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Unthinkable Solutions Full Stack Developer Interview Questions and Answers

Updated 18 Jul 2024

Unthinkable Solutions Full Stack Developer Interview Experiences

1 interview found

Full Stack Developer Interview Questions & Answers

user image Divyanshu Patheja

posted on 18 Jul 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Coding Test 

Hacker earth DSA questions

Round 2 - Technical 

(2 Questions)

  • Q1. Find loop in linked list
  • Ans. 

    Use Floyd's Tortoise and Hare algorithm to find a loop in a linked list.

    • Initialize two pointers, slow and fast, at the head of the linked list.

    • Move slow pointer by one step and fast pointer by two steps.

    • If they meet at some point, there is a loop in the linked list.

  • Answered by AI
  • Q2. Longest common substring
  • Ans. 

    Finding the longest common substring among a set of strings.

    • Iterate through all substrings of the first string and check if they are present in all other strings.

    • Keep track of the longest common substring found so far.

    • Return the longest common substring.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare DSA,SQL ,oops concepts

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview before Mar 2021.

Round 1 - Coding Test 

Round duration - 30 minutes
Round difficulty - Medium

This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.

Round 2 - Coding Test 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Medium

In this test round, 2 coding questions were given. Either write the code or pseudo code

  • Q1. 

    N Queens Problem

    Given an integer N, find all possible placements of N queens on an N x N chessboard such that no two queens threaten each other.

    Explanation:

    A queen can attack another queen if they ar...

  • Ans. 

    The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard without threatening each other.

    • Use backtracking algorithm to explore all possible configurations.

    • Keep track of rows, columns, and diagonals to ensure queens do not threaten each other.

    • Generate all valid configurations and print them out.

  • Answered by AI
  • Q2. 

    Sort 0 1 2 Problem Statement

    Given an integer array arr of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.

    Input:

    The first line contains an integer 'T' representing the n...
  • Ans. 

    Sort an array of 0s, 1s, and 2s in linear time complexity.

    • Use three pointers to keep track of 0s, 1s, and 2s while traversing the array.

    • Swap elements based on the values encountered to sort the array in-place.

    • Time complexity should be O(N) and space complexity should be O(1).

  • Answered by AI
Round 3 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DSA.

  • Q1. 

    Reverse Words in a String: Problem Statement

    You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...

  • Ans. 

    Reverse words in a string while handling leading, trailing, and multiple spaces.

    • Split the input string by spaces to get individual words

    • Reverse the order of the words

    • Join the reversed words with a single space in between

  • Answered by AI
  • Q2. 

    Circular Linked List Detection

    You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.

    Note:
    • A linked list is considered circula...
  • Ans. 

    Detect if a given linked list is circular by checking if it forms a closed loop.

    • Traverse the linked list using two pointers, one moving at double the speed of the other.

    • If the two pointers meet at any point, the linked list is circular.

    • If the faster pointer reaches the end of the list (NULL), the linked list is not circular.

  • Answered by AI
Round 4 - HR 

Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAMAQ Software interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 5 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Aptitude Test 

The basic question is related to profit percentage, time and distance

Round 2 - system design 

(1 Question)

  • Q1. Is the database schema of any type?
  • Ans. 

    Yes, the database schema can be of various types such as relational, hierarchical, network, object-oriented, etc.

    • Relational database schema is the most common type, using tables to store data with relationships between them.

    • Hierarchical database schema organizes data in a tree-like structure.

    • Network database schema allows multiple relationships between records.

    • Object-oriented database schema stores data as objects with...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

BASIC DSA LIKE ARRAY AND STRING

Round 2 - Technical 

(2 Questions)

  • Q1. System Design for Electric Charger app ?
  • Ans. 

    System design for an electric charger app involves creating a user-friendly interface, integrating with payment systems, and ensuring efficient charging station management.

    • Design a user-friendly interface for users to locate and reserve charging stations

    • Integrate with payment systems for seamless transactions

    • Implement efficient charging station management to monitor availability and maintenance

    • Consider scalability for ...

  • Answered by AI
  • Q2. Design digram for that ?
  • Ans. 

    Design diagram for a software developer role.

    • Use UML diagrams to show class relationships and interactions

    • Include components like classes, interfaces, relationships, and methods

    • Consider using tools like Lucidchart or draw.io for creating the diagram

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't go for this company . Package is very bad.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Aug 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Very basic aptitude questions along with few coding questions

Round 2 - Technical 

(2 Questions)

  • Q1. A problem statement was given and we had to provide an optimal approach to design and handle that problem
  • Q2. Oops concepts, SQL queries
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(2 Questions)

  • Q1. What is the work experience
  • Ans. 

    Work experience refers to the practical knowledge and skills gained from previous employment.

    • Work experience includes previous jobs, internships, and projects related to the field.

    • It showcases the candidate's ability to apply theoretical knowledge in real-world scenarios.

    • Employers look for relevant work experience to assess the candidate's capabilities and fit for the role.

  • Answered by AI
  • Q2. What is the data skill set
  • Ans. 

    Data skill set refers to the abilities and knowledge related to handling, analyzing, and interpreting data.

    • Proficiency in data analysis tools such as SQL, Python, R, or Excel

    • Understanding of data structures and algorithms

    • Experience with data visualization techniques like Tableau or Power BI

    • Knowledge of statistical analysis and machine learning concepts

    • Ability to clean and preprocess data for analysis

  • Answered by AI
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Aug 2023. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

There was aptitude test in the first round, They were mainly quantitative, English questions..
And we had coding questions (3 questions) and they were medium questions..

Round 3 - System Design 

(2 Questions)

  • Q1. We had given a problem statement, and we had to write down the solution (technical solution) and it was pen and paper based..
  • Q2. Emergency traffic signal system, in case of ambulance
Round 4 - HR 

(1 Question)

  • Q1. They asked mainly based on the system design which we had written and about our projects etc...
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

It was basic test. online.

Round 3 - Coding Test 

2 questions on arrays. online.

Round 4 - Group Discussion 

The general topic. Be point to point

Round 5 - Technical 

(1 Question)

  • Q1. SQL and Python questions. online. screen sharing

I applied via Walk-in and was interviewed in Dec 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 

Basic Programming questions will be there

Round 2 - Technical 

(2 Questions)

  • Q1. Why Java is most secured!?
  • Ans. 

    Java is most secured due to its strong memory management, bytecode verification, and security manager.

    • Java's strong memory management prevents buffer overflow and other memory-related vulnerabilities.

    • Bytecode verification ensures that the code is safe to execute and prevents malicious code from running.

    • Security manager allows fine-grained control over access to system resources.

    • Java also has a robust set of security AP...

  • Answered by AI
  • Q2. Explain how Java program execute?
  • Ans. 

    Java programs are executed by the Java Virtual Machine (JVM) which interprets and executes the bytecode generated by the Java compiler.

    • Java source code is compiled into bytecode by the Java compiler

    • The bytecode is platform-independent and can be executed on any device with a JVM

    • The JVM interprets the bytecode and executes the instructions

    • The JVM manages memory, handles exceptions, and provides other runtime services

    • Exa

  • Answered by AI
Round 3 - One-on-one 

(1 Question)

  • Q1. Communication and basic technical questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Attend the interview casually and enhance well yourself in communication wise as well as technically.. Kudos...

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Difficulty level is medium

Round 2 - Technical 

(1 Question)

  • Q1. Medium about java and database
Round 3 - HR 

(1 Question)

  • Q1. Medium level - about project

Unthinkable Solutions Interview FAQs

How many rounds are there in Unthinkable Solutions Full Stack Developer interview?
Unthinkable Solutions interview process usually has 2 rounds. The most common rounds in the Unthinkable Solutions interview process are Coding Test and Technical.
What are the top questions asked in Unthinkable Solutions Full Stack Developer interview?

Some of the top questions asked at the Unthinkable Solutions Full Stack Developer interview -

  1. Find loop in linked l...read more
  2. Longest common substr...read more

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Unthinkable Solutions Full Stack Developer Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more

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