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I appeared for an interview before Sep 2023.
Code was of leetcode medium level.
Inner join of three tables in SQL
Use the JOIN keyword to combine three tables based on a common column
Specify the columns to select from each table
Use the ON keyword to specify the join condition
Cross join is a type of join operation in SQL that returns the Cartesian product of two tables.
Cross join does not require any matching condition between the tables.
It combines each row from the first table with every row from the second table.
Cross join can result in a large number of rows if the tables are big.
Example: SELECT * FROM table1 CROSS JOIN table2;
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posted on 23 Oct 2024
I applied via Naukri.com and was interviewed in Sep 2024. There were 3 interview rounds.
Divisibility, LCM, HCF.
Numbers, Decimals, Fractions, Powers.
Profit, Loss.
Simple interest and Compound interest.
Speed, Distance, Time.
Work and wages.
Trains, Boats, Streams-upstream/downstream, Circular track questions.
Cistern and pipes.
Coding interviews test candidates' technical knowledge, coding ability, problem solving skills, and creativity, typically on a whiteboard.
Choose a topic based on the assignment.
2 Conduct research.
3 Write a thesis statement
posted on 28 Jun 2024
I applied via Naukri.com and was interviewed in Dec 2023. There was 1 interview round.
60 Minute Duration on 3 topics, including logical, oop and mathematical
I applied via Job Fair and was interviewed in May 2024. There was 1 interview round.
Questions trees and graphs.
2 DSA questions Both are from DP
posted on 14 May 2024
Event loop in Node.js manages asynchronous operations by executing callback functions when certain events occur.
Event loop is responsible for handling I/O operations, timers, and callbacks in Node.js
It allows Node.js to perform non-blocking operations efficiently
Event loop continuously checks the event queue for new events to execute
posted on 15 Nov 2024
I applied via Referral and was interviewed in Oct 2024. There was 1 interview round.
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
Promises are used to handle asynchronous operations in JavaScript.
They can be in one of three states: pending, fulfilled, or rejected.
Promises can be chained using .then() to handle success and .catch() to handle errors.
I applied via Campus Placement and was interviewed in Sep 2023. There were 4 interview rounds.
Aptitude test was of 1 hr
It was about 1 hr duration
Object-oriented programming paradigm focusing on objects and classes
Encapsulation: Bundling data and methods that operate on the data into a single unit (object)
Inheritance: Ability of a class to inherit properties and behavior from another class
Polymorphism: Ability to present the same interface for different data types
Abstraction: Hiding the complex implementation details and showing only the necessary features
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
Encapsulation helps in hiding the internal state of an object and restricting access to it.
It allows for better control over the data by preventing outside interference.
Encapsulation also promotes code reusability and modularity.
Example: In object-oriented programming, classes encapsulate data fields and methods to ope
2 Query question and 3 coding questions
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
Objects are instances of classes, which define the structure and behavior of the objects.
Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.
Example: Java, C++, Python are popular languages that support object oriented programming.
Events in JavaScript are actions or occurrences that happen in the browser that the code can respond to.
Events can be triggered by user actions (like clicking a button), browser actions (like page load), or system events (like a timer expiring)
Event listeners are used to listen for and respond to events
Common events include click, mouseover, keydown, submit, etc.
Project , coding question, DBMS
I appeared for an interview in Jun 2021.
Round duration - 180 minutes
Round difficulty - Hard
The test link had 3 days expiry so I could attempt test anytime. It was conducted on doselect.com
You are given an array/list named 'SEQUENCE', which consists of 'N' integers. The task is to identify all equilibrium indices in this sequence.
An equilibr...
The task is to find the equilibrium indices of a given sequence, where the sum of elements at lower indices is equal to the sum of elements at higher indices.
Iterate through the sequence and calculate the total sum of all elements
Initialize a left sum and right sum as 0
For each index, update the left sum and right sum and check if they are equal
If they are equal, add the index to the equilibrium indices
Return the equil
Round duration - 60 minutes
Round difficulty - Medium
Video interview round wherein I was asked to wrote code for the problem statements given by the interviewer. The problems were mainly focused on advanced JS concepts like asynchonous progamming, timers, closures, and data structure problems around arrays, sets, linked list etc.
Given a singly linked list in the form 'L1' -> 'L2' -> 'L3' -> ... 'Ln', your task is to rearrange the nodes to the form 'L1' -> 'Ln' -> 'L2' -> '...
The task is to rearrange the nodes of a singly linked list in a specific order without altering the data of the nodes.
Iterate through the linked list to find the middle node using the slow and fast pointer technique.
Reverse the second half of the linked list.
Merge the first and reversed second half of the linked list alternatively to get the desired order.
Round duration - 30 minutes
Round difficulty - Easy
This was the last round with HR wherein they judged cultural fit and there was discussion on things like my expectations v/s their expectations etc.
Tip 1 : Get well versed with the fundamentals of Javascript including advanced concepts like promises, async/await, generators, higher order functions, closures, currying etc.
Tip 2 : Do some projects on MERN Stack because a lot of projects here use some or all of those technologies
Tip 3 : Do prepare for behavioral/cultural-fit questions especially around how you'll handle various stituations during work or how will you manage productivity while working remotely.
Tip 1 : Having projects on MERN stack will give you advantage
Tip 2 : Do mention if you have any AWS experience.
Tip 3 : Mention all your internships/past experiences. Keep them crisp and talk about what you did and it's impact/outcome.
Tip 4 : Any experience/exposure to blockchain will definitely give brownie points.
based on 1 interview
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