Interview Questions

Aruna D. - "Assumption #1: the deal is signed and the customer now will being the process of moving to GCP Assumption #2 : the deal includes Iaas as well as Paas (App Engine) - moving apps from on prem to cloud Objective : Design a product that will help the customer onboard and successfully plan the move to GCP. Customer is using on premise and is new to cloud. Lets assume the tool should include the roadmap planning too ie decisions such as moving all vs some applications etc . As in any onboarding to"See full answer

Rafał P. - "def changeString(org: str,target:str) -> bool: lOrg = len(org) lTarget = len(target) \# They have to be equal in lenght if lOrg != lTarget: return False counter1 = Counter(org) counter2 = Counter(target) \# Counter internally iterates through the input sequence, counts the number of times a given object occurs, and stores objects as keys and the counts as values. if counter1 != counter2: return False diff = sum(org[i] != target[i] for i in range(n)) return diff == 2 or (diff == 0 and any(v > 1 f"See full answer

Ying T. - "def encode(root): if not root: return [] def dfs(node): if not node: return res.append(node.val) res.append(len(node,children)) for child_node in node.children: dfs(child_node) res = [] dfs(root) return res def decode(arr): if not arr: return None n = len(arr) i = 0 def dfs(val, children_count): if children_count == 0: return Node(val) cur_node = Node(val) cur_node.children = [] for j in range(children_count): nonlocal i i += 2 cur_node.children.append(dfs(arr[i], arr[i"See full answer

Ben G. - "Situation - A situation where I used creative / innovative thinking to eliminate frustration with a product was while I was working on Point of Sale and Polaris for Retail Design System for Shopify. Upon seeing our vision for the future of this design system, it lacked a lot of the visual polish and necessary components that would make the product much more competitive in the market - this included having a lack of an interaction model for what is tappable vs. not tappable as well as containmen"See full answer

Madina A. - "I’d assess a new feature launch by first checking if it achieved the goal we set before launch, whether that’s driving engagement, monetization, or retention. I would look at adoption and usage to see if users are discovering and repeatedly using it, the impact on the main KPI we targeted, and guardrail metrics to ensure there’s no negative effect on core product health like retention, crashes, or satisfaction. Ideally I would measure this through an A/B test or phased rollout and complement the"See full answer

SweetTaco - "Understand Wikipedia Wikipedia is an online encyclopedia that gives everyone access to unbiased and accurate knowledge and information. Current products: Website - people use Wikipedia to search and pull up articles written around a specific topic Integration with other products such as browsers and kindles - people highlight a word/subject and they can pull up the relevant wikipedia if it's available. Business model: It's a non-profit organization t"See full answer

Astha A. - "-- Write your query here with a as (select t.name as test_name, x.* from tests t join (select e.id, e.name, r.test_id, r.score from employees e join test_results r on e.id=r.employee_id) x on t.id=x.test_id), b as (select *, max(score) as mscore from a group by name, test_id) select id as employeeid, name as employeename, sum(mscore) as total_score from b group by employee_name order by sum(mscore) desc, employee_id;"See full answer

Jatin S. - "A project charter is a formal document that authorizes a project and outlines its objectives, scope, stakeholders, and key details. It serves as an agreement among stakeholders and provides a clear foundation for the project by defining what needs to be done and why. Typically, the project sponsor issues the project charter to the project manager or team, formally initiating the project. A project charter typically includes the following key elements to ensure a comprehensive and clear unde"See full answer

Scott S. - " Project Overview: Real-Time Risk Management System Objective The goal was to develop a real-time risk management system capable of processing and analyzing large volumes of trading data to provide near-instantaneous risk assessments. This system was crucial for enabling traders to make informed decisions while managing their exposure to various market risks in real-time. Complexity Factors 1. \\Data Volume and Velocity\\ \\High Throughput:\\ The system needed to ha"See full answer

Santhosh K. - "As an engineering manager, motivation is key to the success of the team. Here are some ways to motivate the team: Set clear goals: Clearly defined goals help team members understand what they're working towards and give them a sense of purpose. Offer growth opportunities: Providing opportunities for professional development and advancement can increase motivation and job satisfaction. Provide recognition and rewards: Recognising and rewarding team members for their hard work and achieve"See full answer

Jiin S. - "I would use A/B testing to see if the new feature would be incrementally beneficial. To begin the testing, we should define what's the goal of this testing. Let's say the new feature would increase the average number of trade by X. Then randomly assign the clients to two groups, control and test group. Control group doesn't see the new feature and the test group see the new feature. We could also stratified sampling if we want to make sure cover different customer segmentation. During this desig"See full answer

Valentin B. - "Let me first ask some clarification questions / make assumptions: Any specific geographic region? => USA How do we measure bandwith? a. Bandwith is the maximum internet speed required for our google maps servers to support all google maps traffic in the USA. At which point do we measure bandwith? => at the “entrance” of each google server center Do we talk about maximum bandwith required? a. Yes, the maximum BB required to support google maps in the USA (on side of Google) Outline: O"See full answer

Anonymous Puma - "Assuming for the US Segment by size of businessNumber of employees per business sizePrice per employee=Revenue Price per employee should decrease with a larger employee base. 30M businesses in the US Small Business 60% of businesses are small=18M Average number of employees=50 Price per employee=$5 Small Business Revenue=$2.7B Medium Business 30% of them are medium=9M Average number of employees=1000 Price per employee=$3 Medium Business Revenue=$8.1B Large Business 10% of th"See full answer

GalacticInterviewer - "Approach 1: Use sorting and return the kth largest element from the sorted list. Time complexity: O(nlogn) Approach 2: Use max heap and then select the kth largest element. time complexity: O(n+logn) Approach 3: Quickselect. Time complexity O(n) I explained my interviewer the 3 approaches. He told me to solve in a naive manner. Used Approach 1 had some time left so coded approach 3 also The average time complexity of Quickselect is O(n), making it very efficient for its purpose. However, in"See full answer

Anonymous Unicorn - "naive solution: def countprefixpairs(words): n = len(words) count = 0 for i in range(n): for j in range(i + 1, n): if words[i].startswith(words[j]) or words[j].startswith(words[i]): count += 1 return count using tries for when the list of words is very long: from collections import Counter class TrieNode: def init(self): self.children = {} self.count = 0 # To count the number of words ending at this node"See full answer

Anonymous Panda - " Communication between Mars and Earth is facilitated through various methods and technologies. The primary means of communication is through the use of space probes, particularly those equipped with powerful transmitters and receivers. Here's a general overview of how communication between Mars and Earth works: Deep Space Network (DSN): NASA operates the Deep Space Network, a global system of radio antennas located in California, Spain, and Australia. These antennas are responsible for sending"See full answer

Prabhav G. - "Assumptions and Clarification! What kind of blind person are we talking about ? Are they partially blind? Color Blind? Can Detect Light ? Can See blurry Images? Is the Blind person an adult, elderly or a teenager? Do they have any additional disabilities? Where will this Iron be used? At home? or perhaps one for travel? Do we have any limitation of resources? Assumptions- We are talking about a Complete Blind person who cannot see anything at all i.e Zero ability to se"See full answer