Alation Software Development Engineer II Interview Questions and Answers

Q1. Question around priority queue
Add your answer
Q2. Decode strings leetcode
Add your answer

Q1. System design questions scenario based
Add your answer

Q1. Questions on multidimensional tree
Add your answer

2 Leetcode Medium questions on hackerrank

Q1. Kadane algorithm based question
Add your answer
Q2. Leetcode medium
Add your answer
Q3. Resume based questions
Add your answer

Q1. Probability question math problem
Add your answer
Q2. Puzzle to solve
Add your answer
Q3. AI based question
Add your answer
Q4. 1 question to solve Leetcode medium
Add your answer

Q1. OOPs related questions.
Add your answer
Q2. Joins, Indexes and some problems to write sql queries.
Add your answer

Q1. Promises in javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
Answered by AI
Add your answer

2 Query question and 3 coding questions

Q1. Basic oops , Java script and Networking questions.
Add your answer
Q2. What is object orienteered programming.
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Objects are instances of classes, which define the structure and behavior of the objects.

• Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.

• Example: Java, C++, Python are popular languages that support object oriented programming.
Answered by AI
Add your answer
Q3. Different Events in java script
Ans. 
Events in JavaScript are actions or occurrences that happen in the browser that the code can respond to.
• Events can be triggered by user actions (like clicking a button), browser actions (like page load), or system events (like a timer expiring)

• Event listeners are used to listen for and respond to events

• Common events include click, mouseover, keydown, submit, etc.
Answered by AI
Add your answer
Q4. Event listeners
Add your answer

Project , coding question, DBMS

Q1. Basic personal details
Add your answer

2 DSA questions Both are from DP

Q1. 2 Questions , 1 is DSA
Add your answer
Q2. Second question is Puzzle
Add your answer

Q1. Pointless basic questions is what they asked
Add your answer

Q1. They had this round for hours together
Add your answer

Q1. Mimic Dataframe Merge
Ans. 
Implement a function to mimic the functionality of merging two DataFrames in Python.
• Create a function that takes two DataFrames as input.

• Merge the two DataFrames based on a common column or index.

• Handle different types of joins like inner, outer, left, and right joins.

• Return the merged DataFrame as output.
Answered by AI
Add your answer
Q2. Improve above case by case
Add your answer

1 hour - Find longest palindromic substring