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24/7 Customer SDE-2 Interview Questions and Answers

Updated 21 Mar 2022

24/7 Customer SDE-2 Interview Experiences

1 interview found

SDE-2 Interview Questions & Answers

user image Anonymous

posted on 21 Mar 2022

I was interviewed before Mar 2021.

Round 1 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Medium

Technical Interview round with questions on DSA.

  • Q1. 

    LRU Cache Design Question

    Design a data structure for a Least Recently Used (LRU) cache that supports the following operations:

    1. get(key) - Return the value of the key if it exists in the cache; otherw...

  • Q2. 

    Minimum Number of Platforms Problem

    Your task is to determine the minimum number of platforms required at a railway station so that no train has to wait.

    Explanation:

    Given two arrays:

    • AT - represent...
Round 2 - Face to Face 

(1 Question)

Round duration - 45 minutes
Round difficulty - Medium

Technical Interview round with DSA based questions.

  • Q1. 

    Reverse a Linked List Problem Statement

    You are given a Singly Linked List of integers. Your task is to reverse the Linked List by changing the links between nodes.

    Input:

    The first line of input contai...

Interview Preparation Tips

Eligibility criteriaAbove 1 years of experience24/7 customer private limited interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewRejected

Skills evaluated in this interview

Interview questions from similar companies

SDE-2 Interview Questions & Answers

Atlassian user image komal kungwani

posted on 15 Mar 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Leetcode Interview Question company tag atlassian. Some modifications of those
Round 2 - Technical 

(1 Question)

  • Q1. Design a web crawler
  • Ans. 

    Design a web crawler to fetch and index web pages

    • Start by defining the scope of the crawler (e.g. which websites to crawl)

    • Implement a system to fetch web pages using HTTP requests

    • Parse the HTML content to extract relevant information (e.g. links, text)

    • Store the extracted data in a database or index for later retrieval

    • Implement a scheduling mechanism to prioritize and manage the crawling process

  • Answered by AI

Skills evaluated in this interview

Round 1 - Technical 

(4 Questions)

  • Q1. What is React Context?
  • Ans. 

    React Context is a feature in React that allows data to be passed down the component tree without having to pass props manually.

    • Context provides a way to share values like themes, user data, etc. across the component tree.

    • It avoids prop drilling, where props are passed down multiple levels to reach a component that needs them.

    • Context consists of two parts: a Provider component that provides the data and a Consumer comp...

  • Answered by AI
  • Q2. What is meant by closure in javascript?
  • Ans. 

    Closure is a function that has access to its parent scope, even after the parent function has closed.

    • Closure is created when a function is defined inside another function.

    • The inner function has access to the outer function's variables and parameters.

    • The outer function returns the inner function, which can be called later with the parent scope still accessible.

    • Closures are used for data privacy, event handlers, and call

  • Answered by AI
  • Q3. What are the complicated tasks you've done exceeding everyone's expectation?
  • Q4. Algorithm to convert roman numeral to numbers?
  • Ans. 

    Algorithm to convert roman numeral to numbers

    • Create a dictionary to map roman numerals to their corresponding values

    • Iterate through the roman numeral string from right to left

    • If the current value is less than the previous value, subtract it from the total

    • If the current value is greater than or equal to the previous value, add it to the total

    • Return the total

  • Answered by AI
Round 2 - Technical 

(4 Questions)

  • Q1. What is React context?
  • Ans. 

    React context is a way to pass data through the component tree without having to pass props down manually at every level.

    • Context provides a way to share values like a theme or user data across the component tree.

    • It avoids prop drilling and makes the code cleaner and more maintainable.

    • Context consists of two parts: a Provider component that provides the data and a Consumer component that consumes the data.

    • Context can be...

  • Answered by AI
  • Q2. What is abstract class in javascript?
  • Ans. 

    There is no abstract class in JavaScript.

    • JavaScript does not have a built-in abstract class concept.

    • However, it is possible to create abstract classes using functions and prototypes.

    • Abstract classes are used as blueprints for other classes to inherit from.

    • They cannot be instantiated on their own and must be extended by a subclass.

    • Abstract methods can be defined in the abstract class and must be implemented in the subcl

  • Answered by AI
  • Q3. What is meant by function overloading and function overriding?
  • Ans. 

    Function overloading is when multiple functions have the same name but different parameters. Function overriding is when a subclass provides its own implementation of a method that is already present in the parent class.

    • Function overloading is used to provide multiple ways to call a function with different parameters.

    • Function overriding is used to provide a specific implementation of a method in a subclass.

    • Function ove...

  • Answered by AI
  • Q4. Implement counter in react app
  • Ans. 

    Implement a counter in a React app

    • Create a state variable to hold the count

    • Render the count in the UI

    • Add buttons to increment and decrement the count

    • Update the state variable on button click

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Basic concepts in js was asked. JS classes questions was also asked

Skills evaluated in this interview

Sde1 Interview Questions & Answers

UKG user image Anonymous

posted on 7 Aug 2024

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-

I applied via Approached by Company

Round 1 - Coding Test 

Aptitude and coding round, one coding question and others are computer fundamentals

Round 2 - Technical 

(2 Questions)

  • Q1. Return true if Subarray is present whose sum is 0
  • Q2. Project, oops, dbms
Round 3 - Technical 

(2 Questions)

  • Q1. Subarray sun equal to k
  • Q2. Project, oops, dbms
Round 4 - HR 

(1 Question)

  • Q1. Did not got slected i answered all still
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - Technical 

(2 Questions)

  • Q1. Star pattern questions
  • Q2. Hashing implementation
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
-

I applied via Instahyre and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Coding Test 

It was on hackerrank(OA). There were two string and array based medium question.(Part of Blind 75 list)

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed in Sep 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

General aptitude and out put realted questions

Round 2 - Coding Test 

Face to face dsa and string manipulations

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Write a java program to convert the first letter of each word in upper case
  • Ans. 

    Java program to convert first letter of each word to upper case

    • Split the input string into an array of words

    • Iterate through each word and capitalize the first letter

    • Join the words back together into a single string

  • Answered by AI
  • Q2. Write a java program to remove the duplicate characters from a string
  • Ans. 

    Java program to remove duplicate characters from a string

    • Create a HashSet to store unique characters

    • Iterate through the string and add each character to the HashSet

    • Construct a new string by appending characters from the HashSet

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare well

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Git workflow and xpath. Reverse a string
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Aptitude and coding question were asked

Round 2 - Technical 

(1 Question)

  • Q1. Question related to your project

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