Kellton Interview Questions, Process, and Tips

Q1. What is oops concept why is used
Ans. 
OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: The ability of different classes to be treated as instances of th...read more
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Q2. Why inheritance used in projects
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Inheritance is used in projects to promote code reusability, reduce redundancy, and improve maintainability.
• Inheritance allows for the creation of a hierarchy of classes where common attributes and methods can be defined in a base class and inherited by subclasses.

• It helps in promoting code reusability by allowing subclasses to inherit properties and methods from a base class, reducing redundancy in code.

• Inheritance al...read more
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Q1. Basic javascript questions like closures and hoisting
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Q2. What is difference between react and angular
Ans. 
React is a JavaScript library for building user interfaces, while Angular is a full-fledged framework for building web applications.
• React is a library, while Angular is a framework

• React uses a virtual DOM, while Angular uses a real DOM

• React is more lightweight and flexible, while Angular has more built-in features and tools

• React is easier to learn for beginners, while Angular has a steeper learning curve

• React is mainta...read more
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Q1. Ask technical questions
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Q1. 2 hours taking technical interview
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Q2. Testing process, bug life cycle, approaches
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Q1. Offer letter regarding discussion
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Q1. Normal HR discussions
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Q1. Technicals questions asked related to swift programming and iOS
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Q2. What is mvvm how to use in project
Ans. 
MVVM is a software architectural pattern that separates the user interface from the business logic and data.
• MVVM stands for Model-View-ViewModel

• Model represents the data and business logic

• View represents the user interface

• ViewModel acts as a mediator between the Model and View

• ViewModel exposes data and commands to the View

• MVVM promotes separation of concerns and testability

• Example: Using MVVM in a mobile app, the ViewM...read more
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Q3. What is tuple, clousures, delegates, notifications
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Tuple is an ordered collection of elements. Closures are self-contained blocks of code. Delegates are references to functions. Notifications are a way to send messages between objects.
• Tuple: Used to group multiple values together. Example: (1, 'apple', True)

• Closures: Encapsulate code and capture variables. Example: { (x: Int) -> Int in return x * 2 }

• Delegates: Allow one object to communicate with another. Example: UITa...read more
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Asked to hit a xml api and show data to table view