Filter interviews by
I applied via LinkedIn and was interviewed in Sep 2024. There were 2 interview rounds.
Based on python and sql
I applied via Approached by Company and was interviewed in Jun 2024. There was 1 interview round.
For processing 10TB of file in Spark, consider allocating multiple executors with sufficient cores to maximize parallel processing.
Allocate multiple executors to handle the large file size efficiently
Determine the optimal number of cores per executor based on the available resources and workload
Consider the memory requirements for each executor to avoid out-of-memory errors
Adjust the configuration based on the specific
What people are saying about Walmart
Walmart interview questions for designations
I applied via Approached by Company and was interviewed in Jun 2022. There were 2 interview rounds.
Design and code a scheduler for allocating meeting rooms based on input of room counts and timestamps.
Create a table with columns for room number, start time, and end time
Use SQL queries to check for available slots and allocate rooms
Consider edge cases such as overlapping meetings and room availability
Use a loop to continuously check for available slots and allocate rooms
Implement error handling for invalid input
I applied via Approached by Company and was interviewed before Jan 2022. There were 4 interview rounds.
I applied via Recruitment Consulltant and was interviewed before Feb 2023. There was 1 interview round.
SQL, Spark, Hive, Python
Collections are essential for efficient data manipulation in Python. A strong grasp of collections is crucial for a data engineer.
Familiarity with lists, tuples, sets, and dictionaries
Understanding of when to use each collection type
Ability to manipulate and iterate through collections
Knowledge of built-in collection methods and functions
Experience with third-party collection libraries like NumPy and Pandas
I was interviewed before Jun 2021.
Round duration - 180 minutes
Round difficulty - Easy
It was an mcq + coding round. There were aptitude and ouput based question in mcq. And coding questions were easy
Given an integer array 'ARR' of size 'N' containing numbers from 0 to (N - 2). Each number appears at least once, and there is one number that appears twice. Yo...
Find the duplicate number in an array of integers from 0 to (N-2).
Iterate through the array and keep track of the frequency of each number using a hashmap.
Return the number with a frequency greater than 1 as the duplicate number.
Time complexity can be optimized to O(N) using Floyd's Tortoise and Hare algorithm.
You are provided with a string S
and an array of integers A
of size M
. Your task is to perform M
operations on the string as specified by the indices in array A
...
Given a string and an array of indices, reverse substrings based on the indices to obtain the final string.
Iterate through the array of indices and reverse the substrings accordingly
Ensure the range specified by each index is non-empty
Return the final string after all operations are completed
Round duration - 60 Minutes
Round difficulty - Easy
It was technical + hr round. there were 2 people as interviewer. They stated from intro and asked some basic puzzles and hr questions. After that they asked about my projects, technologies and some ds algo and dbms questions.
Tip 1 : Practice aptitude
Tip 2 : Focus on practicing coding
Tip 3 : Learn from mistakes
Tip 1 : Mention some projects that you have done
Tip 2 : Try to have skills that are required for the role
Fan trap is a situation in which a query involving multiple tables results in a Cartesian product.
Fan trap occurs when a table is connected to multiple tables in a one-to-many relationship.
It can be solved by creating a bridge table or by using aggregate functions.
For example, if a customer table is connected to an orders table and a products table, a fan trap can occur when trying to retrieve information about custome...
Dynamic break in report allows for automatic page breaks based on data.
Define a break field in the report design
Set the break field to trigger a page break when its value changes
Use dynamic break to automatically adjust page breaks based on data
Example: A report on sales by region can use dynamic break to create a new page for each region
Foreach function is used to iterate through an array of strings in a report.
Foreach function is used to loop through each element in an array of strings.
It can be used to display each element in a report.
Example: foreach(string item in stringArray){ Console.WriteLine(item); }
Aggregate awareness is a feature in Business Objects that allows reports to be optimized for performance by using aggregate tables.
Aggregate awareness is used when creating reports in Business Objects
It allows the report to use aggregate tables instead of detailed tables for improved performance
Syntax: AGGR_AWARE( Example: AGGR_AWARE(Product, Sum(Sales), Sales_Fact_Table) The @prompt function syntax is used to display a prompt message to the user and receive input. The syntax is @prompt('message', 'default value') The message is the prompt message to be displayed to the user The default value is optional and will be displayed in the input field The function returns the value entered by the user
based on 6 interviews
2 Interview rounds
based on 23
reviews
Rating in categories
₹0
L/yr - ₹0
L/yr
₹0
L/yr - ₹0
L/yr
₹0
L/yr - ₹0
L/yr
₹0
L/yr - ₹0
L/yr
₹0
L/yr - ₹0
L/yr
Amazon Flipkart Microsoft Corporation Google)
Tell us how to improve this page.
Walmart Interviews By Designations
Interview Questions for Popular Designations
Walmart Data Engineer Interview Process
Data Engineer Interview Questions from Similar Companies
Fast track your campus placements
Walmart Data Engineer Reviews and Ratings
Explore more salaries
Software Engineer III
Senior Software Engineer
Software Engineer
Software Development Engineer 3
Business Development Associate