Vibhathi Labs full stack .net developer Interview Questions and Answers

Q1. Oops concepts, SQL queries, observable and subscribe in angular
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Basic to medium level

Q1. Basic of all stacks for full stack mentioned in resume
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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
Ans. 
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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General aptitude, computer science fundamentals multiple-choice questions, and data structures and algorithms multiple-choice questions were asked.

Q1. Given a string, write a function to reverse the string.
Ans. 
Function to reverse a given string
• Create an empty string to store the reversed string

• Iterate through the input string in reverse order and append each character to the new string

• Return the reversed string
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Q2. Given a sorted array of integers, write a function to perform a binary search to find the index of a target value. If the target value is not found, return -1.
Ans. 
Binary search function to find target value in sorted array
• Define function that takes sorted array and target value as input

• Initialize variables for start, end, and middle indices

• Use while loop to iterate until start is less than or equal to end
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Q1. About the company
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Q2. What are three significant achievements in your life?
Ans. 
Graduating with honors, winning a hackathon, volunteering in a developing country
• Graduated with honors from university with a degree in Computer Science

• Won first place in a hackathon competition by developing a unique and innovative software solution

• Volunteered in a developing country to help build schools and provide education to underprivileged children
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Q1. Find the second largest element from array
Ans. 
Find the second largest element from array of strings
• Sort the array in descending order

• Access the element at index 1 to get the second largest element
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Q2. Java basics and advanced programming
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Q3. Failsafe vs fail fast integrators
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Failsafe integrators prioritize system stability by handling errors gracefully, while fail fast integrators prioritize quick detection and resolution of errors.
• Failsafe integrators focus on ensuring the system continues to function even in the presence of errors.

• Fail fast integrators aim to quickly identify and address errors to prevent further issues.

• Failsafe integrators often use techniques like retries, circuit brea...read more
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Q1. Saga design patterns
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Q2. Micro services architecture
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Q1. Arrays reverse in js
Ans. 
Use the built-in reverse() method to reverse an array in JavaScript.
• Use the reverse() method on the array to reverse its elements in place.

• Example: let arr = ['apple', 'banana', 'cherry']; arr.reverse(); // ['cherry', 'banana', 'apple']
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Q2. String question various conditions
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Q1. React common questions
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Q2. Spring boot and microservices questions
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Q3. Sql questions like second highest salary
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Q4. Java streams interview questions like second highest
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