Stay up late and get out of the analysis of 95% of the interview questions on the Java backend of major manufacturers such as Ali/Meituan/Jingdong. The autumn recruits are a big win and help you win at the starting line

Time went round and round. Not long after the Golden Three and the Silver Fourth, in a blink of an eye, the Golden Nine and the Silver Ten came quietly again. I rushed to the early collection and compiled a version of java high-frequency interview questions for everyone. In fact, there are always big guys in the interview. Not in the interview, or on the way to the interview. 2020 is actually not a suitable year for job-hopping. Of course, it's good to be steady, but don't wrong yourself.

Here is a word for you: The most afraid, the person who is stronger than you, works harder than you!

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Due to the limitation of the length of the article, it is impossible to display all interview questions in text format. This article selects some interview questions for everyone

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Redis interview topics

1. What is Redis? Briefly describe its advantages and disadvantages?

2. What are the advantages of Redis compared to memcached?

3. Which data types does Redis support?

4. What physical resources does Redis consume?

5. What kinds of data elimination strategies does Redis have?

6. Why doesn't Redis officially provide a Windows version?

7. There are 2000w data in MySQL and only 20w data in redis. How to ensure that the data in redis are all hot data?

8. What are the suitable scenarios for Redis?

9. What is cache penetration? How to avoid it? What is a cache avalanche? How to avoid it?

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mysql interview topic

1. What are the three database paradigms?

2. What are your experience in database optimization?

3. Please briefly describe the types of commonly used indexes?

4. And what is the working mechanism of index in mysql database?

5. Switch to a database and work on it: run the command use databasename; enter the database named databasename

6. The principle and process of mysql replication.

7. What type of replication does mysql support?

8. What is the difference between myisam and innodb in mysql?

9. What is the difference between varchar and char in mysql and the meaning of 50 in varchar(50)?

10. The names of the four transaction isolation levels supported by InnoDB in MySQL, and the difference between each level?

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SpringBoot interview topics

What is Spring Boot?

What are the advantages of Spring Boot?

What is JavaConfig?

What is the monitor in Spring Boot?

How to disable Actuator endpoint security in Spring Boot?

How to run Spring Boot applications on custom ports?

What is YAML?

How to realize the security of Spring Boot application?

How to integrate Spring Boot and ActiveMQ?

How to use Spring Boot to implement paging and sorting?

What is Swagger? Have you implemented it with Spring Boot?

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Kafka interview topics

1. What is the design of Kafka?

2. What are the three definitions of data transmission?

3. What are the two conditions for Kafka to judge whether a node is still alive?

4. Does the producer send data directly to the leader (master node) of the broker?

5. Can Kafa consumer consume messages from designated partitions?

6. Does Kafka message use Pull mode or Push mode?

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Linux interview topics and answers

1. What are the main types of kernel locks in Linux?

2. What is the meaning of user mode and kernel mode in Linux?

3. How to apply for a large chunk of kernel memory?

4. What are the main ways of communication between user processes?

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Dubbo interview topics

Interview Questions Collection

A total of 29 interview albums are included, covering more than 95% of java back-end interview questions from java, which will definitely make you a worthwhile trip! ! !

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Interviews are the most direct and effective way to change jobs and raise salaries. It is coming soon. Are you ready for interviews to build airplanes and work screws?

Having mastered these knowledge points, you can get a lot of eye-catching among candidates during the interview, crit 9999 points. Opportunities are reserved for those who are prepared. Only with sufficient preparation can you stand out among the candidates.

If you need this full version of the interview notes, you only need to support me in this article.

A lot of support, you can get information for free-after three consecutive years (promise: 100% free)

Quick start channel: ( click here ) to download! Full of sincerity! ! !

Selected questions for Java interviews, architecture and actual documentation portal: https://docs.qq.com/doc/DWGNIdkZtWEFLaFhE

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