Interview Questions

KittyKat - "I’d discuss definition of keywords: UPI ( service ) and what does revenue mean in UPI Assume goals - Increase 50% by the next one year Geo - India User Users to Users ( P2P ) Users to Merchant ( P2M ) Merchants to Merchant (small-scale UPI ) Picked User Segment - Users to Merchant ( P2M ) Pain points Subscriptions Tap on pay Frauds / Trust issues Upper cap 1L No Cost EMI / EMI on UPIs Credit on UPIs Spending Insights Integrations with devices - smartwatches, smart TVs, sm"See full answer

Arthur Y. - "Clarifying Questions: What are Discovery features on IG? My assumed answer: posts of followers you don’t already follow that you see on the Discovery tab of IG. The posts consist of video clips, IGTV posts, and pics. User can browse through endless scroll of posts, and can filter by category (e.g. sports, comedy, etc.) on the Discovery tab. Exclude IGTV and IG Shopping, which can also be accessed by Discovery tab, and just focus on Discovery of users you don’t already follow as"See full answer

Bhuppi S. - "To measure the success of the WhatsApp engagement and retention is crucial along with monitiozation. So, i will make sure following metrics:** Daily Active Users (DAU) and Monthly Active Users (MAU): DAU and MAU are critical metrics for understanding the scale and engagement level of the user base. A healthy ratio between DAU and MAU (known as stickiness) indicates strong user retention and habitual use. Message Sent/Received Volume: The volume of messages sent and received is a d"See full answer

Michael B. - "Write a function which Caesar ciphers all the strings so that the first character is "a". Use ascii code points and the modulo operator to do this. Use this function to create a hashmap between each string and the CC-a string. Then go through each key:value pair in the hashmap, and use the CC-a ciphered value as the key in a new defaultdict(list), adding the original string to the value field in the output."See full answer

Dr. chantel P. - "Currently, I work in banking fraud detection. Recently, my teammate and myself were asked to assist the Check Deposits team in enhancing their fraud detection ML solution by evaluating new data sources and eliminating past data sources for possible lift. We retrieved data from Hadoop and Netezza databases including deposit transaction data, mobile & computer device, authentication logs, account balance, and customer demographic data. We then created new and recreated old features including tem"See full answer

Shatabdi P. - "def lowestearningemployees(employees: pd.DataFrame) -> pd.DataFrame: selectedcolumns = employees[['id','firstname','last_name','salary' ]] sorteddf = selectedcolumns.sort_values(by='salary', ascending=True) return sorted_df.head(3)"See full answer

Kiley S. - "Measure Success of FB rooms. First I would like to clarify my understanding of the product: FB Rooms is a video call product similar to zoom in which a user can create a room and then invite people to join either with Facebook, if they are already friends or with a link or invite. Able to use filters and virtual backgrounds Now that we have aligned on the understanding of the product, I would like to think about the goals for the product. Goals: Business goals: Rooms was FB’s"See full answer

Anonymous Wombat - "Was the statement very similar to the leetcode or was it changed and only the main idea remained?"See full answer

Neelesh K. - "Grow market share of Bing by 5% Clarification: Are we focusing on a certain geography or Region where market share has to be increased? – Assume - All Regions Are we focusing on a particular device or platform? – Like Desktop/Laptops, Mobiles/Tablets, IOS/Android – Assuming all What is the Goal of increasing Market Share? – Assuming new users and driving usage among existing users. Do we have any user segment in mind or am I free to choose? – Assume you can choose Microsoft’s Mission"See full answer

Ashvini B. - "Clarifying Questions: What's the goal of this feature? I am assuming the goal is to improve the experience. 2) Are we focused on any specific brand? Tesla, Waymo? - I am assuming in general 3) Market - US 4) For the purpose of this question, I am assuming elf-driving cars are fully safe/autonomous and doesn't need any attention from the users to reach from point A to B. Revised problem statement - Design a feature for self-driving cars to improve the experience. User-segments: People who use i"See full answer

Asset T. - "Ask clarifying questions: There are a few different products within Coinbase platform - Coinbase, Coinbase Pro, Coinbase Wallet. Which one would you like me to focus on? Let’s assume it is Coinbase main app Coinbase has both desktop and mobile apps - is it ok if I focus on one of them first, and if time permits, extend it to another? Let’s assume we focus on the mobile version Coinbase is available in 100+ countries, can I focus on the US version? Let’s assume yes. Is"See full answer

Rustam - "There are number of ways where an app could lose users. I would try and speak with the following teams to figure out the issue. Data Team - I'd ask data team to see if there are any drops in the existing game funnels. There could have been an issue in game design. Potentially players could have gotten stuck on a super hard level and left or flew through a puzzle that was too easy, and also left. Essentially, figuring out the progression curve of the game, which often times can lead to play"See full answer

Takashi M. - "Me: First of all, I’d like to have some clarification about this project. Me: What is the current product line design of the vending machine? Is this a traditional vending machine? Customers pay money cash or credit card, and select products and receive the product. Interviewer: Yes, that is the correct assumption. We make vending machines for canned drinks and bottled drinks. Another product line is for selling small packaged snacks. Me: What is the goal of this project? Is"See full answer

Darpan D. - "Clarifying and assumption When we say financial security, are we talking about authentication, fraud detection or money laundering? Assumption: Fraud detection. Focusing specifically on transaction-level fraud. Is this an internal AI implementation or an external third-party service we provide to multiple financial businesses? Assumption: External Third-party AI financial security product. Requirements Need to detect when fraudulent transactions happen. **Detection stra"See full answer