Dover India Senior Customer Service Representative Interview Questions and Answers

Asked to write an essay to check your writing skills and grammar.

Q1. Boxing and unboxing in. C#
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Q2. .net framework and .net core
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Q3. Simple program to print star pattern in c#
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A simple program to print star pattern in C#
• Use nested loops to print the desired pattern

• Start with a small pattern and then expand it to more complex ones

• Experiment with different loop structures to create various patterns
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Q4. String and string builder Mutable and immutable Heap and stack memory which is used when
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Q5. Difference in stored procedure and functions ACiD properties, normalization
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Stored procedures and functions differ in their usage and capabilities. ACID properties ensure data integrity, normalization reduces redundancy.
• Stored procedures are precompiled SQL queries that can perform multiple operations, while functions are reusable code blocks that return a single value.

• Stored procedures can have input and output parameters, while functions can only return a single value.

• ACID properties (Atomic...read more
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Q6. What are solid principles explain with example and also tell where you used them in previous project
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Solid principles are a set of design principles for writing maintainable and scalable code.
• Single Responsibility Principle: A class should have only one reason to change. For example, a class that handles user authentication should not also be responsible for sending emails.

• Open/Closed Principle: Software entities should be open for extension but closed for modification. For example, using interfaces to allow for new i...read more
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Q7. OOP related questions What are 4 pillars of OOP? Difference between encapsulation and abstraction. Difference in overloading and overriding.
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Q8. Questions on Interitance Given 3 classes A is parent of B and B is parent of C How do we call methods of B and A from C Which method will be called incase of same method in A B and C And some more I don'...read more
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Q1. Questions on salary expectations
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Q2. And informal discussion about work and team
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Q1. Given some problem statemts and asked to write the pseudo code,
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Q2. What is Async and Await.
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Async and Await are keywords in JavaScript used to handle asynchronous operations in a synchronous manner.
• Async is used to define a function as asynchronous, allowing it to run in the background without blocking the main thread.

• Await is used to pause the execution of an async function until a Promise is settled, and then resumes the function with the resolved value.

• Async functions always return a Promise, which allows ...read more
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They asked basic programs, cloud computing, computer networking

Q1. Why do you want to join company? , how do you manage your expense of home in this salary amount?
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Q2. Introduce yourself, strength, weakness, hobbies
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Q1. Tell me about yourself
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Q2. Working SAP knowledge
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