Finding the number of leaves of a binary tree using recursion and iterative approach.
Developer Intern Interview Questions
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General questions about my experience to begin with. Next, they delved into my projects and how I utilized the tools and they wanted proficiency. They gave no importance to course curriculum and what's begin done in classroom.
Asked about my experiences in school. If I was experienced in REST, TDD, code reviews, agile, etc. Also gave some "mise en situation" where they would ask what would do in this situation, etc. For the leetcode questions, it was a string manipulation one and another with arithmetic manipulation (using % operator).
Round 1: 1. 2 sum 2. 3 sum 3. destructuring a list in Python 4. discussion on the project 5 Sql query 2nd highest salary 6. questions on React, Django, and Linux basically what skills you have written on your resume Round 2: 1. Real-life questions like if you have the IRCTC app how would you take such a large no. of requests in such a short duration? 2. How to know if your app is accessed by a human or a bot? 3. Authentication, Authorization Jwt token, session-based authentication difference on token-based and session-based authentication. 4. Some SQL queries. 5. Hashmap implementation (theory), Redblack tree conditions Bst tree conditions. hashmap collision prevention techniques. and the complexity of everything mentioned above. Round 3 and 4 are just casual talks
Q: How do you create many-to-many relationship in SQL? Q: What is the difference between put and patch requests?
Differentiate between outer join and inner join
What backend language you used for your fyp? (They more prefers to Java SpringBoot - I think)
For the leetcode section: Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + nums[k] == 0. Notice that the solution set must not contain duplicate triplets.
Why did you choose NCR
How would you test a pen?
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