Visa Software Engineer Intern Trainee Interview Questions and Answers

Some aplitude MCQ and coding questions along with core subjects MCQ where asked

Q1. They were asking differently for everyone with some of them they asked DSA, SQL and with some of them they asked about cloud , Ai and some with deep project details that they mentioned in their resume
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Q2. Good knowledge ofAI
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Q3. Knowledge of cloud computing
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Q4. DSA Question on simple MEX
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Q5. SQl queries which was a little tough
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Q1. Java Based question answers
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Q2. Array traversal problem
Ans. 
Traverse an array of strings
• Use a loop to iterate through each element in the array

• Access each element using its index

• Perform any necessary operations on each element
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Q1. Explain Concurrency
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Concurrency is the ability of a system to execute multiple tasks simultaneously.
• Concurrency allows multiple tasks to run concurrently, improving performance and efficiency.

• Concurrency can be achieved through multithreading or multiprocessing.

• Example: A web server handling multiple requests simultaneously using multithreading.
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Q2. Explain Acid principles
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ACID principles are a set of properties that guarantee database transactions are processed reliably.
• Atomicity: Transactions are all or nothing. If one part of the transaction fails, the entire transaction is rolled back.

• Consistency: Transactions bring the database from one valid state to another. All constraints are satisfied.

• Isolation: Transactions are isolated from each other until they are completed.

• Durability: Once...read more
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Java 8, Mysql, sprin, c, c++

Q1. Questions based on core java and oops concepts
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