Interview Questions

Naga M. - "Based on the required significance level (usually less than 5%) and based on the test power (usually 95%?), I will calculate the required sample size. Once I get the sample size, then I will do the A/B testing until I meet the sample size."See full answer

Exponent - "This is a Strategy Question, which asks you to justify high-level business decisions and strategy. This could be confused with an expansion problem, but it's only asking for the risks. You should be thorough with the risks and identify as many as possible. Let's go over one possible solution: > Expanding to China could be a huge opportunity for Netflix, but it's definitely risky. I'd love to go over a few risks that we should consider. To me, the biggest risks are:Censorship > Chinese compet"See full answer

Sim S. - "Started with user-groups to identify the differences world wide: speed of internet, how high end devices are The interviewer just wanted to dive into the questions of latency & the technical fast. I then said let's separate out server vs client. On server side, cannot have australian users hitting california servers for data. So must be some sort of global availability of caching. And ensure rapid read out of that cache so something like a redis solution would help. Then switch gears to cli"See full answer

RestlessMonk - "I prefer to build a team of complementary skills than being skewed on one aspect. And generally avoid an all rockstar team. Technically, this means we will have atleast one rockstar for one skill and it is acceptable if that rockstar is just an avg performer on other skills Which person gets indexed more on which skill is a time to time exercise depending on needs of the org, product charter and career aspirations of the person."See full answer

Negar H. - "SW: Headway (Audio book app) Goal: Track user engagement with the product. (Analytics) To Track user engagement with the product I would first define the user actions defined as user engagement, and then define quantitative metrics to track user behaviour. User actions -> engagement: Actions: User Plays an Audio book (following by user's retention) User uses Next chapter button to continue listening User marks Audio books as favourites User shares Audio books Metrics: DAU & 2."See full answer

Lucas G. - "I would conduct a sample z-test because we have enough samples and the population variance is known. H1: average monthly spending per user is $50 H0: average monthly spending per user is greater $50 One-sample z-test x_bar = $85 mu = $50 s = $20 n = 100 x_bar - mu / (s / sqrt(n) = 17.5 17.5 is the z-score that we will need to associate with its corresponding p-value. However, the z-score is very high, so the p-value will be very close to zero, which is much less than the standa"See full answer

Anonymous Panda - "Goal: The goal of the product is to create a virtual communication system that enables the CEO/Executives of Google to have realistic in-person interactions with people located in different parts of the world. Identifying Different Users: CEO of Google Business executives and professionals Selecting Right User: The primary user for this product is the CEO of Google who needs to have a virtual communication system that can facilitate face-to-face interactions. Defining Features: High-q"See full answer

Atharva P. - "Problem: Facebook Jobs has seen a 20% increase in job listings, but employer response time to applicants has decreased by 20%. Goal: Investigate and address the decrease in employer response time. Assumptions and Clarifying Questions: Scope: Is this issue internal to Facebook or affecting external users? Timeline: Analyzing data from the past 6 months is assumed to be sufficient. Response Time Definition: Clarify the precise definition of "response time" (e.g."See full answer

Gourav G. - "Skeleton: Mission Goals and User segmentation User journey Metrics Pain points and opportunities experimentation Starting with Twitter's mission, "the power to create and share ideas and information without barriers", we are looking to empower people to be both consumers and creators. However, for the sake of this discussion, I want to focus on the consumer sides. As mentioned, our goal is to focus on user growth. But I want to understand if we are looking to acquire more 1s"See full answer

Amit S. - "Fast food service Good service application."See full answer

Rev - "Narrow down on a person (born in city childhood - school - college - work - retirement) Age: 0-5 = ignoring travel for this part (might travel with parents) 5-19 = weekdays school, weekends outings School distance 5 km , total = 10km (to & fro) (4 intersections * 1min(time spent) = 4 min/ day) 52 x 5 x 4 = 1040 mins ~ 15 hrs 15 * 14 yrs = 210 hrs Weekends 52 x 2 = 104 days * 0.3 = 30 days Trips = 10 km (8 intersections * 1min(time spent) = 8 mins) 30 x 8 ="See full answer

Abinash S. - "I checked the unittest is giving a False assertion as you can see in the colab notebook below. F FAIL: testsimple (main_.Conv2dTest) Traceback (most recent call last): File "", line 19, in test_simple self.assertTrue(torch.equal(output, torch.tensor([[[[ 5., 1.], [ -2., -10.]]]]))) AssertionError: False is not true"See full answer

P D. - "Cost Reduce data cost (google fi cost 10$ per gb while in india costs are pretty less than that) Can prompt to connect to closed wi-fi network if users has connected earlier Coverage In India, majority of the population lives in rural areas, need to solve for that Safety and Security Protect users from scamsters / malware /viruses etc. Net Neutrality Ensure that there is no bias towards google sites only"See full answer