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I applied via Approached by Company and was interviewed in Apr 2024. There were 4 interview rounds.
I applied via Recruitment Consulltant and was interviewed in Apr 2024. There were 4 interview rounds.
List of decreasing integers with dates
Create an array of strings with decreasing integers and corresponding dates
Start with the highest integer and oldest date, and decrease the integer with each subsequent date
Example: ['10 - 2022-01-01', '9 - 2022-01-02', '8 - 2022-01-03', ...]
To identify customers who have made transactions on more than 10 consecutive days.
Identify customers who have made transactions every day for at least 10 days in a row.
Check transaction history for each customer to determine consecutive days of transactions.
Create a list of customers who meet the criteria.
Consider using SQL queries or data visualization tools to analyze the data.
Example: Customer A made transactions on...
MasterCard interview questions for popular designations
I applied via LinkedIn and was interviewed in Apr 2024. There were 2 interview rounds.
Answering questions related to microservice architecture, design patterns, Kafka cluster data loss prevention, and monitoring/recovery in Appdynamics.
My last project architecture was based on microservices, utilizing design patterns such as Circuit Breaker, Service Registry, and API Gateway.
Saga pattern is used in microservices to manage distributed transactions across multiple services.
In the event of data loss in a K...
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I applied via LinkedIn
Collection framework is a unified architecture for representing and manipulating collections of objects in Java.
It provides interfaces (List, Set, Map) and classes (ArrayList, HashSet, HashMap) to store and manipulate groups of objects.
Collections framework simplifies the process of storing, retrieving, and manipulating data in Java programs.
It allows developers to work with collections of objects in a consistent and e...
Data driven testing is a testing approach where test cases are created based on data from external sources.
Test cases are designed based on input data and expected output data
Allows for testing multiple scenarios with different data sets
Reduces the need for manual intervention in test case creation and execution
I applied via Company Website and was interviewed in Nov 2024. There was 1 interview round.
I applied via Campus Placement and was interviewed in Sep 2024. There was 1 interview round.
2 coding questions, 1hr
To delete duplicate values, use SQL queries with DISTINCT keyword or programming languages like Python with sets.
In SQL, use SELECT DISTINCT to retrieve unique values
In Python, convert list to set to automatically remove duplicates
Use pandas library in Python to drop duplicates in a DataFrame
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