Interview Questions

Bhavna S. - "Before diving into the Solution, I would ask a few clarifying questions. What is the scope of the fake news What type of fake news are we focusing on - Political, Health-related, etc Are we looking at specific examples or a general category of fake news When you say impact, what do you mean by that? Is it time spent on posts, the nature of the engagement (e.g., likes, shares, comments), and the sentiment of the comments? User Demographics: what is the demographic pr"See full answer

Kaitlyn M. - "System architecture diagram. Define API params, responses, tradeoffs between caching and webhooks to update message delivery status."See full answer

Sambangi C. - "#simple solution 1.firstly find the node in the bst (O(logn) time complexity it take) 2.now removing the node consists of 3 cases: 1.if the node is leaf (no children): (keep track of parent and do) parent.left or parent.right=NULL simply remove the node () 2.if(has one child) replace the node with its child 3.if has both childs we replace the node with either inorder predesor(max of left tree)or inorder succesor and remove the node wh"See full answer

Jacob C. - "Clarifying Qns: Did the watch time went down and comments went up for the same videos or are we saying total watch time and total comments on Youtube? (Total) I am assuming we are not including Youtube Live videos because those are typically live chat 1000’s of comments for a single video. (Correct) Do we know if these two could be independent problems not correlated with each other (No) Here is my approach to diagnose the root cause: Will look at some general trends first Intern"See full answer

Gadi R. - "So first, I have some clarifying questions, what is Facebook lite? If I understand correctly this is a version of the Facebook application for Android, with the same functionality but lighter in terms of size. It is aimed to be used in emerging markets where the bandwidth is limited What are the tradeoffs for the size of the app? I guess that some visual elements are stripped down from the app and reduced its size Is this application exist or I am launching it The timeframe of the product?"See full answer

Yair G. - "Are we speaking of all Meta Ads products on something specific? All of them Meta is a social media and AI company that generates most of it's revenue from Ads on social media. Meta's mission is to empower people to build communities and bring the world closer together. If ads violate the community guidelines regulations that can directly hurt both Meta's mission and its revenue stream. For example ads that include hate speech are against community guidelines and also hurts Meta's mission. Ha"See full answer

Vishal S. - "Product Understanding - Ads are what you see from companies as stories, posts, reels. Post are from users (connections). We have to design an experience which produces maximum engagement while generating ad revenue. Clarifying Questions - Is it specific to posts/stories/reels ? Is there an existing post to ads ratio or do we have to start from scratch? Is it specific to a device/OS? Is it specific to a region/user demographic? Assumption - Existing posts to ads ratio"See full answer

Bk - "Clarification: By Improvement we could delve into either improving Monetization, User Engagement, Experience or Retention. Project Goal: In particular letz focus on improving User Engagement/Experience which may also pave way into monetizing - cuz the way I see it is to put out multiple configurations /packages in the market, and allow users to choose and pay for the services. Its as simple as hiring a full time assistant vs part time. U pay for the service rendered. **Product Vision"See full answer

Neeraj K. - "Clarify 10X -> usage or revenue Approach What is Msft Copilot & key capabilities Understand the space in which Copilot operates : Target segments & use-cases serve Competitors (alternatives) Leverage microsoft has : Understand the stack (infra -> application layer) -> leverage Understand Microsoft ecosystem & leverage we have Define : 10X growth strategy (for whom -> & what? -> distribution (acquire & retain)) MSft Copilot & key capabilities Cons"See full answer

Bradley E. - "Here's a simpler solution: select u.username , count(p.postid) as countposts from posts as p join users as u on p.userid = u.userid where p.likes >= 100 group by 1 order by 2 desc, 1 asc limit 3 `"See full answer

Anonymous Moth - "As a Business Analyst, I would employ a cross-functional approach for implementing virtual debit and credit cards by collaborating closely with various departments. Initially, I would work with the market research team to understand customer needs and industry trends. With the IT and security teams, I would focus on designing a robust, user-friendly, and secure virtual card system. Collaboration with the legal department would ensure compliance with financial regulations. Partnering with the mar"See full answer

Vysali K. - "Limit and rank() only works if there are no 2 employees with same salary ( which is okay for this use case) For the query to pass all the test results, we need to use dense_rank with ranked_employees as ( select id, firstname, lastname, salary, denserank() over(order by salary desc) as salaryrank from employees ) select id, firstname, lastname, salary from ranked_employees where salary_rank <= 3 `"See full answer

Volderdore - "Population of Bangalore - 1.4 cr On an average 4 people live in 1 householde=> 1.4cr/4 => ~35L HouseHolds Out of the 35L Household, 30% household fall below poverty line are not interested in ordering online due to their own personal reasons prefers to visit to the hotel directly and eat instead of ordering online => Thus remaining is ~25L households out of the 25L households, assuming at least 20% of the households place one order on average on any given day will lead to 5L orders"See full answer

Michelle D. - "Approach: 1) Clarify question with interviewer When we say "app", I'd like to confirm the app for which user. For example, in Rides, we have an app for the rider and an app for the driver. For Eats, we have an experience for a customer purchasing food but I don't know of the experience for the restaurant. Could you confirm which users' experience you're describing when saying "app"? Let's say rider/customer purchasing food. Also is this a situation prior to launch of Uber Eats, wh"See full answer

Rachita D. - "I will start with making sure that I have a clear understanding of Medium and how it works. I will ask the interviewer to fill in any gaps in my knowledge of Medium. Medium is a platform for novice, and professional writers to express/share their opinions readers to read about subjects that matter to them the platform has been running for some time (6-7 years), so it is relatively mature (this confirms that Medium has found a product-market fit) Here is my high-level structure for answeri"See full answer

Kshitij A. - "The question is bit vague (I guess deliberately) so I believe firstly we shall ask questions and resolve ambiguity. Some initial questions could be : 1) Is this one time activity or something that should be done on continuous basis. If continuous basis then at what frequency. 2) How much staleness is acceptable in SYSTEM Y data 3) Are there any limitation in SYSTEM Y and is it fair to assume that we would need some kind of transformation to bring data into SYSTEM Y schema. 4) What kind of vol"See full answer

Sireesha R. - "Use Dutch National Flag Algorithm to solve the problem"See full answer

Indranil G. - "So we need to only consider Delhi within city limits? Yes And will we consider the big trees and not bushes? Yes Now inside Delhi total size is 1484 sq km means 2000000 sq km In this, there are 2% area which is lake or water so remove that will be (2000000-( 2000000 km*2%) )= 1960000 sq km In this area in Delhi, we have 20 % area where it is a park that means ( 1960000- (1960000*20%)) = 1568000 km area nonpark and 392000 km is a park area Obviously, in the park area, the density will b"See full answer