Trawex Technologies Application Developer Interview Questions and Answers

Online MCQs - 15 Questions (Aps, DSA, Output Prediction)

1 Question (with 3 Enhancement)

Q1. Delete Middle Element from a stack of Odd Length
Ans. 
Remove middle element from a stack with odd length
• Find the middle index of the stack by dividing the length by 2

• Remove the element at the middle index

• Adjust the stack by shifting elements if necessary
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Q2. Resume Based Questions
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Q1. Self Introduction but without the details in the resume
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Q2. Asked whether ok with the bond
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Data structure and aptitude

10 mins given for prepare for the problem and after completing the problem (program ) they asked to explain and asked to upgrade the program by reduce time complexity

Q1. Topic given and want to explain
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Q2. Reverse string without buildin funtion and for loop
Ans. 
Reverse a string without using built-in functions or for loops
• Use recursion to reverse the string

• Pass the substring excluding the first character to the recursive function

• Base case: return the character itself if the length of the string is 1

• Concatenate the last character of the string with the result of the recursive call
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Q1. Introduce your self
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Q2. Are you ok with agreement
Ans. 
Yes, I am okay with agreement.
• I am comfortable with signing agreements related to software development projects.

• I understand the importance of agreements in protecting both parties involved in a project.

• I am willing to review and negotiate agreements to ensure they are fair and reasonable.
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Q1. 1st round is of Tech MCQ in all domains, its a bit moderate
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Q2. A Hard Leetcode Problem you can solve with reference
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Q3. Tech Hr with mainly your resume and DSA
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Q4. General HR and Culture fit round
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Technical mcq from basic of dsa

Question from DSA and time will given to solve it

Easy to medium level questions were asked

Questions were given asked to explain the concept

Q1. Basics of c++,java,oops
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Q1. Promises in javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
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Q1. Resume based questions
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Q2. Event loop in nodejs
Ans. 
Event loop in Node.js manages asynchronous operations by executing callback functions when certain events occur.
• Event loop is responsible for handling I/O operations, timers, and callbacks in Node.js

• It allows Node.js to perform non-blocking operations efficiently

• Event loop continuously checks the event queue for new events to execute
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Q3. Javascript es6 questions
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Divisibility, LCM, HCF.
Numbers, Decimals, Fractions, Powers.
Profit, Loss.
Simple interest and Compound interest.
Speed, Distance, Time.
Work and wages.
Trains, Boats, Streams-upstream/downstream, Circular track questions.
Cistern and pipes.

Coding interviews test candidates' technical knowledge, coding ability, problem solving skills, and creativity, typically on a whiteboard.

Choose a topic based on the assignment.
2 Conduct research.
3 Write a thesis statement