Visa Inc. Interview Expertise (On-Campus) 2022

Interview Expertise from Birla Institute of Expertise, Mesra.

Spherical 1(Coding Take a look at): The primary spherical was a web based coding check on HackerRank platform that consist of three coding questions and was carried out for 1 hour half-hour. The questions have been:

• https://leetcode.com/issues/minimum-falling-path-sum/
• https://leetcode.com/issues/longest-increasing-subsequence/
• https://leetcode.com/issues/sell-diminishing-valued-colored-balls/

Round 16 college students have been shortlisted for interviews.;

Spherical 2(Technical):

• The interviewer launched himself and requested me to present my introduction.
• Then he requested about my tasks and tech stacks used.
• I defined him about all tech stacks used.
• After that, he requested a coding query. Given a sorted array, print the lacking numbers in it. He was simply testing our thought course of.
• Then he requested me to jot down code of GCD operate.
• Then he gave two tables Emp_Info and Emp_sal and requested two SQL queries associated to them.
• First query was a simple one, it was associated to SUBSTR operate.
• Second query was to get the 2nd Most which might be solved utilizing the ideas of LEFT JOIN, ORDER BY, TOP, OFFSET.
• What’s OSI Mannequin?
• Ultimately, he requested whether or not I had any questions for him.          

Spherical 3(Technical): 

• Inform me one thing about your tasks?
• Distinction between SQL and NO-SQL Database?
• Actual life examples the place we are going to want utilizing SQL and NO-SQL Database?
• How will you deal with 1 million requests in your software?
• Distinction between http and https?
• What are net sockets?
• Software program Growth Methodologies?
• Software program Growth Life Cycle?
• Which is extra vital growth or testing and why?
• What are Deadlocks?
• Vital circumstances for impasse? Given a printer and a scanner when can impasse happen?
• Impasse dealing with methods? Which method is utilized by home windows OS?
• Then he requested a coding query : https://www.geeksforgeeks.org/sum-two-large-numbers/
• Methods to greatest preserve a sorted checklist from a stream of integers?
• Then he requested me a puzzle : https://www.geeksforgeeks.org/puzzle-50-red-marbles-and-50-blue-marbles/
• Ultimately, he requested whether or not I had any questions for him.

Last Spherical(Technical plus managerial): In my case it was extra of technical.

• The interviewer was very pleasant. He gave his introduction first and requested my introduction.
• He went via my resume and requested about RazorPay API which I had utilized in considered one of my undertaking.
• What’s going to you do if outage occurs in Razorpay API?
• What’s going to you do in a scenario the place your colleague is taking credit score of the work accomplished by you?
• How will you discover the cvv of a Debit card? Mainly we’ve to make use of all 3-digit numbers and test for correctness.
• The interview additionally gave one other answer and requested me to present factors why my answer is best than his.
• How will I create a doubly-linked checklist? An actual life use of doubly-linked checklist?
• Then we had a brief dialogue on LRU as I advised him we use doubly-linked checklist in it.
• Do you could have any questions for me?

Outcomes have been introduced round 9:30 pm.

4 college students have been lastly chosen for 6month+FTE at VISA Inc. and I used to be considered one of them.