i
Extramarks Education
Filter interviews by
Polymorphism is the ability of an object to take on many forms. A real-time example is a Shape class with different subclasses like Circle, Square, and Triangle.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
It enables code reusability and flexibility in object-oriented programming.
For example, a Shape class can have a draw() method that is overridden by its subclasses ...
Authentication verifies the identity of a user, while authorization determines what actions they can perform.
Authentication confirms the user's identity through credentials like username and password.
Authorization grants or denies access to specific resources or actions based on the user's authenticated identity.
Authentication precedes authorization in the security process.
Example: Logging into a website with a usernam...
I applied via Company Website
I applied via Campus Placement and was interviewed before Mar 2023. There were 4 interview rounds.
Coding Test consist of 3 coding question, 2 sql questions and 10 output question.
I applied via Job lever and was interviewed before Sep 2021. There were 2 interview rounds.
Easy leetcode code 2 questions , HTML5 css javascript simple screen design
I was interviewed before Sep 2020.
Round duration - 120 minutes
Round difficulty - Easy
It was a mix of mathematical aptitude, logical ability, and puzzles along with 2 programming questions of easy and medium level. Time was enough and no sectional time was present. 1-2 MCQs on SQL were also present.
This round was immediately followed by an SHL aptitude test which was basically a quick limited time check of your verbal ability and math because many questions were to be done in 1 hour.
Given a 2-dimensional boolean matrix mat
of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
Iterate through the matrix and mark rows and columns to be modified
Use additional arrays to keep track of rows and columns to be modified
Update the matrix in-place based on the marked rows and columns
Round duration - 60 minutes
Round difficulty - Easy
It was an online video interview round on HackerEarth with simultaneous code option. It was mostly justifying your resume in the first 15 minutes. After that OOPS was majorly asked. Basics of programming including questions on STL were asked. A class which required inheritance was asked by the interviewer to write. I was helped by the interviewer if i got stuck somewhere, Some questions on implementation of hashmaps and priority queues were also asked. A puzzle was asked which luckily struct to me at that moment.
Tip 1 : Never give up
Tip 2 : When u start a topic, don't move on to next topic before you are 100% confident in previous topic
Tip 3 : Try to give maximum time on basics of a topic especially OOPS
Tip 4 - Practice Atleast 250 Questions
Tip 5 - Ex- Do atleast 2 projects
Tip 1 : Write only those things in resume in which you are 100% confident
Tip 2 : Write maximum projects you have and be ready to explain them thoroughly
Tip 3 : Don't make any silly spelling mistakes on resume
Coding test around front end using react
I applied via Job Portal and was interviewed before Nov 2023. There were 3 interview rounds.
Use a user table with a column for user type (free, gold, platinum)
Create a user table with columns for user ID, name, email, user type
Use a separate table for user types with columns for type ID and type name
Establish a one-to-many relationship between user and user type tables
Example: user table - user_id, name, email, type_id; user_type table - type_id, type_name
High-level design for a live rank dashboard for a live test with millions of users.
Use a scalable architecture to handle millions of users concurrently.
Implement real-time data processing to update ranks dynamically.
Utilize caching mechanisms to improve performance and reduce load on the database.
Design a user-friendly interface with intuitive data visualization.
Include features for filtering, sorting, and searching to
I was interviewed before May 2021.
Round duration - 60 Minutes
Round difficulty - Easy
It was an coding round
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette when viewed from a distance. Each building is ...
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette.
Iterate through the buildings and create a list of critical points (x, y) where the height changes.
Sort the critical points based on x-coordinate and process them to form the skyline.
Merge consecutive horizontal segments of equal height into one to ensure no duplicates.
Return the fin...
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...
Find all possible paths for a rat in a maze from source to destination.
Use backtracking to explore all possible paths in the maze.
Keep track of visited cells to avoid revisiting them.
Recursively try moving in all directions (up, down, left, right) until reaching the destination.
Return a list of strings representing valid paths sorted in alphabetical order.
Round duration - 30 Minutes
Round difficulty - Easy
It was an HR round with some general questions. it was just for formality.
Tip 1 : Stay focused
Tip 2 : Practice coding questions.
Tip 3 : View previous interviews of the companies
Tip 1 : Don't lie on resume
Tip 2 : Just write in format that is catchy
I was interviewed in Jan 2021.
Round duration - 70 minutes
Round difficulty - Easy
We're provided with 60 minutes.
We're provided with desktop as it was online test.
Determine if a given year, represented as an integer 'N', is a leap year.
A leap year is defined as a year with 366 days, unlike a normal year which has 365 days.
The initial i...
The task is to determine if a given year is a leap year or not.
Check if the year is divisible by 4, if yes then proceed to next step
If the year is divisible by 100, then it should also be divisible by 400 to be a leap year
If the year satisfies both conditions, output 'Yes', else output 'No'
Round duration - 25 minutes
Round difficulty - Easy
They basically ask questions related to operating system
Round duration - 15 minutes
Round difficulty - Easy
There were 2 interviewers who talked to me and ask different questions regarding my company, my experience in college etc.
It was kind of chit chat but basically they were testing my conversation skills.
Tip 1 : Try to give mock interview as much as you can
Tip 2 : Good with technical skills
Tip 1 : Mention good projects
Tip 2 : Any internship will be add-on
based on 1 interview
Interview experience
based on 5 reviews
Rating in categories
Business Development Executive
871
salaries
| ₹0 L/yr - ₹0 L/yr |
Assistant Manager
619
salaries
| ₹0 L/yr - ₹0 L/yr |
Senior Business Development Executive
570
salaries
| ₹0 L/yr - ₹0 L/yr |
Business Development Manager
391
salaries
| ₹0 L/yr - ₹0 L/yr |
Area Sales Manager
272
salaries
| ₹0 L/yr - ₹0 L/yr |
BYJU'S
Toppr
Unacademy
MeritNation