Big Data Mock Interview | DSA | APACHE SPARK | PYTHON | DATABRICKS
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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, Prakhar Bansal, / praxbanx shares invaluable insights and practical guidance drawn from his extensive expertise in the Big Data Domain.
Our expert guest interviewee, Mounika Bairi, www.linkedin.com/in/mounika-b... has an interesting approach to answering the interview questions on Apache Spark, SQL and Azure Cloud Services.
Link of Free SQL & Python series developed by me are given below -
SQL Playlist - • SQL tutorial for every...
Python Playlist - • Complete Python By Sum...
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TIMESTAMPS : Questions Discussed
00:00 Introduction
02:00 Puzzle question
03:40 5th highest salary in a table
04:17 dense_rank
04:50 How to find duplicates in a table
05:33 lead and lag
06:26 What is datafactory? How is it different from databricks?
07:28 Use of datafactory and databricks in orchestrating the etl workflows
09:17 What is Hive metastore?
10:30 How would you design a highly available and scalable architecture in azure databricks?
12:19 Difference between spark session and spark context
13:02 storage service on azure
15:04 Scenario based questions - SQL
18:53 Types of joins in pyspark
21:29 types of triggers
22:10 Difference between rdd and dataframe,datasets
23:29 Spark architecture
26:55 Drawbacks of mapreduce
28:17 Difference between list and tuples,Dictionaries
29:07 lambda functions in python
29:40 Question based on spark architecture
Music track: Retro by Chill Pulse
Source: freetouse.com/music
Background Music for Video (Free)
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#mockinterview #bigdata #career #dataengineering #data #datascience #dataanalysis #productbasedcompanies #interviewquestions #apachespark #google #interview #faang #companies #amazon #walmart #flipkart #microsoft #azure #databricks #jobs
Quite helpful, thanks Prakhar sir!
That's really Informative.
last question: worker node config should smaller compare to driver node. as spark works on distributed architecture , also cost comes to picture
Guruji pranaam🙏🙏
Informative!
String n col name manipulation
for quiz question how come chocolates are coming as 22 can someone plz explain
my understanding 15 coins = 15 chocolates
3 wrapper = 1chocolate
then 15/3 = 5 chocolate
5 chocolate = 5 wrapper = 1 chocolate
15+5+1 = 21 chocolate
You can get 15 chocolates for 15 Rupees. With the wrappers you can get 15/3= 5 more chocolates. If you are allowed to use the wrappers from the “free” chocolate, you can get one more chocolate with two wrappers left over. That's 21 so far, but when you eat that last chocolate you now have 3 more wrappers. One more chocolate 21+1= 22 chocolates.
One more chocolate gives a total of 22. And a stomachache.
Thanks