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DE Shaw Member Technology Interview Questions and Answers
7 Interview questions
Intersection of two lists in Java
Convert lists to sets and use retainAll() method
Iterate through one list and check if element is present in other list
Use Java 8 streams and filter() method
Calloc initializes memory with zero while malloc does not.
Calloc allocates memory and initializes it with zero
Malloc allocates memory but does not initialize it
Calloc is useful for allocating memory for arrays
Malloc is useful for allocating memory for single variables
Heap and stack are two memory allocation areas in a program.
Heap is used for dynamic memory allocation and is managed by the programmer.
Stack is used for static memory allocation and is managed by the system.
Heap memory is allocated using 'new' keyword in C++ and 'malloc' function in C.
Stack memory is allocated automatically for local variables and function calls.
Heap memory is not automatically deallocated and ca...
Compiler stages include preprocessing, compilation, assembly, and linking. Symbol table stores information about identifiers.
Preprocessing stage handles directives like #include and #define
Compilation stage translates source code to assembly language
Assembly stage converts assembly code to machine code
Linking stage combines object files and libraries into an executable
Symbol table stores information about identifi...
Banker's algorithm is a deadlock avoidance algorithm used in operating systems.
It is used to avoid deadlock in a multi-process system.
It works by checking if a request for resources will leave the system in a safe state.
It uses a matrix to represent the current state of the system and the maximum resources each process can request.
If the request can be granted without leaving the system in an unsafe state, it is g...
Page Replacement Algorithm is used to decide which page to remove from memory when new page is to be loaded.
It is used in operating systems to manage memory.
It is based on the principle of locality of reference.
Examples include FIFO, LRU, Optimal, etc.
Inorder traversal is a way of visiting each node in a binary tree in a specific order.
Start at the leftmost node and traverse the left subtree recursively.
Visit the current node.
Traverse the right subtree recursively.
Repeat until all nodes have been visited.
Inorder traversal is commonly used to print the nodes of a binary search tree in sorted order.
DE Shaw Member Technology Interview Experiences
1 interview found
Anonymous
Interview Questionnaire
17 Questions
- Q1. Deadlock avoidance algorithm(Banker's algorithm)
- Ans.
Banker's algorithm is a deadlock avoidance algorithm used in operating systems.
It is used to avoid deadlock in a multi-process system.
It works by checking if a request for resources will leave the system in a safe state.
It uses a matrix to represent the current state of the system and the maximum resources each process can request.
If the request can be granted without leaving the system in an unsafe state, it is grante...
- Q2. Page Replacement Algorithm
- Ans.
Page Replacement Algorithm is used to decide which page to remove from memory when new page is to be loaded.
It is used in operating systems to manage memory.
It is based on the principle of locality of reference.
Examples include FIFO, LRU, Optimal, etc.
- Q3. Discussion on Coding Ques of written test
- Q4. Some DBMS Ques and SQL Queries
- Q5. Compiler Stages to execute the c program, symbol table
- Ans.
Compiler stages include preprocessing, compilation, assembly, and linking. Symbol table stores information about identifiers.
Preprocessing stage handles directives like #include and #define
Compilation stage translates source code to assembly language
Assembly stage converts assembly code to machine code
Linking stage combines object files and libraries into an executable
Symbol table stores information about identifiers l...
- Q6. Iscussion on how a program executes(how it loads in main memory, os page hit and miss concepts, Compiler preprocessing loading and linking)
- Q7. Discussion on College Projects
- Q8. Intersection on two list in java
- Ans.
Intersection of two lists in Java
Convert lists to sets and use retainAll() method
Iterate through one list and check if element is present in other list
Use Java 8 streams and filter() method
- Q9. Why do you want to join DE Shaw?
- Ans.
I am excited about the challenging work culture and the opportunity to learn and grow at DE Shaw.
DE Shaw has a reputation for being a leader in the finance industry
I am impressed by the company's commitment to innovation and technology
I believe DE Shaw's collaborative work environment will allow me to learn from and work with some of the best minds in the industry
- Q10. Some Puzzles(water jug problem)
- Q11. Inorder traversal of tree
- Ans.
Inorder traversal is a way of visiting each node in a binary tree in a specific order.
Start at the leftmost node and traverse the left subtree recursively.
Visit the current node.
Traverse the right subtree recursively.
Repeat until all nodes have been visited.
Inorder traversal is commonly used to print the nodes of a binary search tree in sorted order.
- Q12. Some questions on oop's concepts
- Q13. Join in DBMS
- Q14. Static and Dynamic loading
- Q15. Difference between Calloc and malloc
- Ans.
Calloc initializes memory with zero while malloc does not.
Calloc allocates memory and initializes it with zero
Malloc allocates memory but does not initialize it
Calloc is useful for allocating memory for arrays
Malloc is useful for allocating memory for single variables
- Q16. Allocation of memory on Heap and stack
- Ans.
Heap and stack are two memory allocation areas in a program.
Heap is used for dynamic memory allocation and is managed by the programmer.
Stack is used for static memory allocation and is managed by the system.
Heap memory is allocated using 'new' keyword in C++ and 'malloc' function in C.
Stack memory is allocated automatically for local variables and function calls.
Heap memory is not automatically deallocated and can cau...
- Q17. Compile time and Run time polymorphism
Interview Preparation Tips
Experience: 20 Questions (20 mins)
Duration: 20 minutes
Total Questions: 20
Round: Test
Experience: 20 Questions (20 mins) : C, C++, JAVA , DBMS and OS
Duration: 20 minutes
Total Questions: 20
Round: Test
Experience: Coding Test - 1 Question(20 mins) : careercup.com will help you better than me.:)
Duration: 20 minutes
Total Questions: 1
College Name: NA
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I applied via Company Website and was interviewed before Jun 2021. There were 2 interview rounds.
(1 Question)
- Q1. Machine learning and Java programming questions
Interview Preparation Tips
mahesh mahe
I appeared for an interview in Jan 2021.
Interview Questionnaire
1 Question
- Q1. One Program with c#
- Ans.
A C# program to demonstrate basic concepts like variables, loops, and conditionals.
Use 'int' for integers: int number = 5;
Implement loops: for (int i = 0; i < 5; i++) { Console.WriteLine(i); }
Use conditionals: if (number > 0) { Console.WriteLine('Positive'); }
Interview Preparation Tips
Skills evaluated in this interview
Interview Preparation Tips
Experience: If your have CGPA >7 and AIEEE rank is good then you will be shortlisted .
Round: Test
Experience: Test was similar to CAT there were 3 sections qunat, logical reasoning and verbal ...question were easy ...test was hosted at cocubes .
Tips: Don't try to open other tab during test because that will be recorded.
Duration: don't remember minute
Round: HR Interview
Experience: Interviewer was very straight forward, he ask many question and puzzles. One puzzle he asked was ... You have 2 rats and 4 glass. ..in each glass you have some liquid which is taste less, smell less cl,colorless ...but one glass contains poision... We are allowed to use rats only once and at the same time ...identity the poisened glass.
He also asked candel and bridge puzzle and sone question about me like why do you want to join our conpany, tell m le something about yourself etc
Round: Technical Interview
Experience: Interviewer asked 3 questions
1) you have 3 glasses each contain 1 balls of different color .. You have to identify which galss has which color ball .
I answered several time and he make changes every time. ..
1 coding question and 1sql query. I answered all the questions correctly
College Name: NIT Delhi
Interview Preparation Tips
Experience: An online test covering Quant, logical reasoning, DI and coding lasting for 1-1.30 hr. It also included essays on yourself
Round: Interview
Experience: Skype Interview of around 30-45 minInterview:Interview will consists of HR questions, project details and case studies.HR will be a standard affair and they will quiz you on BTP and internshipsOne of the last year case study was on ‟Amount of petrol used by Autos in Chennai‟.Other one was „calculate average salary of people in a room, who are not supposed tospeak about the salary‟.
Tips: Solve puzzles, quant and logical reasoning questions
College Name: IIT Madras
Interview Questionnaire
4 Questions
- Q1. What was your GRE score?
- Ans.
I did not take the GRE exam.
I did not apply for a program that required GRE scores.
My focus was on gaining practical experience through internships and projects.
I have excelled in my academic and professional pursuits without a GRE score.
- Q2. How was CAT?
- Ans.
CAT was challenging but I managed to do well.
CAT was a difficult exam but I prepared well for it.
I had to manage my time effectively during the exam.
I am confident that I did well in the exam.
The exam tested my analytical and problem-solving skills.
Overall, I am satisfied with my performance in CAT.
- Q3. Convince me that you won't go for higher studies?
- Ans.
I am committed to gaining practical experience and contributing to the growth of the company.
I believe that practical experience is just as valuable as academic knowledge
I am excited about the opportunity to contribute to the growth of the company
I am committed to continuously learning and improving my skills through on-the-job training and professional development programs
- Q4. Project-related questions
Interview Preparation Tips
Experience: CPI cut-off was 8.0 and I easily cleared as I had a CPI of 9.4
Round: Test
Experience: Questions included:
1. Basic programming questions (to find output, basic SQL, java, C)
2. Basic stats questions (mean, median, mode)
3. Two essay questions (one was 'Why Axtria?').
Round: Other Interview
Experience: This was a skype interview conducted by IITK alum. By this time, I had enough experience of giving interviews so HR was well prepared. I didn't took GRE, so I said that. I didn't opted for CAT either as I didn't wanted to go for MBA. He said we are convinced with your quantitative and writing skills through test, just convince me that you won't go for higher studies-I justified, since I didn’t enabled the video feature so couldn’t know whether he was convinced or not. projects. My Interview was about to end, but I asked him some question and he started describing the work at Axtria and finally asked me to solve a case study.
General Tips: 1. Prepare HR well and before the actual Interview, give at least 2-3 dummy interviews.
2. Go through company website carefully; and prepare 2-3 good questions to ask in the end.
College Name: IIT KANPUR
Interview Questionnaire
4 Questions
- Q1. What is your area of interest?
- Q2. What are the other companies you have applied for and how many rounds did you clear?
- Ans.
I have applied to a few companies, but I prefer not to disclose the names. I have cleared multiple rounds in each of them.
I have applied to a few companies, but I prefer not to disclose the names.
I have cleared multiple rounds in each of them.
I believe that each company has its own unique hiring process and requirements.
I am confident in my abilities and qualifications, and I am open to exploring opportunities with any...
- Q3. Explain transportation problem.
- Ans.
Transportation problem is a linear programming problem that deals with minimizing the cost of transporting goods from sources to destinations.
It involves determining the optimal way to transport goods from sources to destinations
It considers factors such as cost, capacity, and demand
It can be solved using various methods such as the North-West Corner Method, Least Cost Method, and Vogel's Approximation Method
Example: A...
- Q4. How will you solve a trans-shipment problem in excel solver software?
- Ans.
Trans-shipment problem can be solved in Excel Solver by setting up a linear programming model.
Define decision variables for the amount of goods to be shipped between each pair of locations.
Set up constraints to ensure that the supply and demand at each location are met.
Add constraints to limit the amount of goods that can be shipped through intermediate locations.
Define the objective function to minimize the total cost...
Interview Preparation Tips
Experience: It was an “open to all branches” company. Around 70 students were shortlisted based on resume. Shortlisting was mainly on CGPA basis and on an average 5 top students were shortlisted from each branch.
Round: Test
Experience: The written test was on logical reasoning, verbal ability and quantitative aptitude. The test comprised of 2 sections. 1st section comprised of 3 HR questions:
Why do you want to join this company?
Tell us about yourself.
Describe a situation where you displayed leadership skills.
These 3 questions were to be typed in 150-200 words each in total of 20 min. 2nd section started immediately after this. 25 minutes, 35 multiple choice questions consisting of questions from various sections including 10 coding based questions.
Duration: 45 minutes
Total Questions: 38
Round: HR Interview
Experience: Interview was through a video call on Skype. The interview started with the basic HR question and then the interviewer asked about my area of interest. He asked 2 questions from that field and then asked one guesstimate question
The last question was related to what do I understand about data analysis.
Other candidates were asked some puzzles and several other HR questions as well.
My area of interest was Operations Research. So he asked me some technical questions as well.
College Name: IIT ROORKEE
Akash Rai
Interview Preparation Tips
Experience: they shortlisted 150 people based on the aieee rank and cgpa .
Round: Test
Experience: the test was on cocubes.com
Tips: do attempt each section to clear cutoff
College Name: MANIT,bhopal
Varun Thopucherla
Interview Questionnaire
10 Questions
- Q1. Tell about yourself?
- Ans.
I am a software engineer with experience in developing web applications and mobile apps.
Proficient in programming languages such as Java, Python, and JavaScript
Experience in developing RESTful APIs and integrating third-party APIs
Familiarity with front-end frameworks such as React and Angular
Strong understanding of database management systems such as MySQL and MongoDB
Passionate about learning new technologies and keepi...
- Q2. Why Software industry? why not core?
- Ans.
Software industry offers endless opportunities for innovation and growth.
Software industry is constantly evolving and offers opportunities to work on cutting-edge technologies.
It provides a platform to solve complex problems and create innovative solutions.
The demand for software engineers is high and the industry offers competitive salaries.
Core industries may have limited scope for growth and innovation compared to s...
- Q3. Write a program to print the given string in reverse
- Ans.
Program to print a given string in reverse
Create a character array of the given string
Loop through the array from end to start and print each character
- Q4. Some questions about computer networks and Digital electronics
- Q5. What is Mux? what are its real life applications?
- Ans.
Mux is a device that selects one of several input signals and forwards the selected input into a single output line.
Mux stands for Multiplexer.
It is used in digital circuits to select one of several input signals and forward the selected input into a single output line.
It is used in communication systems to combine multiple signals into a single channel for transmission.
It is used in video and audio systems to switch b...
- Q6. What is DeMux? what are its real life applications?
- Ans.
DeMux is short for Demultiplexer. It is a digital circuit that takes one input and directs it to multiple outputs.
DeMux is used in digital communication systems to separate signals that have been combined for transmission.
It is also used in computer memory systems to select a specific memory location.
DeMux is used in video and audio systems to separate different channels of information.
It is used in automation systems ...
- Q7. Difference between decoder and Demux
- Ans.
Decoder converts encoded data into a readable format while Demux separates a single input into multiple outputs.
Decoder is used to decode encoded data such as binary data into a readable format.
Demux is used to separate a single input into multiple outputs based on the control signals.
Decoder is a combinational circuit while Demux is a sequential circuit.
Decoder is used in applications such as remote controls, computer...
- Q8. Why amadeus labs?
- Ans.
Amadeus Labs is a leading technology company in the travel industry.
Amadeus Labs provides opportunities to work on cutting-edge technologies.
The company has a strong focus on innovation and research.
Amadeus Labs has a global presence and offers a diverse and inclusive work environment.
Working at Amadeus Labs provides the opportunity to make a real impact on the travel industry.
The company values work-life balance and o...
- Q9. Are you comfortable in working for Testing?
- Ans.
Yes, I am comfortable working for Testing.
I have experience in testing and understand its importance in software development.
I am willing to learn new testing techniques and tools.
I am comfortable working with testing teams and collaborating with them to ensure quality software.
I understand the importance of testing in ensuring customer satisfaction and reducing costs.
Examples: I have experience in manual and automated...
- Q10. Why do you consider yourself suitable for developer role?
- Ans.
I have the necessary skills and experience to excel in the developer role.
I have a degree in computer science and have completed multiple coding projects.
I am proficient in programming languages such as Java, Python, and C++.
I have experience working with databases and web development frameworks.
I am a quick learner and enjoy solving complex problems.
I am a team player and have collaborated with other developers on var...
Interview Preparation Tips
Experience: The test was conducted online. All the questions were of medium standard and easy to crack if we have patience for thinking.
English comprehension level is slightly below the standard of CAT. Those who have the habit of reading English news paper can easily crack the test.
Data analysis questions were also of medium standard. Those who have knowledge about graphs, bar & pie charts can easily crack the exam.
Tips: Practice Aptitude questions from R S Agarwaal book and CAT material.
Round: Technical Interview
Experience: Over all interview experience is cool. Interviewers never grilled on anything. In many cases they have helped me to arrive at answers.
Tips: Read C++ and Oops concepts from E Balaguruswamy text book.
For Data structures and algorithms read 'Data structures' by Yeshwant kanethkar.
Minimum knowledge about all the courses of your department will be an added advantage. This will help you to depict you are sincere in your studies and don't have any personal constraints in learning a new thing.
General Tips: Just be confident and believe in yourself. You will get through.
Skills: Programming skill in C++
College Name: NIT Warangal
Motivation: No special motivation. It is a rapidly growing company offering good package.
Skills evaluated in this interview
I appeared for an interview in Aug 2016.
Interview Preparation Tips
Experience: The questions were tricky. We were given a paragraph and after reading it, a statement was given to us and we were asked to say if it is true, false or cannot say. The structure of the statement put us into a a tough place. So practice of such kind of questions is necessary.
For data interpretation questions a good hand on basic statistical mathematics is needed. One has to be quick because of the time crunch. The questions were approachable
Round: Technical Interview
Experience: In this round my resume was scanned and I was required to speak about myself, my projects and explain certain areas of my resume. The interviewer picked up one of my basic project, surprisingly, and asked me to elaborate on it. He asked me how I can improve the project. And I had to write a code to make that change. Basically, one should have a good idea about the projects they've done/ mentioned in their resume. And know it in detail.
Few questions on data structures. Prepare well for coding type questions and data structures.
Round: Puzzle Interview
Experience: The interviewer asked me two puzzles. They were moderate level. And also luckily he was helpful whenever I got stuck.
Round: HR Interview
Experience: HR round was good. Basic questions like " tell me more about yourself", brief information about my past history, college life, extra curricular activities. In the end she asked me, "should we hire you?" And I lightly answered " why not!" So it was a good interview overall.
Skills: Coding Skills, Team Working Ability, Project management
College Name: Visvesvaraya National Institute Of Technology
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