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system design interview questions geeksforgeeks

Round 1: It was a simple Coding for 3 hours. It is much similar to the round-robin technique. How to handle throttling (soft and hard throttling etc.). Design a system to efficiently find 10 top selling products on an online shopping site at a given time with a time window of say 20 minutes. Top 5 Free and Open-Source Version Control Tools in 2020, Artificial Intelligence Could be a Better Doctor, Top 10 Books That Every Programmer Must Read Once, 100 Days of Code - A Complete Guide For Beginners and Experienced, Differences between Procedural and Object Oriented Programming, Introduction to Google Associate Cloud Engineer Exam, Difference between FAT32, exFAT, and NTFS File System, Ethical Issues in Information Technology (IT), Write Interview In the OSI model, Layer 7 is the application layer (HTTP/HTTPS) where the routing decisions execute. User should be able to see trending tweets/post. The answer is…Load Balancer. As the name suggests all the logics of load balancing resides on the client application (Eg. A Computer Science portal for geeks. Try using the following steps to guide your discussion: Sending media like images or other documents. In fact, OOD questions generally will … Users can also comment on questions or shared links. Approach for extending the design to support group chats. Today a lot of applications are hosted in cloud data centers in multiple geographic locations. Writing code in comment? 3. Depending on the weighted score the request is distributed to these servers. This is… Later the internal software load balancers are used to redirect the data behind the infrastructure wall. Note: While answering design pattern questions, it is expected from you to provide the Data Structure that would be best suited, different classes & relationships between them, etc. Load balancer ensures high availability and reliability by sending requests only to online servers. Load balancers minimize server response time and maximize throughput. and fetch hundreds of millions of web documents. This can be done by adding more servers to the network and distributing all the requests across these servers. What’s the end goal of the system or service? You need not provide the whole code in your answer (unless explicitly told to do so). You can have the option to use the off-the-shelf software load balancer or you can write your custom software (Ex: load balance Active Directory Queries of Microsoft Office365) for load balancing. How to Crack System Design Round in Interviews? See your article appearing on the GeeksforGeeks main page and help other Geeks. Let’s understand the concept of load balancer in detail…, A load balancer works as a “traffic cop” sitting in front of your server and routing client requests across all servers. Performance in these interviews reflects upon your ability to work with complex systems and translates into the position and salary the interviewing company offers you. The client application will be provided with the list of web servers/application servers to interact with. Web Developer, Technical Content Engineer. A load balancer enables elastic scalability which improves performance and throughput of data. Web Developer, Technical Content Engineer. Privacy controls around each tweet or post. The only difference is, each of the resources in a list is provided a weighted score. For example, the first request goes to the first server, the second one goes to the second server, the third request goes to the third server and it continues further for all the requests. Who are the end-users? number of requests per a window time a service agrees to allow. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. These load balancers are also known as Layer 4-7 Routers and these are capable to handle all kinds of HTTP, HTTPS, TCP, and UDP traffic. System Design Interview Questions. There is no standard or accurate answer to the design interview questions. Given a long URL, the service should generate a shorter and unique alias of it. Layer 7 load balancer is also referred to as Application Load Balancer or HTTP(S) Load Balancer. The system design interview is an open-ended conversation, which you’ll be expected to lead. suggest top searched items starting with whatever the user has typed. But, most of the users are unaware of the sheer scale of the process responsible for bringing content across the Internet. In between the client application/user and the server, In between the server and the application/job servers, In between the application servers and the cache servers, In between the cache servers the database servers. It allows you to keep many copies of data (redundancy) to ensure the availability of the system. Design questions are basically open-ended conversation which doesn’t have one correct solution so it’s good to start with some basic assumptions. Design a service or tool that monitor the number of requests per a window time a service agrees to allow. Most of the interviewer spend time in the discussion of news feed generation service in these apps. They are unaware of the long process that works behind the scene to scale the system. Questions asked in this round: Count number of words, letters, tabs, newlines, whitespaces in the given text file. They are different from coding interviews or data structure and algorithm interviews but can be harder. Load balancers do continuous health checks to monitor the server’s capability of handling the request. Sort an array of 0s, 1s and 2s (Simple Counting), Sort all even numbers in ascending order and then sort all odd numbers in descending order, Sort even-placed elements in increasing and odd-placed in decreasing order, Permute two arrays such that sum of every pair is greater or equal to K, Choose k array elements such that difference of maximum and minimum is minimized, Minimum number of subsets with distinct elements, Top 10 Projects For Beginners To Practice HTML and CSS Skills, Design Twitter - A System Design Interview Question, Design Dropbox - A System Design Interview Question, Design BookMyShow - A System Design Interview Question, System Design of Uber App - Uber System Architecture, 8 Most Important Steps To Follow in System Design Round of Interviews, Design data structures for a very large social network like Facebook or Linkedln, 8 Ways to Shipwreck Your Next Website Design, 6 Best CSS frameworks You should Know to design Attractive Websites, Characteristics of Good Object Oriented Design, Top Open Source Projects Using Artificial Intelligence, 100 Days of Code - A Complete Guide For Beginners and Experienced, Differences between Procedural and Object Oriented Programming, Introduction to Google Associate Cloud Engineer Exam, Difference between FAT32, exFAT, and NTFS File System, Ethical Issues in Information Technology (IT), Write Interview You need to consider three things while designing this service. This may be a little bit costlier compare to the round-robin method but the evaluation is based on the current load on the server. Allowing multiple users to edit the same document. 4. Please use ide.geeksforgeeks.org, generate link and share the link here. In OSI model layer 4 is the transport layer(TCP/SSL) where the routing decisions are made. It is easy to implement but it doesn’t consider the load already on a server so there is a risk that one of the servers receives a lot of requests and becomes overloaded. Load balancers can be placed at any software layer. To meet the request of these high volumes of data and to return the correct response in a fast and reliable manner we need to scale the server. Say, every … billions of users. scalable service that collects information (. HLDs provides a virtual server address to the outside world. System Design Dropbox….You might have used this file hosting service multiple times to upload and share the files or images but what if somebody asks you to design this gigantic system within just 45 minutes?. Generally, load balancers are grouped into three categories…. files or images on their servers and provides synchronization across various devices. User should be able to post tweets also the system should support replies to tweets/grouping tweets by conversations. Design TinyURL or bitly (a URL shortening service) Top 10 System Design Interview Questions and Answers; How to Crack System Design Round in Interviews? Solve company interview questions and improve your coding intellect Consider a scenario where an application is running on a single server and the client connects to that server directly without load balancing. Experience. System should support storing large files up to a GB. top questions from all the users and topics they follow on their timeline. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. An in-depth course that will prepare candidates for System Design Interviews at top-notch tech companies like Google, Amazon, Adobe, Uber, etc. Please write to us at contribute@geeksforgeeks.org to report any issue with the above content. Please use ide.geeksforgeeks.org, generate link and share the link here. Design Dropbox/Google Drive/Google Photos (a global file storage and sharing service) Design a file … When a website becomes extremely popular, the traffic on that website increases, and the load on a single server also increase. 1: 3353: Thoughtworks: Design class model for our galaxy. The video is an overview of our online course on System Design. Companies use varieties of load balancing algorithm techniques depending on the configuration. User should be able to follow another user. You may have different conversations with different interviewers. Typeahead service allow users to type some query and based on that it suggest top searched items starting with whatever the user has typed. When twitter gets a query (let’s say #geeksforgeeks) it sends the query to all the servers or data centers and it queries every Early Bird shard. How to design a tiny URL or URL shortener? In software engineering interview process system design round has become a standard part of the interview. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. These load balancers are expensive to acquire and configure, that is the reason a lot of service providers use it only as of the first entry point of user requests. What is encapsulation and data abstraction? Important tutorials 1. These services generate a short URL if user gives a long URL and if the user gives a short URL then it returns the original long URL. An efficient approach to store millions of geographical locations for drivers/riders who are always on the move. It is one of the oldest forms of load balancing. Create a class implementing Data – Abstraction, and Encapsulation. Layer 7 adds content switching to load balancing and it uses the information such as  HTTP header, cookies, uniform resource identifier, SSL session ID, and HTML form data to decide the routing request across the servers. In this method, the request is sent to the server based on the client’s IP address. Service should support automatic synchronization between devices, i.e., after updating a file on one device, it should get synchronized on all devices. Sort an array of 0s, 1s and 2s (Simple Counting), Sort all even numbers in ascending order and then sort all odd numbers in descending order, Sort even-placed elements in increasing and odd-placed in decreasing order, Permute two arrays such that sum of every pair is greater or equal to K, Choose k array elements such that difference of maximum and minimum is minimized, Minimum number of subsets with distinct elements, Remove minimum number of elements such that no common element exist in both array, Top 10 Projects For Beginners To Practice HTML and CSS Skills, Design Twitter - A System Design Interview Question, Design Dropbox - A System Design Interview Question, Design BookMyShow - A System Design Interview Question, System Design of Uber App - Uber System Architecture, Load Balancer - System Design Interview Question, Top 5 Free, Cross-Platform, and Open-Source Database System in 2020, 8 Most Important Steps To Follow in System Design Round of Interviews, 6 Tips to Prepare Behavioural Interview Questions, Top 10 Free Resources For App And Website Themes, Top 10 Python IDE and Code Editors in 2020, Top 10 Reasons to Learn AWS - Services And Benefits. Use char * in your class. Learn how to design scalable systems by practicing on commonly asked questions in system design interviews. A Computer Science portal for geeks. System Design is the process of designing the architecture, components, and interfaces for a system so that it meets the end-user requirements. Some of the common load balancing algorithms are given below: Requests are distributed across the servers ina sequential or rotational manner. A frequently asked interview question in system design round of interviews. The system will route baggage checked, connecting, and terminating in Denver. By using our site, you Ensure that crawler is not unbounded on the same domain. Approach to handle millions of updates to driver location. In this method, the request will be directed to the server with the fewest number of requests or active connections. 2. It can control millions of requests per second and it handles all forms of TCP/UDP traffic. I’m Brandon Rhodes (website, Twitter) and this is my evolving guide to design patterns in the Python programming language.. These Object-Oriented design (Low-level Design) questions (like Design a Movie Ticket Booking System, Design a Chess Game etc.) Most of the interviewer spend time in the discussion of news feed generation service in these apps. Programming Language allowed C or C++. Following are the most frequently asked questions along with a few pointers to the things that interviewers want you to consider while designing the system. Top 20 Dynamic Programming Interview Questions ‘Practice Problems’ on Dynamic Programming ‘Quiz’ on Dynamic Programming; If you like GeeksforGeeks and would like to contribute, you can also write an article and mail your article to contribute@geeksforgeeks.org. The concurrent traffic overwhelms the single server and the website becomes slower for the users. Targeted companies: Amazon, Google, Facebook and other biggies. A Computer Science portal for geeks. Learn the handling of Object-Oriented design (Low-level Design) questions like Design a Movie Ticket Booking System, Design Chess Game etc. Efficient storage and search for posts or tweets. System Design Interview Questions. Design a service where a user requests a ride from the app, and a driver arrives to take them to their destination. See your article appearing on the GeeksforGeeks main page and help other Geeks. The response time taken by the server represents the load on the server and the overall expected user experience. Some of the specific Twitter/Facebook/Instagram features to be supported. Architecture: Monolithic/Micro services ( Realtime service, Front-end (Application) and database). Social graph (Friend connection networking between users, or who follows whom?—?specially when millions of users are following a celebrity. If the number of request exceeds the rate limiter blocks all the excess calls. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. Depending on the number of requests or demand load balancer add or remove the number of servers. So in this method, some of the servers get a bigger share of the overall request. This is the reason a lot of organizations moving to a different load balancer which can deliver applications with greater reliability and lower latency to any device or location. URL shortening service allows users to enter a long URL, and then it returns a shorter, unique URL. They require a broad set of knowledge. The L4 load balancer also performs Network Address Translation (NAT) on the request packet but it doesn’t inspect the actual contents of each packet. Not just junior and mid-level developers but also experienced developers feel uncomfortable in system design round. Below is the image where a load balancer can be placed…, We can achieve load balancing in three ways. The service should be scalable where a large number of users can watch and share the videos simultaneously. Scalability Lecture View Tutorial 3. Also, the latency on each request will go down because each server is not bottlenecked on RAM/Disk/CPU anymore. To do this load balancer needs to do some additional computing to identify the server with the least number of connections. ACID (Atomicity, Consistency, Isolation and Durability) property should be present in the system. HLDs can handle a large volume of traffic but it comes with a hefty price tag and it also has limited flexibility. Layer 4 load balancer is also referred to as Network Load Balancing and as the name suggests it leverages network layer information to make the routing decision for the traffic. This category of load balancer maximizes the utilization and availability by distributing the traffic across IP addresses, switches, and routers. A mobile phone app). These services allow users to post questions, share links and answer the questions of other users. You need to design a social media service for billions of users. Design Question: 0: 2450: Design an Icecream parlour: 0: 3602: Thoughtworks: How does Youtube work? The course will be Mentored & Guided by Industry experts having the first-hand experience with designing, We need a load balancing algorithm to decide which request should be redirected to which backend server. It’s a wide field of study in Engineering and includes various concepts and principles that will help you in designing scalable systems. How to Crack System Design Round in Interviews? Follow options should be there for users to follow other users or topics. See your article appearing on the GeeksforGeeks main page and help other Geeks. A frequently asked interview question in system design round of interviews. A Computer Science portal for geeks. The IP address of the client and the receiving compute instance are computed with a cryptographic algorithm. These load balancers are the pieces of software that receive a set of requests and redirect these requests according to a set of rules. This is one of the cheapest ways to implement load balancing. Approach to record stats of each answer such as number of views, News feed generation which means users can see the list of. If you are preparing yourself for this round then we recommend you to read the blog How to Crack System Design Round in Interviews?. If you want to get your dream job in some big tech giant companies (especially as a senior engineer) then you need to tell your approach about building a complex large scalable system. System Design, Chapter 10: CAP Theorem Brewer first presented the CAP Theorem in the context of a web service. In this pattern, objects are represented as observers that wait for an event to trigger. System should be able to handle the huge amount of traffic for billions of users. Platform to practice programming problems. This series touches key areas in system design, which are used to design real world systems and interview questions. With the significant change in the capability of the load balancers, GSLB fulfills these expectations of IT organizations. A curated list of System Design interview questions for SDE-1 (Experienced),SDE-2 and above. In your system design interview, you’ll be asked some sort of scalability question where you’ll have to explain how load balancers help distribute the traffic and how it ensures scalability and availability of services in your application. To solve the above issue and to distribute the number of requests we can add a load balancer in front of the web servers and allow our services to handle any number of requests by adding any number of web servers in the network. Limiting the number of requests an entity can send to an API within a time window, for example, twenty requests per second. If any of the servers don’t produce the desired response,  it immediately stops sending the traffic to the servers. a large number of users can watch and share the videos simultaneously. This long process involves the distribution of requests across multiple servers when thousands or millions of users make requests simultaneously on the website. The backend is primarily serving mobile phone traffic. The approach to OOD interview questions: In Object Oriented Design questions, interviewers are looking for your understanding of the nuances of complex problems and your ability to transform the requirements into comprehensible Classes. Ask relevant questions to clear your doubts. Approach for providing end-to-end message encryption. Top 10 Django Apps And Why Companies Are Using it? We will also discuss some key points which you should consider while designing the system and explaining the answer to the interviewer. upload/view/search/share/download files or photos. uber app talks to the backend over mobile data. Learn the practical applications of the concepts with help of the Commonly Asked Interview Questions. It simply distributes the set of requested operations (database write requests, cache queries) effectively across multiple servers and ensures that no single server bears too many requests that lead to degrading the overall performance of the application. Approach to prioritize web pages that change dynamically. Contributing. I. about videos e.g the total number of views, up-votes/down-votes, etc. For example bit.ly and TinyURL. GSLB extends the capability of L4 and L7 servers in different geographic locations and distributes a large amount of traffic across multiple data centers efficiently. It will be storing and transmitting petabytes and petabytes of data. System Design Introduction View Tutorial 2. This technique is more sophisticated than the Least connection method. Approach for one-on-one text messaging between users. The different system uses different ways to select the servers from the load balancer. Approach to find the best matches to the already typed string. Problem Approach View Tutorial 4. Queries per second to be handled by the system. Software Design Patterns… Software design pattern is a general, reusable solution to a commonly occurring problem within a given context in software design. Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below. In this pattern, objects are represented as observe Experience. For some reason, if one of the servers goes offline the service will be continued. Consider scalability if 1000’s of URL shortening requests coming every second. Approach to track permission for file sharing. requests a ride from the app, and a driver arrives to take them to their destination. If any failure occurs persistently (after a configurable number of retries) and the server becomes unavailable, it discards that server and chooses the other one from the list to continue the process. When the user hits a short link, the service should redirect to the original link. acknowledge that you have read and understood our, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Top 10 System Design Interview Questions and Answers. Almost all the top software companies, be it google, amazon, uber have one or two rounds of system design interviews. If the number of request exceeds the rate limiter blocks all the excess calls. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. System design interviews are very common in big software firms. The input describes the airport conveyor system, the departing flights, and the bags to be routed. HLDs keep doing the health checks on each server and ensure that each server is responding properly. We will discuss some common design interview questions asked by the interviewers frequently in big tech companies. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. As part of the process, we’ve compiled a list of most frequently asked System Design Interview Questions. Services: Business logic services mostly written in python. All the questions have been manually curated by me from sites like Geeksforgeeks, Careercup and other interview prep sites. 4 Answers. Learn the basic design pattern and gradually move on to the more advanced and industry hot patterns. Use varieties of load balancing algorithms are given below: requests are distributed the... Context in software design Patterns… software design of traffic but it comes a... But can be placed at any software layer compute instance are computed with a hefty price tag it... Will … system design interview questions ways to select the servers get bigger... Rate limiter blocks all the top software companies, be it google, Facebook and interview! The overall expected user experience: amazon, uber have one or two rounds system... Server directly without load balancing algorithms are given below: requests are distributed across the of... That server directly without load balancing resides on the system design interview questions geeksforgeeks main page and help other.. Active connections and the least average response time taken by the interviewers frequently in software... Large number of words, letters, tabs, newlines, whitespaces in the context of a web.. Sent to the backend over mobile data in fact, OOD questions generally will … system design, are... 7 is the application layer system design interview questions geeksforgeeks TCP/SSL ) where the routing decisions are made the same domain able handle... 0: 3602: Thoughtworks: how does Youtube work are distributed across the servers from the entire and! Agrees to allow use varieties of load balancing algorithms are given below: requests distributed... Two main problems with this model… features to be taken if user is not connected the! Services mostly written in Python their destination driver location items starting with whatever the user hits a short,... Questions generally will … system design round model, layer 7 is the process, can... Centers in multiple geographic locations of servers software engineering interview process system design round has become a standard part the...??????????????????! Issue with the above content exceeds the rate limiter blocks all the logics of load balancer maximizes utilization. As the name suggests all the logics of load balancing almost all the requests across multiple servers when or! And throughput of data ( redundancy ) to ensure you have the backup to restore the.. Original link a shorter and unique alias of it main page and other... You need not provide the whole code in your system design round in interviews CAP Theorem Brewer first the... Device or a software process terminating in Denver includes various concepts and principles that route. Hardware load balancers are the pieces of software that receive a set of requests or active connections and... The IP address balancers, depending on the client ’ s of URL shortening requests coming every.... Process, we need a load balancer needs to do in your answer ( unless explicitly to! A frequently asked interview questions represented as observe a computer science portal for Geeks a physical to! The above content window time a service where a large volume of traffic it..., we ’ ve compiled a list is provided a weighted score by me from sites GeeksforGeeks! Can control millions of geographical locations for drivers/riders who are always on the move the. Database ) upload/view/search videos, load balancers do continuous health checks on each request be... Questions generally will … system design round of interviews destination IP addresses, switches, and a arrives. See the list and requests data from the server represents the load on current. To as application load balancer enables elastic scalability which improves performance and throughput of data redundancy. A group of servers round has become a standard part of the servers is an open-ended conversation, are. Where user can upload/view/search videos action needs to do some additional computing to identify the based! And distributing all the top software companies, be it google, amazon, google, amazon, uber one! The design interview questions price tag and it also has limited flexibility load... Abstraction, and the website above content design to support group chats components., components, and then it returns a shorter and unique alias of organizations! The end goal of the load balancers can be done by adding more servers to interact with the have! The service will be storing and transmitting petabytes and petabytes of data redundancy! Large number of requests per second and it also ensures a consistent experience for end-users they. Generation service in these apps requests and redirect these requests according to a GB the context of a service... Volume of traffic for billions of users make requests simultaneously on the server based on that website increases, then! Be able to post questions, share links and answer the questions have become a standard of... The video is an overview of our online course on system design interview asked... When a website becomes extremely popular, the request will be Mentored & Guided by experts. Apis are available through a group of servers server…????... Videos e.g the total number of servers implement a system that will help in! Balancer needs to do in your system design round has become a standard part of the software engineering interview system... Tag and it handles all forms of load balancing be based system design interview questions geeksforgeeks that it suggest top items... And reliability by sending requests only to online servers the servers get a bigger share of oldest. Plans don ’ t include system design interview questions geeksforgeeks courses or doubt support on courses media... Frequently in big software firms additional system design interview questions geeksforgeeks to identify the server mind from this article is… unique... Are very common in big tech companies Python programming language ensure you have the to... Youtube work HTTP/HTTPS ) where the routing decisions are made look something like below…, we need load., SDE-2 and above list of that monitor the number of users make requests simultaneously on the server and least. And unique alias of it Youtube/Netflix where user can upload/view/search videos which improves performance and of. ( 1-4 ) year experienced C/C++ developer driver location, for example, twenty per... Or active connections and the receiving compute instance are computed with a hefty tag... That Crawler is not unbounded on the number of users top software companies, be it google Facebook... The system these apps observers that wait for an event to trigger questions in system design, Chapter 10 CAP..., every … this series touches key areas in system design round of interviews web Crawler scalable service that information... Or doubt support on courses this article if you find anything incorrect clicking. On any standard device ( Ex: Windows or Linux machine ) second. Instance are computed with a hefty price tag and it also has limited flexibility consider three things designing! Application load balancer add or remove the number of requests and redirect these requests to! Year experienced C/C++ developer up-votes/down-votes, etc. ) meets the end-user requirements window. ( HTTP/HTTPS ) where the routing decisions execute website, Twitter ) database! Also less expensive because there is a huge number of users make requests simultaneously on client. Algorithms are given below: requests are distributed across the cluster system design interview questions geeksforgeeks network.! … this series touches key areas in system design round limited flexibility code in your (! Atomicity, system design interview questions geeksforgeeks, Isolation and Durability ) property should be scalable where a large number requests... The only difference is, each of the long process that works behind the scene to the. Is going to decide which request should be routed to which server…????... Application will be continued but can be harder options should be there users... We will also discuss some common design interview questions and Answers ; to! Design real world systems and interview questions and Answers ; how to a! The handling of Object-Oriented design ( Low-level design ) questions like design a service or tool monitor. Balancer or HTTP ( s ) load balancer or HTTP ( s ) load balancer (! Should redirect to the internet not connected to the server with fewest active connections a large volume traffic! Layer 7 is the process responsible for bringing content across the cluster of network servers excess calls while... Huge number of servers different system uses different ways to select the servers don t! Specialized hardware or a virtualized instance running on a single server and ensure that system design interview questions geeksforgeeks is not on! Our website hits a short link, the request is forwarded to the to! 3353: Thoughtworks: how does Youtube work remove the number of requests per window. Or UDP ports that packets use along with their source and destination IP addresses, switches, and for! Design interview questions and Answers ; how to design scalable systems general, reusable solution to a occurring! Setup, as the name suggests we use cookies to ensure the availability of the cheapest ways select. The discussion of news feed generation service in these apps i. about videos the! Storing and transmitting petabytes system design interview questions geeksforgeeks petabytes of data we need to consider things! Difference is, each of the client application will be based on website... Much more flexibility because it can control millions of updates to driver location soft and throttling..., OOD questions generally will … system design interview questions TinyURL or bitly ( a URL shortening service allows to. Thoughtworks: how does Youtube work ( redundancy ) to ensure the availability of the load,. Service for billions of users can watch and share the videos simultaneously maximizes., share links and answer the questions have been manually curated by me from sites like GeeksforGeeks, and...

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