Interview Questions

Nikunj V. - "OLTP (Online Transaction Processing) and OLAP (Online Analytical Processing) are two types of data processing systems, each designed for specific purposes in the context of database and data warehouse environments. OLTP (Online Transaction Processing):Purpose: OLTP systems are designed to manage and handle high volumes of transactions, such as inserting, updating, and deleting data. These systems are typically used in day-to-day business operations. Characteristics: Handles small, si"See full answer

Aiswarya R. - "Use voice recognition system to interact"See full answer

Vincent T. - "Google Maps has achieved remarkable success due to several key factors that have set it apart in the realm of digital mapping and navigation services. There are a few crucial reasons behind its success: Comprehensive and Accurate Data: Google Maps has a vast database of geographic information, including detailed maps, street views, and satellite imagery from all around the world. It provides accurate and up-to-date data on roads, landmarks, businesses, and other points of interest, allowing u"See full answer

Sarabjeet S. - "Clarifications: Who are we? Google, US context, no constraints, no specific type of mw, at home or work? home Vision: Enable healthy and happy living through delicious, healthy and safe food quickly & easily Goal: Engagement (repeated use) User Segments (JTBD): Prepare food at home regularly Prepare food at home occasionally Make/eat food at home rarely/never Pain points: Don’t know how to cook Don’t have time to get ingredients **Don’t have time to"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

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

Jeff M. - "At Evernote and Wise, I've created a personalized approach for working more efficiently I've taught to coworkers with either our own proprietary software and off the shelf software. With Evernote, I did this by creating a hyper personalized templates for responding to customer concerns. With Wise, it's been a reworking of their traditional way of approaching Due Diligence and use of resources"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

Exponent - "This is a Technical question. It tests your ability to understand high level technical concepts. Even though your job won't have any coding involved, you'll still need to understand these concepts. Being able to cover all these topics with clarity communicates confidence in your interviewer. Unfortunately, there's no formula for technical questions, but some general tips are: Use analogies when you can Break your solution into clear, bite-size steps Don't be afraid to use examples to b"See full answer

Tanshi T. - "How many people are using the shuttle service? what are the stops for the service? What time does the shuttle service run? How many people are driving versus the shuttle service? "See full answer

Alan T. - "The difference between convex and nonconvex functions lies in their mathematical properties and the implications for optimization problems. Convex Functions:A convex function has a shape where any line segment connecting two points on its graph lies entirely above or on the graph. This property ensures that any local minimum is also a global minimum, making optimization straightforward and reliable. Convex functions are critical in machine learning and optimization tasks because of th"See full answer

Lucas G. - "I'd recommend to adjust p-values because of the increased chance of type I errors when conducting a large number of hypothesis. My recommended adjustment approach would be the Benjamini-Hochberg (BH) over the Bonferroni because BH strikes a balance between controlling for false positive and maintaining statistical power whereas Bonferroni is overly conservative while still controlling for false positives, it leads to a higher chance of missing true effects (high type II error)."See full answer