Top Google Interview Questions

Anonymous Flamingo - "Design a washing machine for Google Step 1: Building Context through clarifying questions Are we looking at building a complete washing machine(new line of business) or a connected app for washing machine like Android Auto? Any specific geography to look for Goal? Increase usage of any specific google product or introduce smart white goods hardware Step 2: Target users Individuals Single Family Couple Hotels Students Laundromats **Apartments/Studen"See full answer

Tara J. - "I would like to speak loud to narrow the scope of this question so I can be effective in identifying a solution to the problem on hand. Hope that is OK. You mentioned, “Re-design the airport experience”. Is there a goal for this re-design exercise? Some top goals that come to my mind are the following. Please guide me so I can set it and we can proceed from there. “Increase the number of passengers who travel to and from this airport” “Improve customer satisfaction” **“Get in"See full answer

Chitapuram N. - "Since there is a need for the data to be accurate and consistent without any latency to allocate a spot, can't the data be synchronously synced to replicas after every write as the number of writes are not many per min, instead of read lock phenomena Let me know if i am on a wrong thought here."See full answer

Mark - "Questions: Should we consider US or Global? Is there any existing market insights/research around driverless cars adoption? Can we assume that driverless car technology is production / public ready by 2025? Is this focus on commercial or consumer use? Assumption: Let's look at US to start for our estimation since Driverless car regulation and adoption trend will probably differ per country Let's also assume we want to estimate market size for driverless cars in 2025 for consume"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

Daniel P. - "Okay, so I understand the question: "how does Google Maps compute estimated time of arrival"... There are a couple scenarios when ETA is calculated: planning a future journey, planning current journey. Can we assume scope to the current journey? The learnings will likely be transferable. User inputs to ETA include origin, destination, and route chosen. Let's assume first that the user has chosen an origin, destination, and a route chosen. We can come back to these assumptions later. The way I'"See full answer

Will P. - "There are several categories of ads that users may encounter on YouTube content pages, depending on the user's device and browser. To narrow the scope of my answer, I am going to assume this is a non-skippable, midroll video ad that is 15 seconds long, and shown to a non-premium desktop user in the US. The next step is to clarify the motivations behind the proposed feature. Are non-relevant ads harmful to the overall user satisfaction? Do users engage more with relevant ads? Are advertisers mak"See full answer

Debajyoti B. - "Clarifications: Which aspect of birthday are we thinking about designing a product for? Birthday reminder, birthday planning, event management or birthday wishing?- People are generally reminded of their birthdays by their friends/family, social media, their own self awareness, so its not a critical problem to solve Social apps like FB have birthday wishing features for the larger audience & for wishing friends/family, people would generally call or wish in person Manag"See full answer

Kai H. - "I have 2 product feedbacks. I think it has been mentioned by many users of the platform. Provide a text summary of the videos so that we do not have to watch through the whole interview practice Actually comment if the interview was good or not, currently we do not really know if the answer given is of high quality "See full answer

Anonymous Raven - "How often do we get 15 min to answer a question? Wondering isn't the expectation to answer this in 3-5 min?"See full answer

Manohar A. - "Some follow-up questions to correctly understand what "improve" means here? Is it to have: more riders, better user experience, monetization, more/new market penetration. Let's assume interviewer requested to choose whatever I prefer. I choose better user experience which might trigger other areas of improvement as well. Some more probing questions: To I need to consider USA only or any other country/region or global? Can I consider only popular on demand taxi service for this question? One wa"See full answer

Syed I. - "I use a data driven approach by ensuring there is a deep-dive on all alternatives. My approach to tradeoffs is around how to achieve the customer experience needed. I ensure there is an immediate path to green for a solution and a follow-up solution addressing the problem rightly."See full answer

Darren L. - "First I will set up the formula, second I will calculate each of the components then adding them up. Finally, I will talk about corner cases if any. 1, To begin with, I want to think broadly what could go into the equation. Bandwidth depends on number of devices at a time, so if a student use both laptop and phone at the same time then we have 2. Beside, grad students need internet for various reasons, such as checking email, searching on Google for information, watching lectures... Different a"See full answer

Satyam S. - "Reversing a linked list is a very popular question. We have two approaches to reverse the linked list: Iterative approach and recursion approach. Iterative approach (JavaScript) function reverseLL(head){ if(head === null) return head; let prv = null; let next = null; let cur = head; while(cur){ next = cur.next; //backup cur.next = prv; prv = cur; cur = next; } head = prv; return head; } Recursion Approach (JS) function reverseLLByRecursion("See full answer

Helen Z. - "Two clarification questions first! When we say quarters, are we assuming the quarters are stacked on top of each other, or are we measuring across the diameter? let's say they are stacked. And second question, is the height of the building just from the ground floor to the top of the building? yes. Okay, the key numbers we need to find then are the height of the building in feet, and the # of quarters that fit into a foot. First for the height of the building, the key numbers are heigh"See full answer

Ahmed A. - "He was really all over the place ? couldnt detect a structure to his answer felt like he was talking out of experience ."See full answer

Anonymous Bee - "Which structure would you suggest for such a question?"See full answer

Sameer A. - "Google’s Mission: Organize the world’s information and make it universally accessible. Google offers perhaps the most consequential set services available on the internet today - Search, Maps, Gmail, Drive, Docs, etc. These services reach billions of users across the world and they are all available for free. Google is able to give away these services for free because of how their business model works. Google’s Business Model: Google makes money from Ads. They offer perhaps the most"See full answer

Gaurav M. - "To convince leadership at Google to build a wristwatch for the elderly, it's crucial to present a compelling argument that encompasses user needs, market potential, and Google's strategic alignment. Here's a detailed proposal: 1. Understanding the User Needs Target Audience Primary Users: Elderly individuals, especially those with health conditions requiring monitoring and those living independently. Secondary Users: Family members and caregivers. **Pain Points"See full answer

Manjula R. - "Clarifying questions: What is the issue in the current algorithm? Not obvious Why do you want to improve? Engagement Are there any churn trend in YouTube viewers? Yes I see for last few months 10% reduction Do you have any support tickets from users regarding personalization? Not sure Have you released any new launches or bug fix into the existing algorithm? No What is the goal for this improvement suggestion? Engagement Are you targeting any specific region? NA Do"See full answer