Interview Questions

Constantin P. - "Reinforcement Learning is a type of machine learning where an agent learns to make decisions by trying out different actions and receiving rewards or penalties in return. The goal is to learn, over time, which actions yield the highest rewards. There are three core components in RL: The agent — the learner or decision-maker (e.g., an algorithm or robot), The environment — everything the agent interacts with, Actions and rewards — the agent takes actions, and the environmen"See full answer

Rohit K. - "First, let's align the Airbnb homepage with Airbnb's mission. Airbnb's mission is to "create a world where anyone can belong anywhere by providing healthy travel that is local, authentic, diverse, inclusive and sustainable." The homepage serves as the primary entry point for both potential guests and hosts, setting the stage for their journey and embodying this mission. Now, for the goals of Airbnb homepage, we can consider different aspects like awareness, engagement, and ultimately, driving bo"See full answer

Gowtami K. - "with cte as (select *, row_number() over(order by score desc) as rn from players) select player_name, score, rn as ranking from cte where rn= 4 or rn =6 or rn =11 `"See full answer

Louisa C. - "I think AI such as ChatGPT seemed to spit out its answers fast and instinctively, hence proving its efficiency but in the recent versions it seems to have acquired reasoning skills which was revealed 'transparently' to users. This new, reasoning skills introduce a small delay in its response and explains what it does during the delay but I do not really think that it is "thinking" any differently than before, except that it is constrained by some purported rules when asked to summarise certain b"See full answer

Jim T. - "In the end I said number of bookings, but explained how I would get there. I talked about the company's mission first (which I didn't know but guessed it was something about making it easier or more accessible for people to travel) and then talked about a few potential metrics that could fit (bookings, NPS, etc). But in the end I explained that number of bookings is not only tied to their core value proposition, but it also reflected a happy customer base on both sides of the transaction (renter"See full answer

Exponent - "This is another Diagnosis problem. To answer this question, we suggest you use our framework (along with the TROPIC method) to be as thorough as possible. The framework is as follows: Ask clarifying questions List potential high level reasons Gather Context (TROPIC)Time Region Other features / products (internal) Platform Industry / Competition Cannibalization Establish a theory of probable cause Test theories Propose solutions Summarize "See full answer

Prashant Y. - "The height of a binary tree is the maximum number of edges from the root node to any leaf node. To calculate the height of a binary tree, we can use a recursive approach. The basic idea is to compare the heights of the left and right subtrees of the root node, and return the maximum of them plus one."See full answer

Ranjani M. - "What is the goal of this product? If its engagement for the people in a flight, can other options be explored? If there is a particular business insistence for hangman for engagement, the following can be the features of the game: Pain point: Typing might be hard Feature: Connect with phone keyboard to enable typing Pain point: These games do not engage multiple people simultaneously. Have leaderboards and multiplayer duels where the game is designed to hang the other player in case of a"See full answer

Nirmmall K. - "I would recreate the issue from my side to land at the 404 error and check which page has issues with retrieving the information. Booking.com has a lot of features and workflows inside the product, so I would see how many users use this flow which gives back this error and try to get the metrics to know the criticality of the issue. I would talk to the engineering team to look into this and discuss to set a deadline for the fix based on the criticality. Since the sales team reported this iss"See full answer

Alessandra L. - "My answer followed the framework: Users -> Goals -> Main Tasks -> Requirements -> Design -> Implementation -> Launch"See full answer