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Fractal Analytics Senior Data Engineer Interview Questions and Answers
Fractal Analytics Senior Data Engineer Interview Experiences
3 interviews found
Selected
I applied via Referral and was interviewed before May 2023. There were 2 interview rounds.
(3 Questions)
- Q1. Interviews question about adf adls gen2 ,databricks and experience
- Ans. One might ask you on how can one configure these
- Q2. Transformations in databricks
- Ans.
Transformations in Databricks involve manipulating data using functions like map, filter, reduce, etc.
Transformations are operations that are applied to RDDs in Databricks
Common transformations include map, filter, reduce, flatMap, etc.
Transformations are lazy evaluated and create a new RDD
Example: map transformation to convert each element in an RDD to uppercase
- Q3. Concepts in spark
- Ans.
Spark is a distributed computing framework for processing big data.
Spark is built around the concept of Resilient Distributed Datasets (RDDs)
It supports various programming languages like Scala, Java, Python, and R
Spark provides high-level APIs like DataFrames and Datasets for structured data processing
It includes libraries for SQL, streaming, machine learning, and graph processing
Spark can run on various cluster manag
(3 Questions)
- Q1. In depth discussion on projects
- Q2. Performance enhancemnets in pyspark
- Ans.
Performance enhancements in PySpark involve optimizing code, tuning configurations, and utilizing efficient data structures.
Use partitioning to distribute data evenly across nodes
Cache intermediate results to avoid recomputation
Optimize joins by broadcasting smaller tables
Use efficient data formats like Parquet or ORC
Tune Spark configurations for memory and parallelism
- Q3. Data handling and data quality
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed before Feb 2023. There were 3 interview rounds.
It was a hackerearth test ranging from simple to intermediate
(2 Questions)
- Q1. Basic on Pyspark, Hive
- Q2. Basic on SQL related
(1 Question)
- Q1. It was tougher round with coding questions
Interview Preparation Tips
- Spark
- Hadoop
- Hive
- SQL
I applied via Naukri.com and was interviewed before Nov 2021. There were 4 interview rounds.
Language coding test which might be very specific to the proficient for data technologies
(1 Question)
- Q1. More of basic understanding on the concepts of processing of data and related technologies
(1 Question)
- Q1. In terms of architecture understanding and designing perspective
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
Senior Data Engineer Interview Questions & Answers
Deutsche Telekom Digital Labs
Anonymous
posted on 8 Sep 2022
I applied via Recruitment Consulltant and was interviewed in Mar 2022. There were 3 interview rounds.
(1 Question)
- Q1. SQL, spark, hadoop, Linux,python
(1 Question)
- Q1. System design, real time data ingestion architecture and processing
(1 Question)
- Q1. Strength and weakness
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Sep 2024. There was 1 interview round.
(2 Questions)
- Q1. Problems related to Binary Search
- Q2. Problem statement on BST
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Aug 2024. There were 3 interview rounds.
First round was aptitude, communication test and a pseudo code question and all are elimination rounds if you passes all the rounds you will get an interview date....
(2 Questions)
- Q1. Good Knowledge on dbms, sql
- Q2. Python basic questions
(1 Question)
- Q1. Very liberal questions about yourself, relocation, etc..
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed in Mar 2024. There were 5 interview rounds.
Starts with an online assessment test on HackerRank. Expect a LeetCode Medium question most of the time, mostly created by HackerRank.
(2 Questions)
- Q1. LC medium related to dynamic programming.
- Q2. LC easy related to heaps.
(1 Question)
- Q1. LC medium-hard, don't remember the category.
(1 Question)
- Q1. This was a design round. You can expect to be asked to design the DB schema and API endpoints for a well-known use case. Interviewer was super helpful and receptive throughout. While getting to an agreeabl...
(1 Question)
- Q1. Hiring manager round. Mostly discussions about your profile, discussion on past projects from your resume. You can do well in this round if you know your basics and can explain your projects to some depth....
Interview Preparation Tips
Software Engineer Interview Questions & Answers
Hughes Systique Corporation
Anonymous
posted on 11 Nov 2024
(1 Question)
- Q1. Reverse a linked list
- Ans.
Reverse a linked list by changing the direction of pointers
Start with three pointers: current, previous, and next
Iterate through the linked list, updating pointers to reverse the direction
Update the head of the linked list to be the last node visited
Skills evaluated in this interview
Shagun Goyal
Written test was in python where we have output based questions
(1 Question)
- Q1. Move zeros to the end of the array
- Ans.
Move all zeros in an array of strings to the end.
Iterate through the array and move all zeros to the end by swapping with non-zero elements.
Maintain a pointer to keep track of the position to swap with zeros.
Example: Input: ['a', 'b', 'c', '0', 'd', '0'], Output: ['a', 'b', 'c', 'd', '0', '0']
Skills evaluated in this interview
Selected
I applied via Job Portal and was interviewed in Sep 2024. There were 2 interview rounds.
DSA, SUM Practice, DSA SUM
DSA Sum Practice DSA Sum
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Fractal Analytics Senior Data Engineer Interview Process
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