Nous Infosystems Software Engineer Interview Questions and Answers

Q1. What is Threading
Ans. 
Threading is a programming technique that allows multiple tasks to run concurrently within a single process.
• Threading allows for parallel execution of tasks within a program.

• Threads share the same memory space, allowing for efficient communication between tasks.

• Examples of threading include creating separate threads for handling user input and updating the UI in a GUI application.
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Q2. Define Opps concept
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OOPs concept stands for Object-Oriented Programming concepts which include principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

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

• Abstraction: Hiding the compl...read more
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Q3. Solid Pronciples
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Q4. Design Patterns
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Q1. ,What is your expected salary
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There were basics questions on quant.

Q1. Reverse a array
Ans. 
Reverse an array of strings
• Create a new array and iterate through the original array in reverse order, adding each element to the new array

• Use built-in array methods like reverse() or spread operator for a more concise solution

• Alternatively, you can swap elements from start to end and end to start until you reach the middle of the array
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Q2. Sorting algorithm
Ans. 
Sorting algorithm is a method to arrange elements in a specific order.
• Sorting algorithms can be categorized as comparison-based or non-comparison-based.

• Examples of sorting algorithms include Bubble Sort, Merge Sort, and Quick Sort.

• Efficiency of sorting algorithms is measured in terms of time complexity and space complexity.
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Q1. Exception handling
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Q2. Pattern problem (dimond)
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Q1. Python questions
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About java and c++. There is a discussion of advantagea and features of java and c++

In second round there was aptitude, verbal and coding questions

Q1. Basics question in java.
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Q2. Collections, sql
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Q3. Questions from resume
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Q4. Medium programming questions on arrays
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Q5. Strings also important
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On java and python based on loops and data structures

Q1. DELETE DUPLICATES IN A QUERY AND FIND THIRD HIGHEST SALARY
Ans. 
Delete duplicates in a query and find third highest salary.
• Use the DISTINCT keyword in the query to eliminate duplicates.

• Order the salaries in descending order and use the LIMIT clause to get the third highest salary.
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Q1. Simple Java and SQL Trick Questions
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Q1. Senior Manager Round, project experience details
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