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Mphasis Senior Data Engineer Interview Questions and Answers
Mphasis Senior Data Engineer Interview Experiences
1 interview found
Anonymous
(3 Questions)
- Q1. ReduceByKey vs groupByKey
- Ans.
reduceByKey is more efficient than groupByKey for aggregating data in Spark due to reduced shuffling.
reduceByKey combines values for each key in each partition before shuffling data
groupByKey shuffles all data to a single partition before combining values for each key
reduceByKey is preferred for large datasets to minimize data movement and improve performance
- Q2. Word count in scala
- Ans.
Scala provides a simple way to count words in a string using built-in functions.
Use the split function to split the string into an array of words
Use the length function to get the count of words in the array
- Q3. Second highest salary SQL
- Ans.
Use SQL query with ORDER BY and LIMIT to find the second highest salary.
Use ORDER BY clause to sort salaries in descending order
Use LIMIT 1,1 to skip the first highest salary and get the second highest salary
Skills evaluated in this interview
Senior Data Engineer Jobs at Mphasis
Interview questions from similar companies
I applied via Campus Placement and was interviewed before Aug 2021. There were 3 interview rounds.
The first round was an aptitude test with questions ranging from basic mathematical concepts to logical/analytical questions. English was also included in the test. The difficulty was medium and I was able to solve 70-80% of the questions.
Two coding questions were the part of the test. I was supposed to solve and pass all the test cases for both the questions. The coding questions tested my knowledge in the field of arrays, loops and pointers. I was able to solve one and partially solve another.
(1 Question)
- Q1. The interview was a mixture of both HR as well as Technical. I was asked decent questions and tested my knowledge in the fundamentals of programming.
Interview Preparation Tips
- Python
- Java
- Full Stack
Cheers :)
Selected
I applied via Naukri.com and was interviewed before Mar 2022. There were 3 interview rounds.
(1 Question)
- Q1. Salary expectation current salary notice period
(1 Question)
- Q1. Current salary notice period expected salary
- Ans.
The question asks for information about current salary, notice period, and expected salary.
Provide the current salary, notice period, and expected salary.
If you don't have the information, mention that you don't have the data.
Format the response in JSON.
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Sep 2021. There were 4 interview rounds.
Prepare normal for aptitude - maths, quant, analytic
My GD topic was Is internet good for students or not
I didn't attempt this as I was noob back in third year Engg
(1 Question)
- Q1. Basic questions can you relocate, tell me about ur GD and composition
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Oct 2021. There were 4 interview rounds.
Aptitude test has aptitude, logical and 2 coding questions
(1 Question)
- Q1. Asked about the basics of c, data structures, aptitude questions and questions related to your major
(1 Question)
- Q1. General hr discussion
Interview Preparation Tips
I applied via AmbitionBox and was interviewed before Jul 2021. There were 3 interview rounds.
Generally the aptitude maintain quick calculations and time reduce.
Coding built over technical skills
(1 Question)
- Q1. General knowledge and some technical questions been asked
Interview Preparation Tips
- Python
I applied via Naukri.com and was interviewed before Jun 2019. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Core java very basic
- Q2. Collections, string, object class, == and equals, threads
Interview Preparation Tips
I appeared for an interview before Apr 2020.
Interview Questionnaire
3 Questions
- Q1. Data structure algorithms and basics of programming languages
- Q2. Opps concept
- Q3. Ask to write 2 codes they provide problem statements for that
harsha
Interview Questionnaire
2 Questions
- Q1. What is precompilaion unit?
- Ans.
Precompilation unit is a compiled code that can be reused by multiple source files.
Precompilation unit is created by the compiler from the source code.
It contains the compiled code of header files and other dependencies.
It can be reused by multiple source files, reducing compilation time.
It is also known as precompiled header or PCH.
Example: stdafx.h in Visual Studio is a precompiled header file.
- Q2. About ur future,ur short term goal,why this company
Interview Preparation Tips
College Name: IIT Kharagpur
Software Engineer Interview Questions & Answers
Persistent Systems
Surendra Verma
posted on 15 Feb 2016
Interview Questionnaire
3 Questions
- Q1. First 50 Prime Number
- Ans.
The first 50 prime numbers are...
Start with 2, the first prime number
Check each odd number greater than 2
Use trial division to check if a number is prime
Stop when you have found 50 prime numbers
- Q2. How to sort the file in the range (hint provided)
- Ans.
Sorting a file within a range
Use a sorting algorithm like quicksort or mergesort
Read the file and store the data in an array or list
Sort the array or list within the given range
Write the sorted data back to the file
- Q3. Tell me about yourself
- Ans.
I am a passionate software engineer with experience in developing web applications using various technologies.
Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular
Proficient in backend development with Node.js, Express, and MongoDB
Familiar with version control systems like Git and project management tools like Jira
Interview Preparation Tips
Experience: Shortlist cut was 0.0 cgpa
Tips: Need to mention Programming skill in any one of three language C , C++ ,Java
Round: Test
Experience: Test was Average, Many question were from INDIABIX.COM , computer network, operating system ,data structure, c , c++ language
Tips: Understand Data Structure and Algorithm deeply, At least read about computer networks, operating system , DBMS 3-4 times for basic good understand, refer various site
Duration: 180 minutes
Round: Test
Experience: Two question were given , we have to write the code on A4 size sheet
Tips: Deep understanding of STACK AND QUEUE
Duration: 60 minutes
Round: Technical Interview
Experience: Previous Test (2 Questions on A4 size sheet) were discussed and is there any improvement that can be done, discussed each and every step.
Tips: Comments is important using programming
present with demo example (various cases)
Round: HR Interview
Experience: Be calm and show your interest in the company,
ask question about company, what are activity other than techincal technical stuff
Tips: Smile , if possible talk in Hindi - English,Try to Make the interview in discussion
General Tips: Practice Daily , Understand Each and Every Step in Detail , Try to code in A4 size paper then computer
Skill Tips: Read Good Books , Practice Daily
Skills: Algorithms And Data Structures
College Name: IIT Kharagpur
Skills evaluated in this interview
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Mphasis Senior Data Engineer Interview Process
based on 1 interview
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