Visa SDE Interview Questions and Answers

1 easy question based on string and core subjects amd project related questions

3 Coding Questions of moderate level .

Q1. DBMS Project asked in deep.
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Q2. Basic codes to write e.g. Insertion , Deletion in Linkedlist
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Q3. As i haved added ML project. They go into algorithms detailed explanation.
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Q1. Ask Questions abt family background.
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Q2. Few more details about your future plan.
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Very easy online coding round

Q1. E mail classifier using ML
Ans. 
Email classifier using ML
• Use supervised learning algorithms like Naive Bayes or Support Vector Machines

• Preprocess email data by tokenizing, removing stop words, and stemming

• Split data into training and testing sets for model evaluation

• Evaluate model performance using metrics like accuracy, precision, recall, and F1 score
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Q2. What do you think about chatgot
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Q1. Design a SQL Database
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Asked me to rewrite SQL in 20 minutes insanely tough and rude interviewer

Given 3 DSA medium level problems

One hour face to face round. Given system design problem of parking lot.

Q1. Description about project from resume
Ans. 
Developed a web application for online shopping
• Used HTML, CSS, and JavaScript for front-end development

• Implemented backend using Node.js and MongoDB

• Integrated payment gateway for secure transactions
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Q2. Lot of behavourial questions.
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Q1. Different scopes of a bean
Ans. 
The different scopes of a bean in software development.
• Singleton: A single instance of the bean is created and shared across the application.

• Prototype: A new instance of the bean is created every time it is requested.

• Request: A new instance of the bean is created for each HTTP request.

• Session: A new instance of the bean is created for each user session.

• Global session: A new instance of the bean is created for each glob
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2 easy level dsa ques

Q1. A simple 2d matrix ques
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Q2. Ques on computer networks and projects
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