Technical Interview Questions

Vaibhav C. - "To determine if a graph is not a tree, you can check for the following conditions: Presence of cycles: A graph is not a tree if it contains cycles. In a tree, there should be exactly one unique path between any two vertices. If you can find a cycle in the graph, it cannot be a tree. Insufficient number of edges: A tree with N vertices will have exactly N-1 edges. If the graph has fewer or more than N-1 edges, then it is not a tree. Disconnected components: A tree is a connected graph, m"See full answer

Dileep D. - "Phishing Attack Scenario (High-Level) Attack Type: Phishing Goal: Steal user credentials Attack Vector: Fake email pretending to be a bank Target: End users Impact: Account takeover, financial loss Detection: Email filtering, user reports Prevention: User awareness training Multi-factor authentication Email security gateways"See full answer

Exponent - "This type of question is a Technical problem. Although you will not need to actually code the feature, it's important to understand basic technical concepts. Being able to cover these concisely with clarity shows you're an effective communicator. Here, we'll go over the broad technical steps needed to implement a basic reactions feature on Facebook. Briefly, the steps required are the following: Migrate the database to support reactions Write API code to be able to react to a post, and"See full answer

Hamilton D. - "no"See full answer

Shivam B. - "The Critical Rendering Path (CRP) refers to the sequence of steps that a web browser takes to convert HTML, CSS, and JavaScript into a fully rendered webpage. CRP highlights the processes that can slow down the time it takes for a webpage to become interactive for users."See full answer

Anubhav A. - "Clarifying questions: Are we taking about a personal parking lot or a public parking lot Do we have an objective in head for this lot -> Make money? Public parking lot from govt body Do we have a particular location in head for this -> basement, outside some building or on the roof Are we particular about the number of vehicles it can take up? Are we particular about the kind of vehicles that it can take up? (2 wheelers, 4 wheelers, heavy weight 4 wheelers) Taking a few assumptions:"See full answer

Wizzy B. - "URL> DNS over UDP> IP address > TCP handshake > HTTP(SSL handshake) req, responses, websites architectures for any query DB, servers."See full answer

Anonymous Bobcat - "Use a mapping to store number characters to possible meaning, iterate through the numeronym matching all digits with their representation"See full answer

Abdurhman M. - "Solving current problems by considering what would have happened if the past had been slightly different."See full answer

Sunny G. - "https://en.wikipedia.org/wiki/Operational_transformation"See full answer

Ian R. - "You might build a product like this a few ways. I think you'd definitely want a temperature sensor device (maybe like a TMP422, or maybe there's a different one that is standard for wearables) that was worn by the individual. As far as tracking social distance, my answer here is more dependent on the state of the art of robust (wearable) distance measurement. Maybe there's something available better than ultrasonic sensors, maybe there's some kind of electromagnetism based solution that isn't in"See full answer

Scott S. - "As engineering managers, it’s our obligation to prioritize and manage technical debt properly. However, achieving the correct mix between reducing technical debt and providing new features while meeting deadlines can be fairly tough.To manage technical debt efficiently, it’s vital to first understand how to detect it inside your projects. One way to do this is by doing regular code reviews and encouraging your team to share any concerns or areas where they feel the codebase may be improved. This"See full answer

Shahid K. - "Asked clarifying questions, this was similar to box. Took a minute to gather thoughts. Came up with a structured approach. Focused on use cases, prioritized it. They wanted to focus on security aspects, MFA, simultaneous read/write operations, etc."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

Raymond W. - "Aim of compression is to reduce the file size and bandwidth consumed in transmission in order to preserve the quality of the image or text as experienced by the consumer/user. Text compression typically uses a library to act as a key for words, either words that repeat in the same document or words that are commonly presented in all documents. And maybe even word parts. Key points are that 1. it tends not to be lossy, 2. is simple/fast/consumes relatively little memory, 3. is pretty standard"See full answer