After a circle, I sorted out this set of interview questions..

I recently saw a post posted by a former Tencent employee , Summary of recent interview results , It's really those three words ： It's numb ……

Source network

A senior programmer who worked in Tencent after graduation , For a variety of reasons , Quit . Take advantage of the golden, silver and four job seasons , Internet big and small factories had a round of interviews , It doesn't feel very good , The last one is Received Jingdong's employment notice .

A brief analysis of ： One side, two sides hr The noodles have been hung , The reason is that the project is too simple 、 Experience doesn't match 、 The question didn't answer , There are even features that don't match the team hc Freeze for this reason .

I think of many second and third tier companies that Alibaba Tencent came out a few years ago. They talk and go through a process , Now this situation has to sigh that the Internet industry is becoming more and more depressed , A lot of work is hard to do …… And the preparation before the interview is too important ！

For this purpose, I prepared a special report with several big men Advanced technology + Project experience + Interview materials , Including more than ten Internet manufacturers Interview questions 、 Face to face summary and 20 A collection of technology stack data , Read through this information , Technology and interview are not problems at all ; As well as Video analysis of actual combat of large factory project , The project experience you lack can be accumulated from it .

During this period, there were interviews with large factories , You can hurry up to prepare according to the following information , It is very useful for large factory interview and technical advancement ！！！

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* Java Concurrent programming

contain ：java Memory model , Concurrent sets , Thread pool , Blocking queues ,CAS And atomic manipulation , Lock free concurrency framework Disruptor etc.

* Spring piece

contain ：spring IOC,spring AOP principle ,spring 5,springMVC, Business management , Cyclic dependence ,spring Design mode, etc

* Mysql piece

contain ：SQL Execution principle , The underlying indexing mechanism ,SQL Perform plan analysis ,Mysql Locking mechanism ,Mysql The transaction isolation ,SQL Optimization practice, etc

* SpringCloud piece

contain ： Service discovery and registration Eureka And Nacos, Service current limiting fuse is degraded Hystrix And Sentinel, Distributed transactions Seata, gateway Gateway etc.

* Dubbo piece

contain ：Dubbo Basics , Architecture design , colony , To configure , Communication protocol ,SPI etc.

* Redis piece

contain ：Redis Core data structure ,Redis Persistence mechanism and security mechanism , Sentinel and cluster architecture ,Redis Cache penetration , Cache invalidation , Cache avalanche ,Redis Cache design and performance optimization

* Distributed article

contain ： The principle of distributed architecture , Cluster architecture principle , Distributed lock , Distributed transactions , Distributed protocol , Distributed configuration , Massive data is divided into databases and tables , Distributed scheduling, etc

* Design patterns

contain ： The singleton pattern , Factory mode , Abstract factory pattern , Builder pattern , Archetypal model , Adapter pattern , Decorator mode , Agent mode, etc 23 Design patterns

* Data structure and algorithm

contain ： Red and black trees ,B+ Trees , Greedy Algorithm , Hash divide and conquer , Seven search algorithms , Dynamic programming , Consistency algorithm, etc

* MQ piece

contain ： Lost message , Message re consumption , The news is out of order , There's a backlog of news , Delay queue , News backtracking consumption , Message refresh mechanism ,MQ Middleware cluster architecture principle, etc

* Netty piece

contain ：BIO、NIO And AIO Threading model ,Netty Threading model , Serialization protocol protobuf, Sticking and unpacking ,Netty heartbeat , Direct memory and Netty Zero copy ,WebSocket Agreements, etc

* Zookeeper piece

contain ：ZooKeeper The election mechanism ,ZooKeeper Data model ,ZooKeeper Application scenarios, etc

* ElasticSearch piece

contain ：ElasticSearch Data model 、ElasticSearch Distributed architecture 、ElasticSearch Data reading and writing principle and segment merging, etc

* Network and operating system

contain ： Network protocol ,TCP/IP System structure ,TCP/IP Protocol family , Common interview questions, etc

* JVM piece

contain ：JVM Class loading mechanism ,JVM Memory model , Garbage collection mechanism , Class bytecode implementation mechanism ,JVM Tuning case ,GC Detailed log explanation, etc

Due to limited space , This is just part of the presentation ！

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