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I appeared for an interview before Mar 2024, where I was asked the following questions.
Basic Aptitude test
Coding Round is little tough.
I applied via Approached by Company and was interviewed before Apr 2023. There were 2 interview rounds.
They will give you problem to solve
Machine coding round
I applied via Referral and was interviewed before Oct 2023. There were 3 interview rounds.
Use a hash set to find duplicates in an array of strings.
Create a hash set to store unique elements.
Iterate through the array and check if the element is already in the hash set.
If it is, then it is a duplicate. If not, add it to the hash set.
Find the single duplicate element in an array of strings with length n-1.
Iterate through the array and use a HashSet to keep track of elements seen so far.
If an element is already in the HashSet, that is the duplicate element.
Return the duplicate element once found.
Create a student support system
Design an order and payments system for an EdTech company
Allow users to browse and select courses
Implement a shopping cart for users to add courses
Integrate payment gateways for secure transactions
Provide order confirmation and receipt to users
Allow users to track their order status
I applied via Naukri.com and was interviewed in Sep 2022. There were 3 interview rounds.
Basic coding maths aptitude java python communication skills test
Java coding c plus python SQL oracle dbmsos
I applied via Referral and was interviewed in Jul 2024. There were 3 interview rounds.
SQL- 1 departments with no users
2 dept_id and their respective no. of users
DSA1: Most frequent no. in an array
DSA2: Zero Sum subarray exists
posted on 19 Oct 2017
I appeared for an interview in Mar 2021.
Round duration - 45 minutes
Round difficulty - Medium
Timing (10 am- 11 am)
For this round I had slightly more time than the last, due to the fact that the weekend fell in between.The interviewer was very very cool and helping this time, something which I kept at the last in my list of probable things that can happen during an interview. Duration of this round was around 45 minutes.
You are given 'N' ropes, each of varying lengths. The task is to connect all ropes into one single rope. The cost of connecting two ropes is the sum of their lengths. Yo...
Connect ropes with minimum cost by merging smallest ropes first.
Sort the array of rope lengths in ascending order.
Merge the two smallest ropes at each step to minimize cost.
Keep track of the total cost as you merge the ropes.
Repeat the merging process until all ropes are connected.
Return the total cost as the minimum cost to connect all ropes.
You are given a binary tree with 'N' integer nodes. Your task is to determine whether this binary tree is a Binary Search Tree (BST).
A Binary Search Tr...
Validate if a given binary tree is a Binary Search Tree (BST) or not.
Check if the left subtree of a node contains only nodes with data less than the node's data.
Check if the right subtree of a node contains only nodes with data greater than the node's data.
Recursively check if both the left and right subtrees are also binary search trees.
Round duration - 30 minutes
Round difficulty - Medium
This round was on call where I was just supposed to answer the HRquestions that were asked. It started with a brief interview with one another and then moved to questions on DBMS, operating systems, computer networks and all. Almost 10-15 questions were asked and I probably answered 90% of them correctly.
Tip 1 : practice on gfg and coding ninjas
Tip 2 : compete in online coding contests
Tip 3 : learn DSA and practice regularly from GFG or leetcode
Tip 1 : put your entire valuable experience in brief
Tip 2 : put the handle of you competitive coding profiles
I applied via Naukri.com and was interviewed before Oct 2022. There were 4 interview rounds.
Implement login with Google SSO, show emails in a single place
JWT can be implemented by generating a token with user information and a secret key, then verifying the token using the same secret key.
Generate a JWT token with user information and a secret key
Include necessary claims like expiration time, issuer, etc.
Verify the JWT token using the same secret key
Handle token expiration and refresh if needed
Middleware in Express is a function that has access to the request and response objects.
Create a middleware function using app.use() method in Express.
Middleware functions have access to the request object (req), the response object (res), and the next middleware function in the application's request-response cycle.
Example: app.use((req, res, next) => { console.log('This is a middleware function'); next(); });
Lazy loading in Angular delays loading of modules until they are needed
Lazy loading helps improve performance by only loading modules when they are required
It is achieved by using the loadChildren property in the route configuration
Lazy loaded modules are loaded asynchronously when the user navigates to the corresponding route
Server-side rendering (SSR) in Angular can be enabled by using Angular Universal.
Install Angular Universal using Angular CLI
Create a new Angular Universal project
Update app.module.ts to include server-side rendering
Build and run the Angular Universal project
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