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I applied via Approached by company and was interviewed before Feb 2021. There were 2 interview rounds.
Good
Design an online chess system
Create a database to store user information and game data
Develop a user interface for playing chess online
Implement game logic and rules
Incorporate features such as chat, leaderboards, and game history
Ensure security measures are in place to prevent cheating
ConcurrentHashMap is a thread-safe implementation of the Map interface in Java.
It allows multiple threads to read and write to the map concurrently.
It uses a technique called lock striping to divide the map into segments, each with its own lock.
It provides better performance than synchronized HashMap in multi-threaded environments.
It supports atomic operations like putIfAbsent() and replace().
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posted on 2 Dec 2015
I appeared for an interview in Dec 2016.
posted on 13 Mar 2015
I applied via Campus Placement
ATM transaction involves multiple background processes including authentication, authorization, and communication with bank servers.
Customer inserts card and enters PIN
ATM authenticates the card and PIN
ATM requests authorization from bank server
Bank server verifies account balance and approves or denies transaction
ATM dispenses cash or completes other requested transaction
ATM updates account balance and sends transacti
Cut cake into 8 pieces using knife 3 times only.
First, cut the cake horizontally into two equal halves.
Then, cut the cake vertically into four equal pieces.
Finally, cut the cake horizontally again into eight equal pieces.
Make sure to use the knife efficiently to minimize the number of cuts.
Practice visualization before making the cuts to avoid mistakes.
The one bird was already dead.
The bird was already dead before the shot was fired.
The bird was injured and unable to fly away with the rest of the birds.
The bird was a decoy bird used for hunting purposes.
The bird was a trained bird used for falconry.
Developed a web-based attendance management system and a mobile app for event management.
Created a database schema and implemented CRUD operations using PHP and MySQL.
Designed the user interface using HTML, CSS, and JavaScript.
Integrated Google Maps API for location tracking in the mobile app.
Implemented push notifications using Firebase Cloud Messaging.
Collaborated with a team of four to complete the projects within t
I applied via Campus Placement
I appeared for an interview before Dec 2020.
Round duration - 90 Minutes
Round difficulty - Medium
Coding round was conducted in the morning for 1.5 hours from 10:00 am to 11:30 am. Exam was conducted on HACKEREARTH which is a user-friendly platform with various edge test-cases. Since exam was done through online mode due to COVID-19, therefore camera was on for invigilation. A well working camera and microphone were needed for successful completion of exam.
Ninja is provided with a dictionary of words, WORDS
, and a sentence, SENTENCE
, which consists of words separated by spaces. The goal is to minimize the size of ...
The goal is to minimize the size of a sentence by replacing words with prefixes from a given dictionary.
Iterate through each word in the sentence and check if a prefix exists in the dictionary
Replace the word with the smallest prefix found in the dictionary
Repeat the process for all words in the sentence
Tip 1 : Do not totally depend on past interview questions or as such unless and until you have a strong foundation. Just build the foundation first in starting months.
Tip 2 : More focus should be on problem-solving skills. Develop the skills of using applications.(Eg.: Where one should use Hashmap, Arraylist, etc.)
Tip 3 : Try to solve the problem on your own. Just sink yourself into the question so much that you don't need to look for the solution.(Figure out solution in your own way).
Tip 4 : Regarding project, quantity doesn't matter but what matters the most is you should know about the project from start to end. Able to explain the project clearly. Be ready with technical as well as Behavioral questions.
Tip 1 : Get rid of irrelevant topics or headings.(Eg. Stood 1st in Annual Sack Race Competition.)
Tip 3 : Make sure you don't keep anything which create problem at time of Interview.
Tip 4 : Short and crisp Resume with each spelling checked twice.
Tip 5 : Keep updating your resume based on addition of Internship/Projects, etc.
Tip 6 : Keep the file name(Resume saved as pdf or any format) decent too.
I applied via Naukri.com and was interviewed before Jul 2023. There was 1 interview round.
I applied via Recruitment Consulltant and was interviewed before Jun 2023. There were 3 interview rounds.
Nested graph question, matrix question on hackerrank
Two tables performing different types of joins
Inner join: Returns rows when there is a match in both tables
Left join: Returns all rows from the left table and the matched rows from the right table
Right join: Returns all rows from the right table and the matched rows from the left table
Full outer join: Returns all rows when there is a match in either table
I applied via Campus Placement and was interviewed in Mar 2024. There were 3 interview rounds.
It was easy they were asked cognitive,verble,reasoning questios and 2 coding question,and 1 sql query it was online
based on 2 reviews
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