Designing Large Scale Distributed Systems has become the standard part of the software engineering interviews. Engineers struggle with System Design Interviews (SDIs), primarily because of the following two reasons:

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Jun 19, 2012 Software Engineer Interview Questions. Software engineers write programs to design and develop computer software. Interviews are highly technical, so come ready to work through coding problems and math brainteasers.
Interview Questions to Ask a Software Engineer. Once you have a shortlist of software engineer candidates, below are the essential questions to ask them (beyond questions about soft skills). Keep in mind that these questions are general software development questions that don't refer to any specific language.
Designing Large Scale Distributed Systems has become the standard part of the software engineering interviews. Engineers struggle with System Design Interviews (SDIs), primarily because of the following two reasons: Their lack of experience in developing large scale systems. Unstructured nature of.

It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Interview Preparation for Software Developer - GeeksforGeeks. Software engineers are responsible for developing, testing, deploying, and revamping computer programs. If you're interviewing for a position as a software engineer, it helps to know what types of questions to expect.

Their lack of experience in developing large scale systems.
Unstructured nature of SDIs. Even engineers who’ve some experience building large systems aren’t comfortable with these interviews, mainly due to the open-ended nature of design problems that don’t have a standard answer.

A great performance in SDIs is highly rewarding since it reflects upon your ability to work with complex systems and translates into the position and compensation (salary & stocks) that the interviewing company will offer you.

Check out the following resources to prepare for software engineering interviews:

System Design Interviews:Grokking the System Design Interview

Object-Oriented Design Interviews: Grokking the Object-Oriented Design Interview

Coding interviews preparation:Coderust 3.0: Faster Coding Interview Preparation with Interactive Challenges & Visualizations

Data Structures: Data Structures for Coding Interviews

At Educative.io, we’ve talked to hundreds of candidates who went through design interviews. As part of the process, we’ve compiled a list of most frequently asked System Design Interview Questions.

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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.

Lot's of spindles and shafts that would be too long for all but the biggest (and most expensive) turning centers.Like I said, I would like to get into production work with more manageable pieces, but that's not where my work is coming from now.and I don't know how smart it is to buy a machine based on work that I 'hope' to get. The problem, I think, is the size of machine I would have to buy and the affordability.20' machining length would be too short. I run out of travel on a 36' bed lathe all the time.I run a lot of LONG parts. https://treesydney.amebaownd.com/posts/19073875.

1. Design TinyURL or bitly (a URL shortening service)

Given a (typically) long URL, how would how would you design service that would generate a shorter and unique alias for it.

Discuss things like:

How to generate a unique ID for each URL?
How would you generate unique IDs at scale (thousands of URL shortening requests coming every second)?
How would your service handle redirects?
How would you support custom short URLs?
How to delete expired URLs etc?
How to track click stats?

2. Design YouTube, Netflix or Twitch (a global video streaming service)

Videos mean that your service will be storing and transmitting petabytes and petabytes of data.You should discuss how to efficiently store and distribute data in away that a huge number of users can watch and share them simultaneously (e.g. imagine streaming the latest episode of a hit TV show like Games of Thrones).

https://treesydney.amebaownd.com/posts/18201106. In addition, discuss:

How would you record stats about videos e.g the total number of views, up-votes/down-votes, etc.
How would a user add comments on videos (in realtime).

3. Design Facebook Messenger or WhatsApp (a global chat service)

Interviewers are interested in knowing:

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How would you design one-on-one conversations between users?
How would you extend your design to support group chats?
What to do when the user is not connected to the internet?
When to send push notifications?
Can you provide end-to-end encryption. How?

4. Designing Quora or Reddit or HackerNews (a social network + message board service)

Users of the services can post questions or share links. Other users can answer questions or comment on the shared links. The service should be able to:

Records stats for each answer e.g. the total number of views, upvotes/downvotes, etc.
Users should be able to follow other users or topics
Their timeline will consist of top questions from all the users and topics they follow (similar to newsfeed generation).

5. Design Dropbox or Google Drive or Google Photos (a global file storage & sharing service)

Discuss things like:

How would users be able to upload/view/search/share files or photos?
How would you track persmissions for file sharing
How would you allow multiple users to edit the same document

6. Design Facebook, Twitter or Instagram (a social media service with hundreds of millions of users)

When designing a social medial service with hundreds of million (or billions of users), interviewers are interested in knowing how would you design the following components

Efficient storage and search for posts or tweets.
Newsfeed generation
Social Graph (who befriends whom or who follows whom — specially when millions of users are following a celebrity)

A lot of times, interviewers spend the whole interview discussing the design of the newsfeed.

7. Design Uber or Lyft (a ride sharing service)

While designing a ride-sharing service, discuss things like:

The most critical use case — when a customer requests a ride and how to efficiently match them with the nearby drivers?
How to store millions of geographical locations for drivers and riders who are always moving.
How to handle updates to driver/rider locations (millions of updates every second)?

8. Design a Web Crawler or Type-Ahead (search engine related services)

For Type-Ahead, as the user types in their query, you need to design a service which would suggest top 10 searched terms starting with whatever the user has typed. Discuss things like:

How to store previous search queries?
How to keep the data fresh?
How to find the best matches to the already typed string?
How to handle updates and the user is typing too fast?

For Web Crawler, we have to design a scalable service that can crawl the entire Web, and can fetch hundreds of millions of Web documents. Discuss things like:

How to find new web pages?
How to prioritize web pages that change dynamically?
How to ensure that your crawler is not infi

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