Before the interview, many people may have never worked in an Internet company or have worked in a relatively short period of time. I don’t know what questions will be asked in an Internet company technical interview? In addition, I may not be fully prepared. I was overwhelmed by a few questions by the interviewer within a few rounds of the interview and ended in a disastrous defeat. In response to these, I summarized an Internet company Java high-level interview topic, analyzed it and made it into a pdf, shared it with everyone for free, and pointed out the direction for everyone. I hope everyone can take these questions and find relevant materials for targeted conduct. Learning, know yourself and your opponents in the interview, and be victorious in all battles.
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MySQL database
Database-Java programmers must ask and just need to be interviewed. 10 classic questions are sorted out, and there are more to get at the end of the article!
1. Four characteristics of transaction (ACID) atomicity, consistency, isolation, and durability? (
2. Concurrency of transactions? Transaction isolation level, what problems each level will cause, which level is MySQL default? .
3. What is the difference between the three common MySQL storage engines (InnoDB, MyISAM, MEMORY)?
4. What are the two storage engines of MySQL, MyISAM and InnoDB, transaction and lock levels, and their respective applicable scenarios?
5. The order of execution of the different elements of the query statement (where, jion, limit, group by, having, etc.)?
6. What is a temporary table and when will the temporary table be deleted?
7. What is the difference between MySQL B+Tree index and Hash index?
8. The sql query statement determines which type of index to create and how to optimize the query
9. The difference between clustered index and non-clustered index?
10. What locks are there (optimistic locks, pessimistic locks), and how to add exclusive locks when selecting?
Redis cache
1. Why use redis / why use cache
2. The difference between redis and memcached
3. Redis common data structure and usage scenario analysis
4.redis set expiration time
5. Redis memory elimination mechanism (There are 2000w data in MySQL and only 20w data in Redis. How to ensure that the data in Redis are all hot data?)
6. Redis persistence mechanism (how to ensure that the data can be restored after redis is hung up and restarted)
7.redis transaction
8. Redis common exceptions and solutions
9. Common application scenarios in a distributed environment
10.Redis cluster mode
10 Redis advanced interview questions analysis
Spring/SpringMVC
Concurrent programming
JVM (Java Virtual Machine)
Microservices (Spring Boot/Spring Cloud)
1. What are the advantages of using Spring Cloud?
2. What does service registration and discovery mean? How to implement Spring Cloud?
3. What is the significance of load balancing?
4. What is Hystrix? How does it achieve fault tolerance?
5. What is a Hystrix circuit breaker? Do we need it?
6. What is Netflix Feign? What are its advantages?
7. What are the core configuration files of Spring Boot? What is the difference between them?
8. What is the core annotation of Spring Boot? Which annotations are mainly composed of?
9. What is the monitor in Spring Boot?
10. What is Swagger? Have you implemented it with Spring Boot?
RabbitMQ
1. What are the usage scenarios of RabbitMQ?
2. What are the important roles of RabbitMQ?
3. What are the important components of RabbitMQ?
4. How are RabbitMQ messages sent?
5. How does RabbitMQ guarantee the stability of messages?
6. How does RabbitMQ avoid message loss?
7. What are the conditions to ensure the success of message persistence?
8. How many broadcast types does RabbitMQ have?
9. How does RabbitMQ implement delayed message queues?
10. What happens if the only disk node in the RabbitMQ cluster crashes?
Readers share and encourage each other
The above is the author's sharing of learning routes for advanced architects and a wave of interview topics that must be asked. Then resources are definitely indispensable. If you are interested in technology improvement, the editor here provides an architecture for the above map. Advanced interview topic materials, resource sharing including but not limited to (distributed architecture, high scalability, high performance, high concurrency, Jvm performance tuning, Spring, MyBatis, Nginx source code analysis, Redis, ActiveMQ, Mycat, Netty, Kafka , Mysql, Zookeeper, Tomcat, Docker, Dubbo, Nginx).
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