With the resurgence of Startups recruitment, more and more employees are starting to move around.

Some readers complained: After hopping from Google to Waterloo, after a real interview, he discovered that his system design ability was flawed.

The system design ability of many employees of large factories may not be as good as those of small companies . As a "screw" of a major manufacturer, there are very few opportunities to build a system, and "Waterloo" is not surprising.

It is not uncommon for system architecture design questions to fail in one test. There is no standard answer to the system design questions, and you can't memorize it by rote. Many veterans who have worked for 4 or 5 years cannot escape the fate of being hung up!

"System Design" Autumn Recruitment Sprint Spree

The content of the job search package, pull it to the end of the article to receive:

Summary of system design high-frequency interview question bank
Analysis of System Design Scoring Standards and Test Sites
Summary of system design learning materials

Flax and Google love to take the test, and new grad will not let go

In the face of the epidemic and the tide of layoffs, the number of competitors has greatly increased. This year, large factories prefer to recruit experienced engineers, so system design has become a must-test question for interviews .

In addition, judging from this year's spring recruitment situation, more and more new grads also encountered system design questions in interviews with major factories.

△Major factories love to take exams, and new grad will not let go

Nine chapters algorithm "System Design" 2020 edition . In-depth analysis of 18 interview design questions to help students fully grasp the knowledge points of system architecture design and interview test points.

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I love to test the original questions in the interview, and learning is the artifact

If you want to go ashore, the system design cannot be avoided. However, there are also benefits of being unable to dodge. System design is the same as algorithmic questions. I like to test the original questions.

The original questions over the years are basically equivalent to the system design question bank, such as the classic question that is tested every year: "Design a Twitter" . This year, Microsoft, Google and other big companies have tested this type of question.

"System Architecture Design System Design" 2020 revision, increase the learning system design knowledge and interview members of the high-frequency test sites selected, a total of 18 big questions .

4S template, apply all system design questions in one move

System design challenge is the topic open and there is no standard answer , although many workers veterans for many years, but due to the lack of lack of experience in the development of large systems , in the face of system design problem will no clue, no start , let alone New grad, this is also the crux of the system design.

However, system design is not without rules. Nine Chapter Algorithms and three first-line engineers have summed up a set of "4S analysis method", which is suitable for any system design problem :

Scenario : What functions need to be designed and to what extent?

Service : Split the large system into small services

Storage : How to store and access data

Scale upgrade : fix defects and deal with possible problems

Through the above 4 steps, you can disassemble the system design questions , and then slowly optimize them in the communication with the interviewer. No matter how difficult the system design questions are, you can find ideas and easily crack them!