Bruker Interview Questions and Answers

Q1. Data base upgrades, migration, cost optimisation , moderation, data security, backups and restore, DR
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Q1. Datbase related
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Q1. Basic questions
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It was a combination of mcq and coding questions
mcq: aptitude + c++ + sql question, nothing really tough
Coding question: 3 leetcode question, medium level, of stack, binary search and graph traversal

Q1. Question regarding project
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Q2. SQL basic to moderate question
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Q3. C++ coding question on strings recursion callback in c, oops medium level question, finding error in code
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Q4. Puzzles Q1-> cake cutting ( 3 cuts, 8 slices) Q2 ->9 bottles, 8 same weight bottles, 1 heavy, 2 tries using a balance
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Q5. OS question difference bw multi-processing and multi-programming how would u reduce number of page faults. etc
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Q1. Once again project explanation
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Q2. Basic to high level oops question:( C++) i was asked to write some class and in that these questions were asked 1: different types of access modifiers, but the question was asked indirectly. like why did...read more
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Q3. HR questions, since it was a semi technical cum hr round,
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Q1. Variation of sort 0,1,2
Ans. 
The question is asking for a variation of sorting an array containing 0s, 1s, and 2s.
• Use a three-way partitioning algorithm to sort the array in a single pass.

• Keep track of three pointers - low, mid, and high to partition the array.

• Example: Input array = [0, 1, 2, 1, 0], Output array = [0, 0, 1, 1, 2]
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Q2. Longest palindromic substring
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A palindromic substring is a string that reads the same forwards and backwards.
• Use dynamic programming to find the longest palindromic substring.

• Start by considering each character as the center of a potential palindrome.

• Expand outwards from each center to check for palindromic substrings.

• Keep track of the longest palindrome found so far.

• Example: Input 'babad', Output 'bab' or 'aba'.
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Q3. Core qns (DBMS+OS+OOPS+CN)+ high level of project
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Q1. Deep dive discussion on projects(No DSA qns)
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Q2. Asking why you used only that techstack on project ,what are your difficulties on project and who advised you to use that techstack
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Q1. Minimum Knight Moves (LC Medium)
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Q2. OS, CN, DB concepts like multithreading, semaphore, tcp vs udp, transaction and ACId properties. Java concepts like stack vs heap(memory), error vs exception. Any 1 Project discussion for 10 mins
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Q1. Sales & Onboarding Related
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Q2. Business & E-commerce Business
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Q1. Tell me about yourself
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Q2. Which skills and tools have you worked on
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Q1. Tell us about yourself and your recent experience
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Q2. Explain a project end to end
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I led a project to implement a new customer relationship management system for a large retail company.
• Conducted initial research to identify the best CRM system for the company's needs

• Collaborated with IT team to customize the system to fit the company's requirements

• Developed a training program for employees to ensure successful adoption of the new system

• Managed the implementation process and monitored progress to ensu...read more
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Q3. Write sql queries
Ans. 
I have experience writing SQL queries for data analysis and reporting purposes.
• Use SELECT statement to retrieve data from database tables

• Use WHERE clause to filter data based on specific conditions

• Use JOIN clause to combine data from multiple tables

• Use GROUP BY clause to group data based on specific columns

• Use ORDER BY clause to sort data in ascending or descending order
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Q4. Experimentation
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SQL and Python coding test

Q1. Bagging vs Boosting
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Q2. Overfitting and Underfitting in GBDT
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Q1. Questions on Recent project
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Q2. Deep Learning vs classical ML
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