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I was interviewed in Aug 2024.
Implement a linked list with methods to find the second largest and second smallest elements.
Create a linked list class with methods to insert elements, find second largest, and find second smallest.
Traverse the linked list to find the largest and smallest elements, then find the second largest and second smallest.
Handle edge cases such as empty list or lists with less than 2 elements.
Consider using a priority queue to...
Find the character with the highest frequency in a given string.
Iterate through the string and count the frequency of each character using a hashmap.
Track the character with the highest frequency as you iterate.
Return the character with the highest frequency at the end.
Find and print the longest common subsequence in an array of strings
Use dynamic programming to find the longest common subsequence
Iterate through the array of strings to find common characters
Print the longest common subsequence found
Solid design principles are fundamental guidelines for designing software that is maintainable, scalable, and efficient.
Follow the SOLID principles (Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, Dependency Inversion)
Use design patterns like Factory, Singleton, Observer, etc. to solve common design problems
Keep code modular, reusable, and easy to understand
Separate concerns and avoid ti
Easy test not hard reasoning
I am a detail-oriented analyst with a strong background in data analysis and problem-solving skills.
I have a Bachelor's degree in Statistics
I have experience using statistical software such as SPSS and SAS
I have strong communication skills and can present complex data in a clear and concise manner
I applied via Naukri.com and was interviewed in Jul 2024. There were 3 interview rounds.
I applied via Referral and was interviewed in Jul 2024. There were 2 interview rounds.
2 coding questions were asked one on string to remove the nested parantheses and form string.
Second question was- I was given a mapping array and a num array
Mapping - {6,2,0,7,1,8,3,4,5,9}
NUM- {996, 25, 225}
Output- 553, 08, 008}
Callback method in Java allows passing a function as an argument to another function. Alternatives include using interfaces, lambda expressions, and method references.
Callback method allows passing a function as an argument to another function
Alternatives include using interfaces, lambda expressions, and method references
Example: Using Runnable interface in Java to pass a function as a callback
Hashmap is not thread-safe, while ConcurrentHashMap is thread-safe and allows for concurrent access.
Hashmap is not thread-safe and can lead to race conditions in a multi-threaded environment.
ConcurrentHashMap is thread-safe and allows for concurrent access by multiple threads without the need for external synchronization.
ConcurrentHashMap achieves thread-safety by dividing the map into segments, each of which can be lo...
You can invoke a method using a constructor by creating an instance of the class and calling the method, or by using a variable that holds a reference to the method.
Invoke method using constructor: ClassName obj = new ClassName(); obj.methodName();
Invoke method using variable: ClassName obj = new ClassName(); Runnable r = obj::methodName; r.run();
Walmart interview questions for popular designations
Sql and python questions were asked
I am fit for the role due to my extensive experience in data analysis, strong analytical skills, and ability to communicate insights effectively.
Extensive experience in data analysis
Strong analytical skills
Ability to communicate insights effectively
Implemented predictive analytics model to optimize inventory management for a retail company
Identified key factors affecting inventory levels such as seasonality, promotions, and supplier lead times
Utilized historical sales data to forecast demand and optimize inventory levels
Developed a predictive analytics model using machine learning algorithms to predict future sales and recommend optimal inventory levels
Implemente...
Get interview-ready with Top Walmart Interview Questions
I applied via Job Portal and was interviewed in Oct 2024. There was 1 interview round.
Cost optimization in Big Query involves optimizing query performance, storage usage, and data transfer costs.
Utilize partitioned tables to reduce query costs by scanning only relevant partitions
Use clustering to organize data within partitions and improve query performance
Optimize queries by using efficient SQL syntax and avoiding unnecessary operations
Leverage caching to reduce repeated query costs
Monitor and analyze ...
Various ways to ingest data in BigQuery include batch loading, streaming, and using third-party tools.
Batch loading: Uploading data in bulk using tools like Cloud Storage or Data Transfer Service.
Streaming: Sending data in real-time using APIs like Dataflow or Pub/Sub.
Third-party tools: Using tools like Talend or Informatica for data ingestion.
I applied via Newspaper Ad
DSA, Fundamentals, Principles
Inheritance in C++ allows a class to inherit properties and behavior from another class.
Inheritance allows for code reusability by creating a new class based on an existing class.
Derived class inherits attributes and methods from the base class.
Types of inheritance include single, multiple, multilevel, and hierarchical.
Example: class Animal is a base class, class Dog is a derived class inheriting from Animal.
I applied via Job Portal and was interviewed in Oct 2024. There were 2 interview rounds.
Adapting to change is crucial for success in any role, especially as a Senior Analyst.
Embrace change as an opportunity for growth and learning
Stay flexible and open-minded to new ideas and ways of working
Communicate effectively with team members and stakeholders during transitions
Seek feedback and continuously improve based on new information
Develop resilience to handle unexpected challenges
I applied via Approached by Company and was interviewed in Oct 2024. There were 2 interview rounds.
Fragments can communicate among themselves using interfaces, shared view models, and activity callbacks.
Use interfaces to define communication contract between fragments
Implement the interface in the hosting activity and pass it to the fragments
Use shared view models to share data between fragments
Use activity callbacks like onActivityResult() to communicate between fragments
Find cycle in a linked list
I applied via Referral and was interviewed in Oct 2024. There were 3 interview rounds.
1. Find substring with no repeating characters
2. Weight of each element where weight is equal to all the elements bigger than element towards right side.
3. Linklist to break a cycle
1. Selenium use cases
2. Testing three windows
3. Equating table data from db and ui
For a big feature, create detailed test cases and test plan to ensure thorough testing.
Understand the requirements and functionality of the feature
Identify different scenarios and edge cases to be tested
Prioritize test cases based on criticality and impact
Create test plan outlining test objectives, scope, resources, and timelines
Execute test cases, report defects, and retest after fixes
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The duration of Walmart interview process can vary, but typically it takes about less than 2 weeks to complete.
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