Trawex Technologies Senior Software Developer Interview Questions and Answers

3 coding questions of moderate difficult

Q1. Coding questions asked in coding round
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It had 2 programming questions and 30 aptitude questions
it

Q1. Introduce yourself, educational background
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Q2. What languages are you familiar with
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Six coding questions to be solved within an hour. The coding questions were standard aptitude based and did not include any complex topics like Dynamic Programming or trees in my case.

Q1. I had to solve a problem. Given an expression involving operators and operands with parentheses, convert it to postfix expression. I used the stack data structure.
Ans. 
Convert infix expressions to postfix using the stack data structure for operator precedence and parentheses handling.
• Use a stack to hold operators and parentheses while scanning the expression.

• Output operands (numbers/variables) immediately to the postfix expression.

• Pop operators from the stack to the output when encountering a lower precedence operator.

• Handle parentheses: push '(' onto the stack and pop until '(' when...read more
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Q1. A puzzle question
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Online coding test having basic problems and some aptitude problem.

Q1. Interviewer will ask opps and 2 basic coding problem 2 aptitude problem if you mention any technology in resume then ask about technology and projects
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Q2. What is opps ?
Ans. 
OOPs stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
• OOPs focuses on creating objects that contain both data and methods to manipulate that data.

• Encapsulation, inheritance, polymorphism, and abstraction are key principles of OOPs.

• Examples of OOPs languages include Java, C++, and Python.
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Q3. What is singleton class ?
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Totally there were 15 questions

15 objective questions related to basic DSA, OOPS

Q1. Explain your one of the project , cross questions around project
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Q2. OS, DBMS & One medium complex coding question
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Q1. Introduce yourself & explain your fav. project.
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Q2. One coding question related to sorting & hashing, i have to share my screen and discuss all possible approaches & then write code for optimum approach.
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Nuts and bolts game, to output date in a certain format, one SQL query

Q1. Stacks and Queues
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Q2. Linked lists, arrays, and many more basic fundamental Dsa questions.
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Q1. More about your resume projects.
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Q2. Puzzles and reasoning is asked
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Q1. Introduce yourself
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