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I applied via Recruitment Consulltant and was interviewed in Feb 2024. There was 1 interview round.
It started with basic introduction, than move ahead with Java, Spring boot question in the end, he asked one leetcode medium question based on DP . Ques : Find a minimum number of jumps required to reach the end of the array, and each index , it can jump arr[index] time at max, you need to calculate minimum number of steps required to reach at the end.
2 dsa questions need to be implemented in 1hr
Implemented vector data structure in C++
Used templates to create a generic vector class
Implemented basic vector operations like push, pop, insert, erase
Optimized vector resizing by using exponential growth
Used iterators to traverse the vector elements
Implemented vector algorithms like sort and binary search
I was interviewed in Oct 2021.
Round duration - 60 Minutes
Round difficulty - Hard
Given an integer N, determine and print all the prime numbers between 2 and N, inclusive.
Integer N
Prime numbers printed on separate lines
Generate and print all prime numbers between 2 and N, inclusive.
Iterate from 2 to N and check if each number is prime
A prime number is only divisible by 1 and itself
Print each prime number on a new line
Round duration - 60 Minutes
Round difficulty - Hard
Given two strings 'STR' and 'PTR', identify all starting indices of 'PTR' anagram substrings in 'STR'. Two strings are anagrams if one can be rearranged to form the other.
Implement a function to find all starting indices of anagram substrings of a given string in another string.
Create a frequency map of characters in the 'PTR' string.
Use a sliding window approach to check for anagrams in 'STR'.
Return the starting indices of anagram substrings found.
Example: For input 'BACDGABCD' and 'ABCD', output should be [0, 5].
Round duration - 60 Minutes
Round difficulty - Hard
Common testing questions related to Linux and operating systems
What are the different types of testing that can be performed on a Linux operating system?
How do you test the compatibility of software with different Linux distributions?
Can you explain the process of testing kernel modules in a Linux environment?
What tools and techniques do you use for performance testing on Linux systems?
How do you ensure the security an
Tip 1 : practice coding
Tip 2 : be thorough with your resume
Tip 1 : have good projects
Tip 2 : fulfill the required tech stack
Top trending discussions
I applied via Approached by Company and was interviewed before Jun 2021. There were 2 interview rounds.
Frameworks provide structure and pre-built components for software development, but can also limit flexibility and require learning curve.
Advantage: Provides structure and pre-built components for faster development
Advantage: Can improve code quality and maintainability
Disadvantage: Can limit flexibility and customization
Disadvantage: Requires learning curve and potential dependency issues
Example: ReactJS provides a fr...
Oops stands for Object-Oriented Programming. It is a programming paradigm that uses objects to represent real-world entities.
Advantages: code reusability, modularity, encapsulation, inheritance, polymorphism
Disadvantages: complexity, steep learning curve, performance overhead
Example: creating a class 'Car' with properties like 'make', 'model', and 'year', and methods like 'start_engine' and 'stop_engine'
I applied via Recruitment Consultant and was interviewed in May 2021. There were 4 interview rounds.
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
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.
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...
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
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.
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.
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.
It is simple MCQ machine test and test result is generated then forwarded for First round which is telephonic round.
This round is on Zoom and will try to check your coding knowledge. Like your role in existing project in current company etc. Totally project related
I applied via Naukri.com and was interviewed before Dec 2022. There were 3 interview rounds.
You have to do programming test. This is based on logical question.
I applied via Approached by Company and was interviewed before Oct 2021. There were 6 interview rounds.
Simple programming test from mettl website
I was interviewed in May 2023.
Some mcq questions on Java and 2 DSA medium questions
BookMyShow low level design for ticket booking system
Use microservices architecture for scalability and flexibility
Implement user authentication and authorization for secure transactions
Utilize databases for storing user and event information
Include payment gateway integration for seamless transactions
LRU cache is a data structure that stores a fixed number of items and removes the least recently used item when the cache is full.
Use a combination of a doubly linked list and a hashmap to implement the LRU cache.
When an item is accessed, move it to the front of the linked list to mark it as the most recently used item.
When adding a new item, check if the cache is full. If it is full, remove the least recently used ite...
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