Interview Questions

Ekta M. - "Think of an operating system (OS) as being similar to a person managing household tasks like you! Imagine you have several chores to do around the house, such as cooking, cleaning, and praying. Each of these tasks is like an individual app. You, in this case, are responsible for ensuring all these tasks are completed smoothly. When you cook, you decide what ingredients to buy, how much of each, and which utensils to use. For cleaning, you assess what surfaces need to be cleaned, whether you need"See full answer

Aymen D. - "It would have been more interesting to focus on the system design rather than the Trie DS, Interviewee could have just mentioned the Trie and passed to things more important. Interviewee should have focused on the factors on which he wants to scale the API servers, popularity of the query parts ? region may be ? A hash of many factors ? Caches should have definitely be discussed, Cache eviction policies, Cache invalidation managements... Interviewee should have mentioned which kind of API pro"See full answer

Sankar S. - "We will not always have all the required data to make a decision quickly. We need to work with ambiguity effectively by tying up the available facts with intuition."See full answer

Anonymous Crab - "Super helpful video on metrics and experimentation design! However, I did not see any discussion on the actual algorithm improvement ideas. So it left me with these questions: 1) How would you actually improve the algorithm? (e.g. sorting based on amenities preferences, miles from airport, etc.). Of course, totally makes sense that we would test how that improvement moved our chosen success metrics. 2) Should we be choosing one metric or one set of metrics we want to optimize for when we impro"See full answer

Dadja Z. - "Traverse the array of points while computing the distance and pushing it to the heap. Then traverse again the heap and pop the k closest. Time O(nlogn) Space O(n)"See full answer

Teddy Y. - "class Node: def init(self, value): self.value = value self.children = [] def inorder_traversal(root): if not root: return [] result = [] n = len(root.children) for i in range(n): result.extend(inorder_traversal(root.children[i])) if i == n // 2: result.append(root.value) if n == 0: result.append(root.value) return result Example usage: root = Node(1) child1 = Node(2) chil"See full answer

Kirubel D. - "Clarifying Questions (Noun, verb, and adjective) Pixel The Pixel Phone or are we talking about ore on the software? Hardware or SoftwareINT: This can be applied to both areas Best Compared to other related phones on the market? And do we have a specific time frame in mind?INT: we don’t really have a specific time frame maybe within the next couple of years. Best means comparing to other phones out there. Market Best when it comes to a particular feature or overall the user experience within"See full answer

Bryan K. - "Did a quick 30 min writeup on this and I'm submitting before I review/edit. Success metrics for Spotify Podcasts Clarify Focus is on Spotify Podcasts, which are audio content posted by Spotify Content creators Spotify Podcasts exists across all devices Spotify as a company is at a mature state and is looking to enhance retention and revenue (monetization) Spotify makes money through ads, Spotify Podcasts too - Assuming that Spotify Podcasts has some sort of ad product where adv"See full answer

Elle Z. - " why do we want to improve the DMV? we’re a startup and we want to improve the experience at the DMV what is the DMV? my assumption is that this is for the US only, and is the department of motor vehicles. and this is where folks go to get IDs, register their cars, etc. is that correct or am I missing anything about what the DMV is? is there a timeframe to launch? are there any other constraints that I should be aware of? context: what is the DMV - the DMV is a something of a"See full answer

Nimish J. - "The health of the product backlog can be determined by considering the following factors - Is the product backlog prioritized? Will each backlog be easily picked up by the engineering team i.e. does it have all the required details such as user story, acceptance criteria, and effort estimates? No items coming back to the product backlog from the sprint backlog due to incomplete development or bugs No of items moving to the "Done" state from the product backlog in each sprint A"See full answer

A G. - "Clarification Qs: What does "split" mean here? - split the UI and if so how (through tabs?) What counts as "media" - clarified already What is prompting us to consider this change? - any negative feedback from the users/ decrease in certain Newsfeed metrics like engagement etc/ any particular business goal? is this across or platforms eg desktop/mobile ? Is this for all regions? Mission of FB: Fb's mission is to bring people closer together by enabling them to build communiti"See full answer

San S. - "How might the system design change if it is limited specifically to a web/mobile use case?"See full answer

Akshay J. - "Started by asking clarification questions regarding design constraints and desired features. Break down the into re-usable components - HeroImg and Carousel (with 3 images rendered) Code the components and managed the state for both in the parent component."See full answer

Ashutosh K. - "Imagine you're a PM for Mastercard. Design a product for restaurants to help them transition to a purchase order (PO) system that reduces their labor costs Mission & Vision : Mastercard is a payment processing fintech company, it has different payment service & products ex credit/debit cards etc. Mastercard vision and mission to to connect the world financially making payment process seamless across different industries. Clarifying questions : What type of restaurants on basis of revenue we"See full answer

Hyder A. - "Control plane has few component, it's like the brain of the cluster, the data plane is the work horse, CP has etcd, api-server, DP has kublet and kube-proxy"See full answer

Amit A. - "What are you strengths -: My strengths would include my eagerness to learn. This allows me to be open to new projects, roles and products and I can give my 100% to achieve the goals expected of me Other strengths would include my collaborative approach to work. I believe a team can achieve tremendous success if shares a common goal, respects other's opinions and contribution and is built on fundamental of trust Finally my biggest strength would be my commitment and passion to solve the custome"See full answer