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Mag+ Interview Questions and Answers
Mag+ Interview Experiences
1 interview found
Anonymous
Present and analysis case
(1 Question)
- Q1. Why do you want to join
(1 Question)
- Q1. What projects have you worked on
(1 Question)
- Q1. Major ralative issues nas and scenario based
Interview Preparation Tips
Consultant Interview Questions asked at other Companies
Interview questions from similar companies
Selected
I applied via Campus Placement and was interviewed before Apr 2023. There were 2 interview rounds.
(1 Question)
- Q1. Basic array question
(1 Question)
- Q1. Find the first circular tour that visits all petrol pumps
- Ans.
The first circular tour that visits all petrol pumps can be found using the concept of a circular linked list.
Create a circular linked list with each node representing a petrol pump
Calculate the difference between petrol available at each pump and the distance to the next pump
Start from a pump where the sum of differences is positive and traverse the circular linked list until completing the tour
Skills evaluated in this interview
Aditi goel
Selected
I applied via Campus Placement and was interviewed before Oct 2023. There were 3 interview rounds.
First round was a aptitude test of 25 question
(2 Questions)
- Q1. Oops concept in java
- Ans.
Oops concept in Java refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
Inheritance allows a class to inherit properties and behavior from another class.
Encapsulation involves bundling data and methods that operate on the data into a single unit.
Polymorphism allows objects to be treated as instances of their parent class.
Abstraction hides the implementation d...
- Q2. Basic multi threading questions
(2 Questions)
- Q1. Code to make a pattern and explain each and every line of code
- Ans.
Code to create a pattern and explain each line of code
Start by defining the number of rows and columns in the pattern
Use nested loops to iterate through each row and column
Decide the pattern you want to create and use conditional statements to determine the output for each position
- Q2. Puzzle: In how many minimum cut u can cut a cake in 8 piece
Skills evaluated in this interview
Selected
I applied via Recruitment Consulltant and was interviewed in Dec 2023. There was 1 interview round.
(4 Questions)
- Q1. Basic SQL question.
- Q2. Order of execution
- Ans.
The order of execution refers to the sequence in which instructions or operations are executed in a program.
The order of execution is determined by the programming language and the specific code being executed.
Generally, code is executed line by line from top to bottom.
However, there are exceptions such as loops, conditionals, and function calls that can alter the order of execution.
In some programming languages, there...
- Q3. Window functions
- Q4. Aggregate functions
Skills evaluated in this interview
(2 Questions)
- Q1. Level order tree traversal
- Q2. Find the pair element from the array
- Ans.
Find the pair element from the array
Iterate through the array and use a hashmap to store elements and their counts
Check if the current element's complement exists in the hashmap
Return the pair if found, otherwise return null
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed before Jan 2024. There was 1 interview round.
We had an aptitude test which involved 60 questions in 15 minutes. Of course, no one can solve this fast, but it was about the hit rate / accuracy and volume. Subsequent followed with two guesstimate based rounds and final as HR round which involved asking about college projects, extra curricular experiences and so on.
I applied via Campus Placement and was interviewed in Jul 2020. There were 4 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Mostly questions were asked from sql,joins were more focussed
- Q2. Puzzle mostly from gfg were asked involving analytics skills
- Q3. Guesstimates could also be asked.
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed in May 2021. There were 4 interview rounds.
Interview Questionnaire
10 Questions
- Q1. First-round was an online test on hacker rank. There were 4 questions related to the array, string, and tree.
- Q2. Create an immutable class.
- Ans.
An immutable class is a class whose instances cannot be modified after creation.
Make all fields private and final
Don't provide any setter methods
Ensure that any mutable objects passed to the constructor are defensively copied
Make the class final so that it cannot be subclassed
- Q3. Create a Singelton pattern.
- Ans.
Singleton pattern ensures only one instance of a class is created and provides a global point of access to it.
Create a private constructor to prevent direct instantiation of the class.
Create a private static instance of the class.
Create a public static method to access the instance, and create the instance if it doesn't exist.
Ensure thread safety by using synchronized keyword or double-checked locking.
- Q4. Difference between Vector and ArrayList.
- Ans.
Vector is synchronized and ArrayList is not. Vector is thread-safe and ArrayList is not.
Vector is a legacy class and ArrayList is a part of the Java Collection Framework.
Vector is synchronized which means only one thread can access it at a time, while ArrayList is not.
Vector is thread-safe which means it can be used in a multi-threaded environment, while ArrayList is not.
Vector is slower than ArrayList because of synch...
- Q5. Create Linked List without using the internal library and provide the functionality of add delete find.
- Ans.
Create Linked List without using internal library and provide add, delete, find functionality.
Create a Node class with data and next pointer
Create a LinkedList class with head pointer and methods to add, delete, and find nodes
Use a loop to traverse the list and perform operations
Handle edge cases such as adding to an empty list or deleting the head node
- Q6. One question was related to binary search.
- Q7. Few more questions related to java.
- Q8. The architecture of the current system.
- Ans.
The current system follows a microservices architecture.
The system is divided into multiple independent services.
Each service has its own database and communicates with other services through APIs.
The architecture allows for scalability and flexibility.
Examples of microservices used in the system include user authentication, payment processing, and inventory management.
- Q9. Find the total no of the island in a 2d matrix. Working code was required.
- Ans.
Find the total no of islands in a 2D matrix.
Use DFS or BFS to traverse the matrix.
Mark visited cells to avoid repetition.
Count the number of islands found.
- Q10. Find loop in a linked list.
- Ans.
Loop detection in a linked list.
Use two pointers, one moving at twice the speed of the other.
If there is a loop, the faster pointer will eventually catch up to the slower one.
If there is no loop, the faster pointer will reach the end of the list.
Interview Preparation Tips
Skills evaluated in this interview
I applied via LinkedIn and was interviewed before Apr 2022. There were 4 interview rounds.
(1 Question)
- Q1. Where do you see yourself in 5 years
(1 Question)
- Q1. How you will improve health of a marketplace
- Ans.
By analyzing data, identifying pain points, and implementing solutions to improve user experience and trust.
Analyze user behavior and feedback to identify areas of improvement
Implement measures to increase transparency and trust, such as user reviews and seller verification
Provide resources and support for dispute resolution
Encourage diversity and inclusivity in the marketplace to attract a wider range of buyers and se...
(1 Question)
- Q1. How you will design new customer support system
- Ans.
I will design a customer support system that is user-friendly, efficient, and personalized.
Conduct research to understand customer needs and preferences
Identify common customer issues and develop a knowledge base for quick resolution
Implement a ticketing system to track and prioritize customer inquiries
Integrate chatbots and AI to provide 24/7 support
Train support staff to provide personalized and empathetic service
Col...
Interview Preparation Tips
Skills evaluated in this interview
I was interviewed before Sep 2020.
(1 Question)
Round duration - 90 minutes
Round difficulty - Easy
This was MCQ+Coding round.
- Q1. How can you check if two strings are anagrams of each other?
- Ans.
Check if two strings are anagrams by comparing the sorted versions of the strings.
Sort both strings and compare if they are equal.
Use a hashmap to store the frequency of characters in each string and compare the maps.
Ignore spaces and punctuation when comparing the strings.
Round duration - 90 minutes
Round difficulty - Easy
This was face to face interview round.
Round duration - 90 minutes
Round difficulty - Easy
This was face to face interview round.
Interview Preparation Tips
Tip 1 : Participate in live contests on websites like Codechef, Codeforces etc as much as possible.
Tip 2 : Practice previous interview questions from LeetCode, GeeksForGeeks.
Tip 3 : Revise Computer Science subjects like DBMS, OOPS thoroughly.
Add projects and Internships if you have done any and add only those things which you really know.
Final outcome of the interviewSelectedSkills evaluated in this interview
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