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DE Shaw QA Engineer Interview Questions and Answers
DE Shaw QA Engineer Interview Experiences
1 interview found
Anonymous
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Interview Preparation Tips
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Sachin Aglave
Interview Questionnaire
4 Questions
- Q1. Tell me about your internship, B.Tech project(BTP), CV
- Q2. Implement LRU cache.
- Ans.
Implement LRU cache
LRU stands for Least Recently Used
It is a cache eviction policy that removes the least recently used item
It can be implemented using a doubly linked list and a hash map
Newly accessed items are moved to the front of the list
When the cache is full, the item at the end of the list is removed
- Q3. What is virtual memory? Will we need virtual memory even if we have infinite amount of RAM?
- Ans.
Virtual memory is a memory management technique that allows a computer to use more memory than it physically has.
Virtual memory uses a combination of RAM and hard disk space to store data.
It allows programs to use more memory than is physically available.
If a program tries to access memory that is not currently in RAM, it will be swapped in from the hard disk.
Even if we had infinite RAM, virtual memory would still be n...
- Q4. Given an array, Find out maximum length of subarray where max of subarray <= 2*min of subarray
- Ans.
Find maximum length of subarray where max <= 2*min.
Iterate through array and keep track of max and min values.
Update max length when condition is met.
Time complexity: O(n)
Interview Preparation Tips
Experience: No CPI cut off and It was open for all departments.
Round: Test
Experience: In muliple choice question Mostly questions were base on maths, probability, c programs, algorithms, Systems. If you are prepared then Questions were not that much tough. Keep strong concepts of Operating systems. For subjective part, Some problems were from maths proofs, some were from probability, some were from algo. We had to write algorithms. etc
Duration: 180 minutes
Round: Problem Statement
Experience: Questions were doable.
Round: Interview
Experience: Everyone was cool, They made me feel comfortable and then started asking questions.
Tips: If you have good rank in online coding competition, do mention it in CV.Most of the students think that GS asks only probability-puzzles. They did not asked me any question on probability or puzzle. Everything they asked was based on Algorithms problems and Operating system. I think it depends on team for which they are hiring. Most important point is don’t lose hope because you have low CPI or you are not good at something. Keep Operating systems fundamental concepts strong.
General Tips: We should balance in Placement and Compititive online coding. Keep in mind Placements and Compititive online coding are some what different things. Keep on improving our mistakes on daily basis. I would strongly suggest you to do introspection daily it will help you to find out your weaknesses and strong points, where we are going wrong etc. There are two thing on which we shoud focus.1. Preparation (I have told everything requered for preparation).2. Get output of all hard work. How to keep our mind on 100% output while the actual exam(placement).For this, I used to go for physical exercise daily in the morning and medidate for 20-30 minutes. Along with exercise i used to do Sudarshan Kriya(Art of Living). Meditation has lot of power :).
Skill Tips: Keep your OS fundamentals strong. To improve codgin skills practice as many problems as you can. Regularly participate in online coding competitions it really helps to solve or approach any new problem. Many time instead of correct answer the approach to solve the problems is very important. How you think, How you approach the problem is checked in interview.
Skills: Coding Skills, Operating Systems , Problem solving skills
College Name: IIT Guwahati
Motivation: The name GS itself enogh for motivation.
Skills evaluated in this interview
I appeared for an interview before Mar 2021.
(3 Questions)
Round duration - 60 minutes
Round difficulty - Medium
Technical round with questions on DSA and OS.
- Q1.
LRU Cache Design Problem Statement
Design and implement a data structure for a Least Recently Used (LRU) cache that supports the following operations:
get(key)- Retrieve the value associated with the...
- Ans.
Design and implement a Least Recently Used (LRU) cache data structure that supports get and put operations with a specified capacity.
Implement a doubly linked list to keep track of the order of keys based on their usage.
Use a hashmap to store key-value pairs for quick access and updates.
When a key is accessed or updated, move it to the front of the linked list to mark it as the most recently used.
When the cache reaches...
- Q2.
Maximum of All Subarrays of Size K
Given an array of non-negative integers and an integer K representing the length of a subarray, your task is to determine the maximum elements for each subarray of size ...
- Ans.
Find the maximum elements for each subarray of size K in a given array.
Iterate through the array and maintain a deque to store the indices of elements in decreasing order.
Pop elements from the deque that are out of the current window.
Keep track of the maximum element in each subarray of size K.
Return the maximum elements for each subarray.
- Q3. What is virtual memory?
- Ans.
Virtual memory is a memory management technique that allows a computer to compensate for physical memory shortages by temporarily transferring data from RAM to disk storage.
Virtual memory allows programs to use more memory than is physically available on the system.
It helps in multitasking by allowing multiple programs to run simultaneously without running out of memory.
Virtual memory uses a combination of RAM and disk...
Interview Preparation Tips
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.
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.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed before Oct 2019. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Normal php questions like overriding,overloading,traits,interface,abstarct class nothing else.. It was online but in 2016.
- Q2. Go though those topic as they are very important and asked in most companies.
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. Oops programming,SQL server Database
I applied via Recruitment Consultant and was interviewed before Jun 2018. There was 1 interview round.
Interview Questionnaire
4 Questions
- Q1. What do you know about GS?
- Ans.
GS is a global investment banking firm known for its financial services and expertise in mergers and acquisitions.
GS stands for Goldman Sachs, a multinational investment bank and financial services company.
It is one of the largest investment banking enterprises in the world.
GS is known for its involvement in mergers and acquisitions, asset management, and other financial services.
The firm was founded in 1869 and is hea
- Q2. What bores you at work and how do you cope with it?
- Ans.
Monotonous tasks bore me at work, but I cope by taking short breaks and switching up my routine.
Monotonous tasks like data entry or filing paperwork can be boring
I cope by taking short breaks to refresh my mind
Switching up my routine by tackling different tasks or projects helps me stay engaged
- Q3. Describe your current job role and what different can you bring to GS?
- Ans.
I currently work as a financial analyst, analyzing market trends and creating financial reports. I can bring strong analytical skills and attention to detail to GS.
Experience in analyzing market trends
Creating detailed financial reports
Strong analytical skills
Attention to detail
Ability to work under pressure
- Q4. How did you handle an internal conflict?
- Ans.
I addressed an internal conflict by actively listening to all parties involved, seeking common ground, and finding a mutually beneficial solution.
Actively listened to all parties involved to understand their perspectives
Sought common ground and areas of agreement to build consensus
Worked towards finding a mutually beneficial solution for all parties
Communicated openly and transparently throughout the conflict resolutio
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed before Feb 2020. There were 5 interview rounds.
Interview Questionnaire
1 Question
- Q1. I was interviewed for a Business intelligence role, the questions asked were based tableau best practices, investment banking concepts, basic and advance Sql - questions
Interview Preparation Tips
I applied via LinkedIn and was interviewed in Mar 2021. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. All were Ds and algo questions?
Interview Preparation Tips
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