Interview Questions

David I. - "As I understand it, you’d like me to design a mobile native application (for iOS or Android) that helps people manipulate data similar to that of Microsoft Excel or Google Sheets. You can add and import data, edit it, run calculations, regressions, and generate charts and graphs. If it’s ok with you, I’d like to confine the design to iOS, and based on my knowledge of how a product manager uses a spreadsheet. I’d like to approach this problem by first identifying the goal of the app. Since we’r"See full answer

S K. - "Clarifying questions: Location: Mountian view campus. [Google has campuses across the world and for the interview purpose design the product for Mountian view campus] Assumption : Scope of the design is on-campus travel purpose between buildings. Product: Digital product Target Customer segments Meetings: Googlers who takes bikes to commute to a different build for meetings. a. Goal: On-Time for meetings Lunch or breakfast: Lunch spot co-ordinat"See full answer

A S. - "Clarified with interviewer: How it is used ? user will give facebook page of school as input What is the criteria for declaring school as duplicate ? same name and location used exposed APIs of parent service to create and maintain a inverted index [msg queue+spark]. Duplicate matching service will use elastic search [and filter out input school page]. Elastic will search and return results of school name and geospatial matching ."See full answer

Matthew K. - " function diffBetweenTwoStrings(source, target) { /** @param source: string @param target: string @return: string[] */ let dp = new Array(source.length+1).fill().map(() => Array(target.length+1).fill(0)) for (let i = source.length; i>= 0; i--) { for (let j = target.length; j>= 0; j--) { if (i === source.length) { dpi = target.length - j } else if (j === target.length) { dpi = sou"See full answer

Nils G. - "Bitshift the number to the right and keep track of the 1's you encounter. If you bitshift it completely and only encounter one 1, it is a power of two."See full answer

Divya K. - "You will need to start from Browser and go all the way up to Analytic systems and methods. Everything needs to be covered"See full answer

Adriel W. - "A DOS attack is meant to shut down a machine or network, making it inaccessible to its intended users. Some mitigations would be knowing what normal and abnormal traffic is. Deploy Firewalls for sophisticated application attacks."See full answer

Anonymous Beaver - "Clarifying questions: Reason to add this feature? No particular reason but let's assume it's an industry practice Any resource constraints? None for now I am assuming all furniture sold on the site is Wayfair's and not sold by third parties? Yes Approach: Industry, company and product profile and target audience Wayfair is a e-commerce company selling furniture. Direct competitors are other online only businesses like amazon. Indirect competition include physical stores like home depot/l"See full answer

Archit G. - "line/ trend charts are the simplest method to identify churn "See full answer

Exponent - "This question is a Diagnosis Question. Let's follow the template for answering Diagnosis Questions: Ask clarifying questions List potential high level reasons Gather context (with TROPIC method!) Establish a theory of probably cause Test theories Give a potential solution Summarize Ask Clarifying Questions Before we begin, it's important to ask clarifying questions if necessary. This question is quite straight forward so we may not have ma"See full answer

Anubhav A. - "I have not been at SFO airport but if it would have been a similar busy airport like Mumbai Airport I would use the following approach. Re-iterating the question: We are interested in improving the experience for users who drop their cars in airport parking. The experience in question starts from the moment they enter the parking area till the time they board the plane. Core metrics that define the experience for users: Time taken to board the flight from the time I reached at the parking z"See full answer

Anonymous Shrimp - "Let's assume that the school furniture includes Table, Chair and Whiteboard. Now, the first step is to find the number of students in the U.S Let's assume that the population of the U.S is 300M. Let's assume that Americans start education at 5 years old till 25 for undergrad. It means Americans spend 20 years of their life in school. Average living years for people is 80. 20/80 * 100 = 25%. It means 25% of the American population attends college. 25/100*300M = 75M. So, there are 75M students"See full answer

Varun J. - "Timeline and trends analyze period when the CTR was down Check external factors Seasonality and holidays Competitive factors Industry-wide changes Ad performance analysis Ad copy Product feed quality Pricing Promotions and discounts Audience targeting and segmentation Specific demographics? User segment? Device across mobile, desktop, and tablet Ad placement and auction insights Anything changed with ad placement?"See full answer

Idan R. - " read_dir(path: str) -> list[str] returns the full path of all files and sub- directories of a given directory. is_file(path: str) -> bool: returns true if the path points to a regular file. is_dir(path: str) -> bool: returns true if the path points to a directory. read_file(path: str) -> str: reads and returns the content of the file. The algorithm: notice that storing all the file contents' is too space intensive, so we can't read all the files' contents to store and compare with each"See full answer

Umaira K. - "If I get to live my life again I will try to be more confident, it took me a life time to get some confidence and to be what I am today, I ll try to be less dependent on others, I ll work for women empowerment."See full answer