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I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.
Optimizing pyspark jobs involves tuning configurations, partitioning data, caching, and using efficient transformations.
Tune configurations such as executor memory, number of executors, and parallelism to optimize performance.
Partition data properly to distribute workload evenly and avoid shuffling.
Cache intermediate results to avoid recomputation.
Use efficient transformations like map, filter, and reduceByKey instead ...
Stored procedures in Databricks can be written using SQL or Python.
Use %sql magic command to write SQL stored procedures
Use %python magic command to write Python stored procedures
Stored procedures can be saved and executed in Databricks notebooks
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I applied via Naukri.com and was interviewed in Mar 2021. There were 4 interview rounds.
I appeared for an interview in Dec 2020.
Round duration - 40 minutes
Round difficulty - Easy
Given an integer array ARR
of size N
, your task is to find the total number of subsequences in which all elements are equal.
A subsequence of an array i...
Count the total number of subsequences in which all elements are equal in an integer array.
Iterate through the array and count the frequency of each element.
Calculate the total number of subsequences for each element using the formula (frequency * (frequency + 1) / 2).
Sum up the total number of subsequences for all elements and return the result modulo 10^9 + 7.
Tip 1 : Do practice as much as you can
Tip 2 : Coding is key to crack
Tip 1 : It should look nice
Tip 2 : Skills should be mentioned properly
I applied via Referral and was interviewed in Apr 2021. There were 3 interview rounds.
I applied via Company Website and was interviewed in Jan 2021. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Aug 2021. There was 1 interview round.
I applied via Campus Placement and was interviewed in Sep 2021. There was 1 interview round.
I applied via Referral and was interviewed in Apr 2021. There were 5 interview rounds.
I am currently working on developing a mobile application for a client in the hospitality industry.
The application will allow users to make reservations and order food and drinks from their mobile devices.
We are using React Native for the front-end and Node.js for the back-end.
We are also implementing a payment gateway to allow for secure transactions.
The client has requested that the app be available in both iOS and A...
I applied via Recruitment Consultant and was interviewed in Apr 2021. There were 3 interview rounds.
based on 3 interview experiences
Difficulty level
Duration
based on 14 reviews
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8-10 Yrs
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7-8 Yrs
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9-12 Yrs
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