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Home / Interview Subjects / System Design
WithoutBook LIVE Mock Interviews System Design Related interview subjects: 74

Interview Questions and Answers

Know the top System Design interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Total 30 questions Interview Questions and Answers

The Best LIVE Mock Interview - You should go through before interview

Know the top System Design interview questions and answers for freshers and experienced candidates to prepare for job interviews.

Interview Questions and Answers

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Intermediate / 1 to 5 years experienced level questions & answers

Ques 1

Design a URL shortening service like bit.ly.

The system would involve a database to store mappings of short URLs to original URLs, a front-end for user input, and a back-end to handle requests by redirecting to the original URL.

Example:

A user shortens 'https://www.example.com/page123' to 'http://bit.ly/xyz'.
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Ques 2

Design a chat application like WhatsApp.

The system involves a messaging server to handle real-time communication, a database to store messages, and end-to-end encryption for security.

Example:

User A sends a text message to User B, and the message is delivered in real-time.
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Ques 3

Create a ride-sharing system like Uber.

The system involves a mobile app for users and drivers, a backend to manage ride requests, and a geospatial database to match riders with drivers.

Example:

A user requests a ride, and the system matches them with a nearby available driver.
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Ques 4

Design a recommendation system for an e-commerce platform.

The system uses collaborative filtering, content-based filtering, or hybrid methods to recommend products based on user behavior and preferences.

Example:

A user who bought a camera may receive recommendations for related accessories.
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Ques 5

Design an authentication and authorization system.

The system involves user authentication through credentials, token-based authorization, and proper session management to ensure secure access to resources.

Example:

A user logs in with valid credentials and receives a token for subsequent authorized requests.
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Ques 6

Build a social media analytics system.

The system collects and processes data from various social media platforms, uses a storage system for analytics, and provides insights based on user engagement.

Example:

An organization tracks the performance of its social media campaigns using analytics provided by the system.
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Ques 7

Create a job scheduling system.

The system manages and schedules jobs, allocates resources, and ensures efficient utilization of computing resources.

Example:

A user submits a batch of tasks, and the system schedules and executes them based on priority and available resources.
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Ques 8

Build a recommendation system for music streaming.

The system uses collaborative filtering, genre analysis, and user preferences to recommend music based on individual tastes.

Example:

A user listens to a few songs, and the system suggests additional tracks matching their music preferences.
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Ques 9

Create a caching system for a web application.

The system caches frequently accessed data, utilizes expiration policies, and ensures cache consistency for improved performance.

Example:

Web application fetches user profiles from the cache instead of the database for faster response times.
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Ques 10

Build a notification system for a mobile app.

The system sends push notifications, manages user preferences, and ensures delivery reliability with appropriate queuing mechanisms.

Example:

A user receives a real-time notification when a new message is received in the app.
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Ques 11

Build a content recommendation system for a news platform.

The system uses natural language processing, user behavior analysis, and collaborative filtering to recommend articles based on user interests.

Example:

A user reads news articles, and the system suggests related articles from various categories.
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Ques 12

Design a high-throughput logging and monitoring system.

The system collects logs, metrics, and traces from various services, stores them centrally, and provides tools for monitoring and analysis.

Example:

System administrators monitor server performance and troubleshoot issues using logs and metrics provided by the system.
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Ques 13

Build a system for managing user preferences and personalization.

The system involves storing and updating user preferences, using machine learning algorithms for personalized recommendations, and ensuring data privacy.

Example:

A user customizes settings in an app, and the system tailors content and features based on those preferences.
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