From a friend recently Ali, Tencent, meituan and other P7 Python development post interview questions

Watch the corner. 2020-11-08 11:18:13
friend recently ali tencent meituan


From the beginning of the year and recent friends of the big factory interview questions .
Alibaba
  1. How to make deep copies of objects , except clone
  2. happen-before principle
  3. jvm The practice of tuning
  4. Singleton objects will be jvm Of gc When you recycle
  5. redis If list more , How to optimize the
  6. tcp And half a bag
  7. socket Some programming related api And usage
  8. It's the same thing that makes and processes connections socket Do you ,socket What are the two queues in
  9. Used in the project netty Do you
  10. TSL1.3 New characteristics
  11. AES Algorithm principle
  12. redis Use of clusters
  13. mysql And mogo contrast
  14. Scene question : To design a im The system includes group chat, single chat
  15. Scene question : Design database connection pool
  16. Scene question : Second kill scene design
Meituan
  1. Project details , It's about aiot Interactive processing , How to realize the instruction codec and instruction conversion of a large number of different devices , The architecture of the server , Self responsibility module
  2. OOM Fault handling of
  3. Have you ever used distributed locks , How to achieve , Talk about the principle
  4. redis Where to use the meter , Why use a skip watch
  5. mysql Practical experience of optimization
  6. hashMap1.8 And 1.7 difference
  7. netty Principle and use of
  8. tcp Connection process
  9. socket There are several queues
  10. How many connections can a server support , Why?
  11. tcp How to set the parameters
  12. redis Underlying basic data types ,redis The cluster theory ,cluster Use of clusters
  13. mysql Storage engine type , Index type ,innodb Data storage mode
  14. Parameter description of thread pool ,rejectHandler explain
  15. volatile Principle
  16. jvm What kinds of garbage collectors are there , Their application scenarios
  17. g1 Features of the recycler
  18. jvm structure
  19. Four and seven layers load balancing principle of load balancer
  20. Scene question : Design an e-commerce system with high availability and high concurrency
tencent
  1. kafka How to realize idempotent on the production side
  2. kafka How to implement distributed message
  3. kafka Of slave The synchronization mechanism of
  4. kafka How to write messages ack
  5. Why to achieve equals It must be realized first hash Method
  6. An object new The structure after coming out , How to save
  7. Let's talk about the process of class loading
  8. redis Of hash Data structure and how to expand capacity
  9. mysql How to realize snapshot reading
  10. msyql Transaction isolation level for , The difference between nonrepeatable reading and unreal reading
YY
  1. JVM Tuning ideas
  2. redis cluster How to smooth the data in cluster expansion , Design from the client
  3. mysql Of sql If it doesn't matter , The reason why I didn't go to the index ( Repeated emphasis sql That's all right. , No need to sql Consider... From an angle )
  4. kafka How to ensure that messages are not lost
  5. How to perform cross database joint query in sub database and sub table
  6. For current limiting design java Realization , Can't use tool class library
  7. dubbo Design and complete call procedure of ( Be specific )
  8. es How to solve the problem of cleft brain
poison ( Get something )
  1. new What happens to the process of an object
  2. spring What is the principle of circular reference resolution ?
  3. FactoryBean and BeanFactory difference
  4. Synchronized principle ?
  5. CAS volatile principle ?
  6. Memory model ? What is main memory ? What is working memory ?
  7. Database index type ? principle ?
  8. Spring Bean Life cycle ?
  9. mysql Optimization experience ?
  10. mysql Lock type ?
  11. redis What problems should be paid attention to in the process of use ?
  12. JVM Tuning parameters ?
  13. Thread pool principle ? Attributes represent meaning ?
  14. HashMap ConcurrentHashMap principle ?
Are you hungry
  1. Project introduction , How to continuously optimize the project 、 Architecture upgrade ? If the business volume increases sharply , How to ensure high availability of the system 、 Extensibility ?
  2. Order quantity 、 How much is added per day ? How to do sub database and sub table ? Based on what dimension to do ?
  3. detected jvm Memory is greater than configuration jvm Of xmx Configured memory , One of the three machines has this phenomenon , How to explain ?
  4. redis heat key How to solve ?
  5. kafka Why high performance ?
  6. OOM Scene analysis ?
  7. mysql How clusters are deployed , Master slave synchronization ?
  8. How to set what to use GC The way ? Different times GC What are the collectors ?
  9. on-line CPU It's very high. How to check it out
  10. jdk1.8 New features
  11. BIO\NIO understand
  12. mq How to ensure the reliability of the message ?
  13. What to do if the system load is too high 、 What's the problem ? How to troubleshoot ?
  14. linux The operating system briefly introduces what things ?
zhongtong
  1. JVM Introduce
  2. JMM Model
  3. gc root What are they? ?
  4. JVM Tuning experience ?
  5. Thread pool considerations , exception handling
  6. Distributed lock usage and principle ?
  7. redis How to persist ? High availability ?
  8. rpc Framework implementation principle ?
  9. Interface call slows down
  10. Business system architecture , Business volume
  11. Database design , Optimization plan
Fish bubble ( finger heart )
  1. More successful projects
  2. How to realize clearing and settlement ?
  3. Unified cash register design ?
  4. rocketMq and kafka difference , The selection ?
  5. kafka The flow of information from production to consumption ?
  6. hashMap hashTable difference ?
  7. Understanding of thread safety ?
  8. CAS Realization principle ?
  9. There are several ways to implement code locking ?
  10. Fast sorting algorithm
  11. Failure handling of distributed lock acquisition , Synchronization between threads ?
  12. redis Threading model , Expiration mechanism , Elimination strategy ?
  13. Thread pool parameters , Use scenarios , Parameter setting analysis ?
  14. mysql Storage engine , Index structure , Sub database and sub table
  15. Scene question : Design a red envelope grabbing system

Those who want detailed answers and other learning materials can come to my own Python Study Group , 1156465813 There are detailed solutions and other learning materials , All of us are learning Python Developed , If you are learning Python , Welcome to .

 


The following is useless , For this blog to be crawled by search engines
(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)
python What is it Zero basis to learn python How long will it take? python Why is it called a reptile
python Novice reptile tutorial python Crawler universal code python How do reptiles make money
python Basic course Web crawler python python Classic examples of reptiles
python Reptiles
(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)(* ̄︶ ̄)
The above is useless , For this blog to be crawled by search engines

 

版权声明
本文为[Watch the corner.]所创,转载请带上原文链接,感谢

  1. 利用Python爬虫获取招聘网站职位信息
  2. Using Python crawler to obtain job information of recruitment website
  3. Several highly rated Python libraries arrow, jsonpath, psutil and tenacity are recommended
  4. Python装饰器
  5. Python实现LDAP认证
  6. Python decorator
  7. Implementing LDAP authentication with Python
  8. Vscode configures Python development environment!
  9. In Python, how dare you say you can't log module? ️
  10. 我收藏的有关Python的电子书和资料
  11. python 中 lambda的一些tips
  12. python中字典的一些tips
  13. python 用生成器生成斐波那契数列
  14. python脚本转pyc踩了个坑。。。
  15. My collection of e-books and materials about Python
  16. Some tips of lambda in Python
  17. Some tips of dictionary in Python
  18. Using Python generator to generate Fibonacci sequence
  19. The conversion of Python script to PyC stepped on a pit...
  20. Python游戏开发,pygame模块,Python实现扫雷小游戏
  21. Python game development, pyGame module, python implementation of minesweeping games
  22. Python实用工具,email模块,Python实现邮件远程控制自己电脑
  23. Python utility, email module, python realizes mail remote control of its own computer
  24. 毫无头绪的自学Python,你可能连门槛都摸不到!【最佳学习路线】
  25. Python读取二进制文件代码方法解析
  26. Python字典的实现原理
  27. Without a clue, you may not even touch the threshold【 Best learning route]
  28. Parsing method of Python reading binary file code
  29. Implementation principle of Python dictionary
  30. You must know the function of pandas to parse JSON data - JSON_ normalize()
  31. Python实用案例,私人定制,Python自动化生成爱豆专属2021日历
  32. Python practical case, private customization, python automatic generation of Adu exclusive 2021 calendar
  33. 《Python实例》震惊了,用Python这么简单实现了聊天系统的脏话,广告检测
  34. "Python instance" was shocked and realized the dirty words and advertisement detection of the chat system in Python
  35. Convolutional neural network processing sequence for Python deep learning
  36. Python data structure and algorithm (1) -- enum type enum
  37. 超全大厂算法岗百问百答(推荐系统/机器学习/深度学习/C++/Spark/python)
  38. 【Python进阶】你真的明白NumPy中的ndarray吗?
  39. All questions and answers for algorithm posts of super large factories (recommended system / machine learning / deep learning / C + + / spark / Python)
  40. [advanced Python] do you really understand ndarray in numpy?
  41. 【Python进阶】Python进阶专栏栏主自述:不忘初心,砥砺前行
  42. [advanced Python] Python advanced column main readme: never forget the original intention and forge ahead
  43. python垃圾回收和缓存管理
  44. java调用Python程序
  45. java调用Python程序
  46. Python常用函数有哪些?Python基础入门课程
  47. Python garbage collection and cache management
  48. Java calling Python program
  49. Java calling Python program
  50. What functions are commonly used in Python? Introduction to Python Basics
  51. Python basic knowledge
  52. Anaconda5.2 安装 Python 库(MySQLdb)的方法
  53. Python实现对脑电数据情绪分析
  54. Anaconda 5.2 method of installing Python Library (mysqldb)
  55. Python implements emotion analysis of EEG data
  56. Master some advanced usage of Python in 30 seconds, which makes others envy it
  57. python爬取百度图片并对图片做一系列处理
  58. Python crawls Baidu pictures and does a series of processing on them
  59. python链接mysql数据库
  60. Python link MySQL database