Dream11 SDE (Software Development Engineer) Interview Questions and Answers

Round: Test
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.

Interview preparation tips for other job seekers - Interview went well but didn’t know what went wrong