MasterCard Interview Questions, Process, and Tips

Q1. What is the difference between web service and REST API?
Ans. 
Web service is a generic term for any service available over the internet, while REST API is a specific type of web service that follows REST architectural principles.
• Web service is a broad term that encompasses any service available over the internet, including SOAP, REST, and others.

• REST API is a specific type of web service that follows the principles of Representational State Transfer (REST).

• REST APIs use standard ...read more
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Shell scripts, automation questions asked

Analytics related with a dataset and PPT submission

Related to AI, cybersecurity.

Q1. There are 25 horses among which you need to find fastest 3. You don't have a timer and a race can be among maximum 5 horses. Find minimum number of races required.
Ans. 
Minimum 7 races are required to find the fastest 3 horses.
• Divide the 25 horses into 5 groups of 5 horses each.

• Conduct a race among each group, identifying the fastest horse in each race.

• Take the top 3 horses from each race and conduct a final race among them.

• The top 3 horses in the final race will be the fastest 3 horses overall.
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Q1. How would you copy a large dataset
Ans. 
Use a data migration tool to copy the dataset efficiently.
• Utilize a data migration tool like AWS Data Pipeline, Apache Nifi, or Talend to copy the dataset.

• Break down the dataset into smaller chunks to avoid overwhelming the system.

• Ensure proper data validation and error handling during the copying process.

• Consider using parallel processing to speed up the copying process.

• Monitor the progress of the dataset copying to t
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Q2. Do you think data analysis job is overrated?
Ans. 
No, data analysis job is not overrated as it plays a crucial role in decision-making and problem-solving.
• Data analysis helps in identifying trends and patterns in data

• It provides valuable insights for businesses to make informed decisions

• Data analysis is essential for optimizing processes and improving efficiency

• It can uncover hidden opportunities and potential risks

• Many industries rely on data analysis for strategic p
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