Enzigma Software Software Engineer Trainee Interview Questions and Answers

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. Questions related to NODEJS , PHP, Past projects, Resume
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Q2. Why Mongodb over Sql
Ans. 
MongoDB is preferred over SQL for its flexibility, scalability, and ease of use in handling unstructured data.
• MongoDB is a NoSQL database, making it easier to work with unstructured data compared to SQL.

• MongoDB is schema-less, allowing for more flexibility in data modeling and changes.

• MongoDB is horizontally scalable, making it easier to handle large amounts of data and high traffic loads.

• MongoDB's document-based data ...read more
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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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2 questions, Easy and medium based

Q1. Stacks queues and array questions
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Q1. Technical questions on projects
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Q1. How to tackle any uncertain situations? Behavioural questions
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