Dibs Technologies DOT NET Developer Interview Questions and Answers

It was a Technical Test with around 25 questions out of which 18 questions needed to be correct. Questions were technical.

Q1. As I was appearing for senior position. They asked about project and work experience. Tell me about yourself ? What projects have you worked on?
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Q2. How to integrate third party web api in our project
Ans. 
Integrating third party web APIs involves obtaining API key, making HTTP requests, parsing responses, and handling errors.
• Obtain API key from third party provider

• Make HTTP requests to the API endpoints

• Parse the JSON/XML response data

• Handle errors and exceptions gracefully
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Q3. What is dependency injection? How to implement it? What is tightly coupled? What is loosely coupled?
Ans. 
Dependency injection is a design pattern where the dependencies of an object are provided externally rather than created within the object itself.
• Dependency injection helps in achieving loosely coupled code by allowing objects to be easily replaced or modified without changing the core logic.

• It involves injecting dependencies into a class through constructor injection, setter injection, or interface injection.

• Tightly c...read more
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Q4. Static void main{ int i =10; Console.WriteLine(i++); }
Ans. 
The code prints the value of 'i' before incrementing it, resulting in output of 10.
• The '++' operator is a post-increment operator, meaning it returns the value before incrementing.

• In this case, 'Console.WriteLine(i++)' outputs '10' and then 'i' becomes '11'.

• If '++i' were used instead, it would output '11' because it increments before returning the value.
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Q5. Static void main{ int val =5; show(val); Console.WriteLine("Value of val is "+val); } Internal class show(int i) { i*=i; Console.WriteLine("Value of i is"+i); }
Ans. 
The code snippet demonstrates a simple program in C# that declares a variable, calls a method to square its value, and then prints the updated value.
• The 'show' method takes an integer parameter and squares its value before printing it.

• The 'val' variable is passed to the 'show' method, which updates its value to 25.

• The final output will display the updated value of 'val' as 25.
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Q6. Class A { } ClassB:A { } Static void Main() { A obj1 = new A(); A obj2 = new B(); B obj3 = new B(); B obj4 = new A();
Ans. 
The code snippet demonstrates object instantiation and inheritance in C#.
• Class B inherits from Class A.

• Objects of Class A and Class B can be instantiated.

• An object of a derived class can be assigned to a base class reference variable.
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