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I was interviewed before Jul 2023.
Zookeeper uses odd number of nodes to ensure a majority quorum for leader election and data consistency.
Odd number of nodes helps in avoiding split-brain scenarios where multiple nodes claim to be the leader
With an odd number of nodes, a majority quorum can be established to elect a leader and maintain data consistency
In case of network partitions, having an odd number of nodes ensures that there is always a majority t
I applied via Approached by Company and was interviewed before Jun 2023. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Aug 2023. There were 4 interview rounds.
Aptitude test to filter students for next round
Coding test Data structure Algorithm to filter for next round
I applied via Referral and was interviewed before Apr 2023. There were 3 interview rounds.
Python program to parse JSON
Use the json module in Python to parse JSON data
Use the loads() method to load JSON data into a Python dictionary
Access the data in the dictionary using keys
Optimizing JOIN queries in Spark involves partitioning data, using broadcast joins, and optimizing shuffle operations.
Partition data to avoid shuffling unnecessary data across the network
Use broadcast joins for small tables that can fit in memory of each executor
Optimize shuffle operations by tuning shuffle partitions and memory settings
No case study was asked. HM asked about my experience and project details.
Walmart Labs interview questions for popular designations
I applied via campus placement at Madras Institute of Technology, Chennai and was interviewed before Jun 2023. There were 4 interview rounds.
2 questions and 15 mcq
Get interview-ready with Top Walmart Labs Interview Questions
I applied via Job Portal and was interviewed before Apr 2023. There were 4 interview rounds.
Coding round on D2C - codehers
Move all 0s to the end of the array while maintaining the order of other elements.
Iterate through the array and keep track of the index to place non-zero elements.
After iterating, fill the remaining positions with 0s.
I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed before Apr 2023. There were 4 interview rounds.
1. Simple sliding window problem
2. Hard problem involved dynamic programming
I applied via Approached by Company and was interviewed before Feb 2023. There were 4 interview rounds.
Easy medium level leetcode problems
Reverse a linked list and discuss sorting algorithms.
To reverse a linked list, you can use a three-pointer approach.
Sorting algorithms include bubble sort, insertion sort, merge sort, quicksort, etc.
Discuss the time complexity and space complexity of each sorting algorithm.
Provide examples of how each sorting algorithm works.
I applied via Approached by Company and was interviewed before Apr 2023. There were 2 interview rounds.
Basic problem-solving questions Leetcode easy. Focus on optimisation
A survey analysis tool helps in analyzing and visualizing survey data to draw insights.
Use data visualization techniques like bar charts, pie charts, and histograms to represent survey results.
Utilize statistical analysis methods to identify trends and patterns in the data.
Implement machine learning algorithms for predictive analysis based on survey responses.
Allow for filtering and segmentation of survey data based on...
I applied via Job Portal and was interviewed before Sep 2023. There was 1 interview round.
2 DSA based questions
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The duration of Walmart Labs interview process can vary, but typically it takes about less than 2 weeks to complete.
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