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Ali today to share with the interviewer 100+ Java interview questions
Kafka interview topic
use Kafka's what? How to use the scene?
What Kafka in the ISR, AR, also represent? ISR telescopic also refers to what
Kafka in HW, LEO, LSO, LW so what represent?
Kafka is reflected in the order of how the news?
Kafka in the district, a serializer, interceptor whether understand? What is the processing order between them?
The overall structure of Kafka producers client look like?
Kafka producers client uses several threads to handle? What are they?
Consumers client's design legacy of Kafka's Scala What flaws?
"The number of consumer spending in the group if the topic of partition over, then there will be less consumer spending data," this sentence is correct? If not, then there is no means to hack?
It submitted when consumers shift consumption to submit to the current consumption of the latest news of offset or offset + 1?
What circumstances would cause duplication of spending?
Under those scenarios can cause leakage news consumption?
Kafka interview answer analysis
Interview topics Redis
Redis cluster program should be how to do? What are the solutions?
Redis clustering solutions under what circumstances would cause the entire cluster is unavailable?
What are the appropriate scene Redis there?
Jedis Redisson contrast with what advantages and disadvantages?
Talk about the concept Redis hash slot?
How to between Redis cluster is replicated?
How to test the connectivity of Redis?
Redis what's the use in the pipeline?
Do you know what Redis partitioning implementations?
Redis persistent data caching and how to do the expansion?
Dubbo interview topics
that you feel good with Dubbo good or Spring Cloud?
In the course of what problems are encountered?
Dubbo you can integrate Spring Boot?
Dubbo and Dubbox What is the difference?
Service talk about Dubbo exposure process.
Dubbo must rely on the package what?
Service providers can realize what failure is kicked out of principle?
What Dubbo telnet command do?
When a service interface to achieve a variety of how to do?
Registered more with the same service, if the test specified certain services?
数据库面试专题
如何提高insert性能
sql注入的主要特点与危害
MySQL有哪些日志，分别是什么用处
MySQL有哪些日志，分别是什么用处
MySQL 服务器默认端口是什么
drop,delete与truncate的区别
int（5）中5的含义
分布式面试专题
为什么使用 MQ？？
Kafka, ActiveMQ, RabbitMQ, RocketMQ 各有什么优缺点？
消息中间件产生的背景
Netty 有什么用？NIO/BIO/AIO 有什么用？有什么区别？？
为什么要进行系统拆分？拆分不用 Dubbo 可以吗？
JVM面试题
Java 类加载过程？
描述一下 JVM 加载 Class 文件的原理机制
Java 内存分配。
GC 是什么? 为什么要有 GC？
简述 Java 垃圾回收机制。
如何判断一个对象是否存活？（或者 GC 对象的判定方法）
垃圾回收的优点和原理。并考虑 2 种回收机制。
垃圾回收器的基本原理是什么？垃圾回收器可以马上回收内存吗？有什么办法主动通知虚拟机进行垃圾回收？
Java中会存在内存泄漏吗，请简单描述。
深拷贝和浅拷贝。
System.gc() 和 Runtime.gc() 会做什么事情？
finalize () method is invoked when? What is the purpose destructor (finalization) is?
If the referenced object is set to null, the garbage collector if the object immediately release the memory occupied?
What is a distributed garbage collection (DGC)? How does it work?
What is the difference between serial (serial) collectors and throughput (throughput) is a collector?
In Java, when an object can be recycled garbage?
Description of Java memory allocation and recovery strategies and Minor GC and Major GC.
Permanent behalf of the JVM garbage collection will occur Why?
The method of garbage collection in Java What?
What is the class loader class loader What?
Parent class loader delegation model mechanism?
Due to space limitations of reason can go on to put out the answer: small series collected here also covers Java, Redis, MongoDB, MySQL, Zookeeper, Spring Cloud, Dubbo / Kafka, Hadoop, Hbase, Flink high concurrent distributed, big data, machine learning and other technical information, documentation, and so the interview!
Welcome to work one to five years of Java engineers JavaQQ friends to join the group: 733 234 221, free to receive the next chart data yo! ! !
Rational use of every minute of their own time to enhance their learning, do not use the "no time" to hide his ideological laziness! Young, hard fight, give an account of their own future!
