Paltech Dot Net Fullstack Developer Interview Questions and Answers

Q1. Demonstrate Function Overriding.
Ans. 
Function Overriding is a concept in object-oriented programming where a subclass provides a specific implementation of a method that is already provided by its parent class.
• In Function Overriding, a subclass can provide a specific implementation of a method that is already defined in its parent class.

• The method in the subclass must have the same name, return type, and parameters as the method in the parent class to ove...read more
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Q2. Linq query with order by
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Using LINQ query to order data in C#
• Use the OrderBy method to sort data in ascending order

• Use the OrderByDescending method to sort data in descending order

• You can also use ThenBy and ThenByDescending for secondary sorting
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Q3. What is Out Parameter with example
Ans. 
Out parameter is used to pass data out of a method or function.
• Out parameters are used when a method needs to return multiple values.

• They are declared using the 'out' keyword in C#.

• Example: void CalculateArea(int length, int width, out int area) { area = length * width; }
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Q4. Authentication and autherization, JWT Tocken
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Q5. Reflection in C#
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Reflection in C# allows for inspecting and manipulating metadata of types at runtime.
• Reflection is used to dynamically create instances of types, access properties, and invoke methods.

• Examples include using reflection to load assemblies at runtime, inspect attributes of types, and generate code dynamically.

• Reflection can be slow and should be used judiciously due to performance overhead.
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Q1. Questions from, Architecture, C#, LINQ, SQL, API, Routing, Authentications, Angular framework structure, data pass between parent and client, Lifecycle Hooks, .Net core vs .Net framework, Middleware, micr...read more
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Q1. Use of interface in real world
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Interfaces in real world help in achieving abstraction and decoupling, allowing for flexibility and scalability in software development.
• Interfaces allow for multiple implementations of a common set of methods, promoting code reusability.

• Interfaces help in achieving loose coupling between different components of a system, making it easier to maintain and extend.

• Interfaces enable polymorphism, where objects can be treate...read more
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Q2. Asked about certifications and related questions
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Q1. Why do you want to join this organisation
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Q2. What is your Expected CTC
Ans. 
My expected CTC is based on my experience, skills, and the market rate for Dot Net Fullstack Developers.
• Consider my years of experience in Dot Net development

• Factor in my expertise in fullstack development technologies like Angular and React

• Research the current market rate for Dot Net Fullstack Developers in the location of the job

• Provide a range rather than a specific number to allow for negotiation
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Q1. Oops, C#, MVC, SQL server
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Q1. Salary discussion
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Q1. Tell about Oops
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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: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstrac...read more
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Q2. What is OOps Concept?
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Object-Oriented Programming (OOP) 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.
• OOP focuses on creating objects that interact with each other to solve a problem.

• Key principles of OOP include encapsulation, inheritance, and polymorphism.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• ...read more
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Q1. Custom middleware
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Q2. Routing explained
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Q1. Print “hello world!!” As hello one line. World 2nd line !! 3rd line
Ans. 
Print 'hello world!!' in three separate lines.
• Use a programming language's print function to output 'hello' on the first line, 'world' on the second line, and '!!' on the third line.

• In JavaScript, you can achieve this using console.log() function with line breaks like console.log('hello\nworld\n!!');
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Dependency Injection, Palindrome, No of letters in a string, Deployment, SQL joins