Engro Technologies Associate Software Engineer Interview Questions and Answers

Q1. Write a Prime number function using C
Ans. 
A function in C to check if a number is prime or not
• Create a function that takes an integer as input

• Check if the input number is divisible by any number from 2 to its square root

• If it is not divisible by any number, return true (prime), else return false (not prime)
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Q2. Write some basic codes for Manipulation in array
Ans. 
Basic codes for array manipulation including sorting, searching, and filtering.
• Use built-in functions like sort() for sorting arrays.

• Implement algorithms like binary search for searching in arrays.

• Utilize filter() method for filtering arrays based on specific criteria.
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Its was fully coding test using METTL platform in that there is only 1 session we need to attend having 6 questions all are Coding only. We don't need to complete all we can complete any of the question the time given was 1hr 30min in this i try to complete atleast 3 questions

Q1. In Technical interview they ask about Any programming language u prefer they will ask on that but most of java and paython is mandatory and more questions on java itself and about your project and all
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Q1. In HR round self introduction and about project discussion and they ask what they want to know about u and u r way of thinking about job
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Mostly questions on logical aptitude

Q1. DSA questions. Reverse word of string, bubble sort, swap two variables without use of third variable
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Q2. OOPs concepts also some questions on project
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Q3. 1 puzzle (refer gfg)
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Q1. Why do you want to work at our company?
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Q2. What was the toughest challenge you have ever faced?
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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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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
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java and Python programming languages

• Skilled in web development technologies like HTML, CSS, and JavaScript

• Worked on projects involving database management with SQL
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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. Find in rotated sorted array
Ans. 
Search for a target value in a rotated sorted array.
• Use binary search to find the pivot point where the array is rotated.

• Determine which half of the array the target value lies in based on the pivot point.

• Continue binary search in the appropriate half of the array to find the target value.
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Q2. Design IMDB. how will you manage concurrent ratings
Ans. 
Design IMDB with concurrent ratings management
• Implement a locking mechanism to ensure only one user can update a rating at a time

• Use a queue system to handle multiple rating requests in an orderly manner

• Consider using distributed systems to handle high concurrency levels
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Q1. Design vehicle rental system. Api design
Ans. 
Design a vehicle rental system API
• Create endpoints for listing available vehicles, booking a vehicle, and returning a vehicle

• Include authentication and authorization mechanisms for users and admins

• Implement payment gateway integration for processing rental payments

• Include features like vehicle search, filtering, and reviews/ratings

• Consider scalability and performance optimizations for handling high traffic
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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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