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Dream11 SDE-2 Interview Questions and Answers
Dream11 SDE-2 Interview Experiences
1 interview found
There were 2 medium level coding questions.
(2 Questions)
- Q1. LLD of current project
- Ans.
The LLD of the current project involves detailed design of the system architecture and components.
LLD includes detailed design of modules, classes, interfaces, and relationships between components.
It focuses on how the system will be implemented based on the requirements specified in the HLD.
LLD helps in understanding the flow of data and control within the system.
It also includes design patterns, algorithms, and data ...
- Q2. Deep understanding of kafka
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
Suraj Ahire
Coding round on hackerrank platform.
(2 Questions)
- Q1. Technical interview were not much easy. 4 questions were asked. 1) smallest sybarray with sum 0; 2) given two string qwerty and qrw how much time req to type qrw
- Q2. 3) tell me about your self
Interview Preparation Tips
Harshitha A
I applied via Campus Placement
Moderate to difficult questions were asked
6 coding questions from strings were asked
Selected
I applied via Referral and was interviewed before Sep 2022. There were 4 interview rounds.
(2 Questions)
- Q1. Coding , puzzles ,scenerio based , selenium , api automation, core java
- Q2. Data structure and algorithms
(1 Question)
- Q1. Coding , api automation , mucroservices concepts etc
Apptitute and techno managerial questions by director
Selected
I applied via Campus Placement and was interviewed in Aug 2024. There were 3 interview rounds.
Array , String, stack , queue - Basic Easy to medium level
(2 Questions)
- Q1. What happen when we visit Url
- Ans.
When we visit a URL, the browser sends a request to the server hosting the website, which then responds with the requested web page.
Browser sends a request to the server hosting the website
Server processes the request and responds with the requested web page
Web page is displayed in the browser for the user to interact with
- Q2. Difference B/w Http and https
- Ans.
HTTP is a protocol used for transferring data over the internet, while HTTPS is a secure version of HTTP that encrypts data.
HTTP stands for Hypertext Transfer Protocol, used for transmitting data over the internet.
HTTPS stands for Hypertext Transfer Protocol Secure, which adds a layer of security by encrypting data.
HTTP operates on port 80, while HTTPS operates on port 443.
HTTPS uses SSL/TLS certificates to establish a...
(2 Questions)
- Q1. Journey through school life till now
- Ans.
I have always been a dedicated student, excelling in academics and extracurricular activities.
Consistently achieved top grades in all subjects
Participated in various school competitions and won awards
Served as a class representative and organized events
Took part in sports teams and cultural activities
- Q2. Tell everything and also mention achievement you received
Interview Preparation Tips
Skills evaluated in this interview
I applied via Approached by Company and was interviewed in May 2022. There was 1 interview round.
(2 Questions)
- Q1. Java programming ques
- Q2. Selenium automation testing
Interview Preparation Tips
Coding round on hackerrank platform.
(2 Questions)
- Q1. Technical interview were not much easy. 4 questions were asked. 1) smallest sybarray with sum 0; 2) given two string qwerty and qrw how much time req to type qrw
- Q2. 3) tell me about your self
Interview Preparation Tips
I applied via campus placement at Vidyalankar Institute of Technology, Mumbai and was interviewed before Sep 2021. There were 3 interview rounds.
Do DSA easy-medium questions from leetcode
Most of the questions were array based
(2 Questions)
- Q1. Brief summary of project, technology used, challenges faced, how did u overcome that challanges
- Ans. I explained my project and problem faced, then interviewed asked how did u overcome this problem
- Q2. Leetcode medium difficulty level dsa questions
- Ans. 3 questions related to array and 1 was related to tree
(3 Questions)
- Q1. This was system design interview, they asked me how would u design e-commerce web app
- Ans. I explained what all tables will be there, foreign key primary key etc
- Q2. Then he asked me what is load balancer
- Ans. I explained what is load balancer and what is the use of it
- Q3. What is caching and why do we need to do caching
- Ans.
Caching is the process of storing frequently accessed data in a temporary storage to improve performance.
Caching reduces the need to fetch data from the original source, improving response time.
It helps in reducing network traffic and server load.
Caching can be done at various levels like browser caching, CDN caching, and server-side caching.
Examples of caching include browser caching of website assets, CDN caching of ...
Interview Preparation Tips
- DSA
- C++
Be confident during interview while answering
Skills evaluated in this interview
SDE (Software Development Engineer) Interview Questions & Answers
Carwale
Prasun Goyal
posted on 30 Sep 2015
Interview Questionnaire
14 Questions
- Q1. Make 24 using 8, 8, 3, 3 using + = / * ( ) .
- Q2. Find all permutations of a given string. (Not in lexicographic order)
- Ans.
Find all permutations of a given string.
Use recursion to swap each character with every other character in the string.
Repeat the process for each substring.
Add the permutation to an array.
- Q3. Given an array of size 98 and it has natural numbers from 1-100 but 2 numbers are missing. find them
- Ans.
Given an array of size 98 with natural numbers from 1-100 but 2 numbers are missing, find them.
Calculate the sum of all numbers from 1-100 using the formula n(n+1)/2
Calculate the sum of all numbers in the array
Subtract the sum of array from the sum of all numbers to get the sum of missing numbers
Find the missing numbers by iterating through the array and checking which numbers are not present
- Q4. Fnd if a binary tree is bst or not
- Ans.
Check if a binary tree is a binary search tree or not.
Traverse the tree in-order and check if the elements are in sorted order.
Check if the left child is less than the parent and the right child is greater than the parent.
Use recursion to check if all the subtrees are BSTs.
Maintain a range for each node and check if the node value is within that range.
- Q5. Detect and remove cycle in a linked list
- Ans.
Detect and remove cycle in a linked list
Use two pointers, one slow and one fast, to detect a cycle
Once a cycle is detected, move one pointer to the head and iterate both pointers until they meet again
Set the next node of the last node in the cycle to null to remove the cycle
- Q6. A string is given consisting of lowercase alphabets. Write a function which returns yes if the string has all the lowercase letters appearing in it at least once. O(N) time and without using extra space
- Ans.
Function to check if a string has all lowercase letters appearing at least once without extra space in O(N) time.
Create a boolean array of size 26 to keep track of the occurrence of each letter.
Iterate through the string and mark the corresponding index in the array as true.
Check if all the elements in the array are true and return yes if so.
Alternatively, use a bit vector to keep track of the occurrence of each letter
- Q7. Convert a given number to its hexadecimal form
- Ans.
Convert a number to its hexadecimal form
Use the built-in function to convert the number to hexadecimal
Alternatively, use the algorithm to convert the number to hexadecimal manually
Ensure to handle negative numbers appropriately
- Q8. Asked me how I rate myself in various subjects (CN , DBMS , OOPS ,OS). I told him that I am comfortable with OS and OOPS. Then he asked : Why multiple inheritance is not supported in JAVA. I told him tha...
- Q9. Explain priority scheduling (preemptive , non-preemptive). Explain a case when a low priority process will preempt a high priority process
- Ans.
Priority scheduling is a scheduling algorithm where processes are assigned priorities and executed based on their priority level.
Preemptive priority scheduling allows a higher priority process to interrupt a lower priority process that is currently running.
Non-preemptive priority scheduling allows a higher priority process to wait until the lower priority process finishes executing.
A low priority process can preempt a ...
- Q10. Brief discussion over one of my project
- Q11. Explain singleton class and write code for it.
- Ans.
Singleton class is a class that can only have one instance at a time.
Singleton pattern is used when we need to ensure that only one instance of a class is created and that instance can be accessed globally.
The constructor of a singleton class is always private to prevent direct instantiation.
A static method is used to access the singleton instance.
Example: public class Singleton { private static Singleton instance = ne...
- Q12. Develop tic-tac-toe game and write code using concepts of OOPS in CPP. (Initially told me to include artificial intelligence also but was later satisfied without it
- Ans.
Develop tic-tac-toe game using OOPS concepts in CPP.
Create a class for the game board
Create a class for the players
Create a class for the game logic
Use inheritance and polymorphism for game objects
Implement functions for checking win/lose/draw conditions
- Q13. Normal HR questions
- Q14. Long discussion over my projects
Interview Preparation Tips
Experience: Attempt at least 2 questions
Duration: 90 minutes
Total Questions: 4
Round: Technical Interview
Experience: The interviewer asked to write the full code for a couple of questions only.
Tips: Prepare puzzles.
Think loudly.
Ask for a hint if stuck.
Round: Technical Interview
Tips: Be honest with your interviewer. ;)
Skill Tips: Must be capable to solve puzzles as well as coding questions with good speed and accuracy.
Skills: Puzzle Solving Capability, Implementation of code using OOPS., Algorithm, Data Structures, Operating System Basics, Object Oriented Programming (OOP) Basics
College Name: NIT Bhopal
Motivation: Carwale currently has around 100-125 employees. So it's a good platform to learn new technology. The salary is also good.
Skills evaluated in this interview
SDE (Software Development Engineer) Interview Questions & Answers
Carwale
Shubham Jain
posted on 14 Oct 2015
Interview Preparation Tips
Experience: Online coding session :
Q1). Check for balanced parenthesis in an expression.
Q2). Count all possible paths from top left to bottom right of a M x N matrix.
(From each cell you can move only to right or down).
Q3) Count number of pairs with given sum in an array.
Q4). Print (N-K) values corresponding to min of each K-sized chunk in a given array of size N.
Tips: Lead in this round can benefit you in next rounds, so give your best shot.
Duration: 120 minutes minutes
Total Questions: 4
Round: Technical Interview
Experience: This was about a 30 min session.
He asked me very easy concept based questions.
Q1). Explain your project briefly.
Q2). Explain multiple inheritance
Q3). Why JAVA doesn’t support multiple inheritance.
Q4). Convert a hexadecimal to binary number and vice versa.
Q5). What are balanced BSTs?
Q6). Explain all possible rotations possible in a balanced BST.
Q7). Write INSERT function for a balanced BST.
Tips: Correct explaination matters,time doesn't.Take your time.
Round: Technical Interview
Experience: This was Technical + HR round :
Q1). Detailed discussion on my intern project.
Asked the shortcomings of the project and approaches to resolve them.
Q2). Discussion on minor project (Threaded download accelerator)
Asked about what all different approaches I could have followed in the project and why didn’t I chose them.
Q3). Favorite subject – I replied OS.
Asked few basic questions-
What are threads? How are they different from process? Explain with example.
I don’t remember the other os questions he asked about.
Q4). Implement Twitter.
It wasn’t easy to make him understand the approach. He was kind of satisfied with my approach at the end.
Q5). Discussion on other projects.
.
HR questions followed.
Tips: Be yourself.Don't pretend.
All the best :)
Skill Tips: Have conceptual knowledge of subjects, don't just mug up things.
Interviewers are smart enough to make it out anyway.
Skills: Logical Thinking, Operating System Basics, Algorithm, Database Management, Data Structures, C++, C
College Name: NIT Bhopal
Motivation: Flat hierarchy.
No cabin culture.
Working at startup is always better because you get to learn a lot of things.
Decent salary.
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Dream11 SDE-2 Interview Process
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