useful when you want to update the original value of a variable inside a method

• Can be used with value types and reference types

• Example: void UpdateValue(ref int num) { num = 10; }

• Example: int value = 5; UpdateValue(ref value); // value will be 10 after the method call
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Q2. What are React Hooks
Ans. 
React Hooks are functions that let you use state and other React features without writing a class.
• React Hooks were introduced in React 16.8.

• They allow you to use state and other React features in functional components.

• Some commonly used React Hooks are useState, useEffect, useContext, etc.

• Hooks are more lightweight and easier to understand compared to class components.
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Q1. Sdlc process, MVC architecture, entity framework, SQL queries
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Q2. SQL queries, state vs stateless, url
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Apt + coding questions, medium difficulty

Q1. Basics qs on oops and known programming language
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Q1. In-depth of oops and live coding questions
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Q1. Basics qs like y and what
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