Apache Spark 1st Technical Round Live Interview for Experienced Candidates | Azure | SQL
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30 INTERVIEWS IN 30 DAYS- BIG DATA INTERVIEW SERIES
This mock interview series is launched as a community initiative under Data Engineers Club aimed at aiding the community's growth and development
Our highly experienced guest interviewer, Ankur Bhattacharya, / ankur-bhattacharya-100... shares invaluable insights and practical guidance drawn from his extensive expertise in the Big Data Domain.
Our expert guest interviewee, Dhruv Dubey, / dhruvadubey has an interesting approach to answering the interview questions on Spark, SQL, Azure Services & Big Data Project.
Link of Free SQL & Python series developed by me are given below -
SQL Playlist - ⢠SQL tutorial for every...
Python Playlist - ⢠Complete Python By Sum...
Don't miss out - Subscribe to the channel for more such informative interviews and unlock the secrets to success in this thriving field!
Social Media Links :
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Student Testimonials - trendytech.in/#testimonials
TIMESTAMPS : Questions Discussed
00:58 Introduction and project explanation
2:51 Reason for migrating from GCP to AWS?
3:57 Use cases solved in migration projects, challenges faced, and volume of data?
9:44 Explanation of cost savings and performance improvements mentioned in the resume?
10:40 Explain the reason for the out of memory issue that you faced.
12:00 How can you optimize data access performance for teams using ingested data during the day, given nightly ingestion in RDBMS?
20:56 How is the history stored in delta tables?
22:50 Features offered by delta tables?
23:35 Explain meaning and types of ACID properties.
25:35 Explanation of normalization and denormalization, types of normalization?
28:05 Preferred table type for aggregated reporting: wide or long?
29:21 Sql coding questions
37:10 Python coding questions
Music track: Retro by Chill Pulse
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Tags
#mockinterview #bigdata #career #dataengineering #data #datascience #dataanalysis #productbasedcompanies #interviewquestions #apachespark #google #interview #faang #companies #amazon #walmart #flipkart #microsoft #azure #databricks #jobs
Thank you for sharing thisâ€
Do you have providing live training or only record video training
How to calculate stages and task for 2 wide transformation and 1 action for 2gb of data
I got that no of jobs =no of actions plz help me
1 action = 1 job, every wide trans is = 1 stage and +1 default stage so for n wide trans there will be n+1 stages
Is it (64 core 16gb) or (16core 64gb)?
Thank you for the series.
The latter one
The answers are not upto the mark.
Why do you think so?