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Practo Sde1 Interview Questions and Answers
Practo Sde1 Interview Experiences
1 interview found
I applied via Referral and was interviewed in Nov 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Find the median of two arrays
- Ans.
To find the median of two arrays, merge them and then find the middle element(s).
Merge the two arrays into a single sorted array
If the length of the merged array is odd, return the middle element
If the length of the merged array is even, return the average of the two middle elements
- Q2. Resume based questions
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Skills evaluated in this interview
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I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
Hackerrank - 3 questions 2 hrs
I applied via Referral and was interviewed in Jan 2024. There were 2 interview rounds.
Hackerrank test with medium questions
(1 Question)
- Q1. Machine coding round to design a shopping cart
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Selected
I applied via Referral and was interviewed before Jul 2023. There were 3 interview rounds.
Design splitwise. Low Level question. More like Machine Coding
Question on Strings and DP
(2 Questions)
- Q1. DynamoDB Working
- Q2. General Discussion regarding projects in previous firm
I applied via Naukri.com and was interviewed in May 2021. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. Write a react js parent and child components and show how passing props work?
- Ans.
Example of React parent and child components with props
Create a parent component with state and pass it as props to child component
Access the props in child component using 'props' keyword
Update the parent state from child component using a callback function passed as prop
Example: Parent component -
Example: Child component -
- Q2. What is closure in JS?
- Ans.
Closure is a function that has access to its outer function's variables, even after the outer function has returned.
Closure is created when a function returns another function.
The inner function has access to the outer function's variables.
Closure is used to create private variables and methods.
Example: function outer() { let x = 10; return function inner() { console.log(x); } }
Example: let closureFunc = outer(); closu
- Q3. Explain currying in JS? sum(1)(2)(); sum(2)(4)(); All these should return sum of numbers
- Ans.
Currying is a technique of transforming a function that takes multiple arguments into a sequence of functions that each take a single argument.
Currying is achieved by returning a function that takes the next argument until all arguments are received.
In JavaScript, currying is often used for partial application of functions.
The sum function in the example takes one argument and returns a function that takes the next arg...
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Skills evaluated in this interview
Sdet Automation Test Engineer Interview Questions & Answers
Paisabazaar.com
Anonymous
posted on 2 Dec 2024
I applied via LinkedIn and was interviewed in Nov 2024. There were 2 interview rounds.
(2 Questions)
- Q1. What is clousers
- Q2. What is promises
(2 Questions)
- Q1. Explain javascript architecture
- Q2. What is mvvm architecture
Questions were crayon box ,the bot and the game and happy neighbourhood for 90 mins
(2 Questions)
- Q1. Array basics was asked
- Q2. Segment tree,prefix sum
(1 Question)
- Q1. Low level design was asked
Selected
I applied via Job Fair and was interviewed in Jul 2024. There were 2 interview rounds.
2 question of DSA (easy, medium) in 60 minutes
(2 Questions)
- Q1. Playlist Shuffle
- Q2. Deletion in min heap
- Ans.
Deletion in min heap involves removing the root node and rearranging the heap to maintain the min heap property.
To delete the root node in a min heap, swap it with the last node in the heap.
Remove the last node and then heapify the heap starting from the root to maintain the min heap property.
Example: If the min heap is [10, 20, 30, 25, 40], after deletion the heap becomes [20, 25, 30, 40].
Skills evaluated in this interview
I applied via Instahyre
1 hr, Java questions, SQL question, 1 DSA question
(1 Question)
- Q1. LLD about Hotel Booking system
(1 Question)
- Q1. Discussed about the project
I applied via Company Website and was interviewed in Jun 2024. There was 1 interview round.
Implement your own state management in React and integrate it into a React application.
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Practo Sde1 Interview Process
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