Knoldus Inc Software Developer Interview Questions and Answers

25 MCQ questions online with time limit

Create webapp . Frontend, Backend , data encryption

Easy to medium
profit and loss questions
Permutation and combination

Easy to medium
45 mins

Q1. Basic concept of Oops Java basic
Add your answer
Q2. Constructor Overloading
Add your answer
Q3. Operator overloading in Java?
Ans. 
Operator overloading allows operators to be redefined for user-defined types in Java.
• Operator overloading is not supported in Java as it can lead to ambiguity and confusion.

• Java does not allow custom operators to be defined or existing operators to be overloaded.

• Instead of operator overloading, Java provides method overloading where methods with the same name but different parameters can be defined.
Answered by AI
Add your answer
Q4. Define java and it's features
Ans. 
Java is a high-level, object-oriented programming language known for its platform independence and robust features.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• It is object-oriented, allowing for modular and reusable code

• Java is known for its robust standard library, which includes tools for networking, I/O, and more

• It supports multithreading, allowing for concurrent e...read more
Answered by AI
Add your answer

Q1. Introduction Present events
Add your answer

Easy aptitude, 30 min with 20 question

Simple aptitude questions.

Q1. What's your strength ?
Ans. 
My strength lies in my problem-solving skills and ability to learn quickly.
• Strong problem-solving skills

• Quick learner

• Adaptability to new technologies

• Ability to work well under pressure
Answered by AI
Add your answer
Q2. Are you willing to work under pressure?
Ans. 
Yes, I am comfortable working under pressure and have experience delivering high-quality work in tight deadlines.
• I have successfully completed projects with tight deadlines in my previous roles.

• I am able to prioritize tasks effectively and remain focused under pressure.

• I thrive in challenging situations and see them as opportunities to showcase my skills.

• I have experience working on urgent bug fixes and resolving issue
Answered by AI
Add your answer

Q1. Explain process for SDE
Ans. 
The process for Software Development Engineer involves planning, designing, coding, testing, and deploying software solutions.
• Gather requirements from stakeholders

• Create a design based on requirements

• Write code to implement the design

• Test the software for bugs and issues

• Deploy the software for users to use

• Iterate on feedback and make improvements
Answered by AI
Add your answer

Q1. How do you handle debugging in your code?
Ans. 
I use print statements, logging, and debugging tools to identify and fix issues in my code.
• I start by reviewing the code and understanding the logic behind it.

• I use print statements to check the values of variables at different points in the code.

• I utilize logging to track the flow of the program and identify any errors.

• I use debugging tools like breakpoints and step-through debugging to pinpoint the exact location of ...read more
Answered by AI
Add your answer
Q2. What is your approach to optimizing a slow-running application?
Ans. 
Identify bottlenecks, analyze code, optimize algorithms, utilize caching, and consider hardware upgrades.
• Identify bottlenecks in the application by profiling and monitoring performance.

• Analyze the code to find inefficient algorithms or database queries.

• Optimize algorithms and data structures to improve efficiency.

• Utilize caching mechanisms to reduce redundant computations.

• Consider hardware upgrades such as increasing m
Answered by AI
Add your answer
Q3. What is the difference between functional and object-oriented programming?
Ans. 
Functional programming focuses on functions and immutability, while object-oriented programming focuses on objects and encapsulation.
• Functional programming uses pure functions that do not have side effects.

• Object-oriented programming uses objects that encapsulate data and behavior.

• In functional programming, data is immutable and functions are first-class citizens.

• In object-oriented programming, objects can have state a...read more
Answered by AI
Add your answer

Q1. Write a function to find the first non-repeating character in a string ?
Ans. 
Function to find the first non-repeating character in a string
• Create a hashmap to store character frequencies

• Iterate through the string to populate the hashmap

• Iterate through the string again to find the first non-repeating character
Answered by AI
Add your answer
Q2. Explain the difference between a stack and a queue . Provide an example of when you would use each?
Ans. 
A stack is a data structure that follows the Last In First Out (LIFO) principle, while a queue follows the First In First Out (FIFO) principle.
• Stack: Last In First Out (LIFO), used for function calls, undo operations.

• Queue: First In First Out (FIFO), used for printing tasks, message queues.
Answered by AI
Add your answer