Visa Data Engineering Intern Interview Questions and Answers

There was a coding test on HackerRank platform, we were given 10 MCQs , 1 coding Question( leetcode easy - priority queues( to be done in 5 min if you do competitive coding) ) , 1 SQL easy-medium question (TIP: Practice SQL queries from HackerRank or Leetcode before the test as time matters ) Try to submit it as soon as possible, theres marks for time.

Q1. It started with normal questions like introduce yourself , then he asked why do you want to join VISA? A typical question ( TIP: TRY to learn everything about VISA , like their stock prices , their number ...read more
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Q2. What are your Strengths and Weaknesses ?
Ans. 
My strengths include problem-solving, attention to detail, and strong analytical skills. My weaknesses include public speaking and time management.
• Strength: Problem-solving - I enjoy analyzing complex problems and finding efficient solutions.

• Strength: Attention to detail - I have a keen eye for detail and strive for accuracy in my work.

• Strength: Analytical skills - I am proficient in data analysis and can effectively i...read more
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Q3. Explain the Concepts of OOPS , abstraction inheritance polymorphism and encapsulation.
Ans. 
OOPS concepts include abstraction, inheritance, polymorphism, and encapsulation.
• Abstraction: Hiding implementation details and showing only necessary information.

• Inheritance: Creating new classes from existing ones, inheriting properties and methods.

• Polymorphism: Using a single method to perform different actions based on the object type.

• Encapsulation: Binding data and methods together, protecting data from outside int
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