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A few days ago, a friend went to the current mainstream large Internet companies interview ** (Alibaba, JINGdong, Meituan, Tencent) **, after the interview will send me some interview questions. A friend of mine tried his best to get into Bytedance and got the offer. I believe many of you will be curious about the interview questions and answers.

I have specially sorted out many questions that can not be clearly explained by a few words, so I simply asked my friends to record some videos for these interview questions. In fact, the answer to many questions is very simple, but the thinking and logic behind it is not simple, it is necessary to know the why and why.

No matter you are small white or work has three or five years of iron iron people, no matter you are just experienced gold nine silver ten or about to prepare 2021 gold three silver four, should take a good look at this information, it is very comprehensive, almost covering all technical cutting ~

Without further ado, this document is divided into 4 parts, including (technical PDF+ interview question + video analysis + interview technical guidance) :

Java Architect Growth Notes:

These include basic knowledge, Java collections, JVM, multi-threaded concurrency, Spring principles, microservices, Netty and RPC, Kafka, diary, design patterns, Java algorithms, databases, Zookeeper, distributed caching, data structures, and so on. I have helped many people get offers from first-line Internet companies. There are 31 knowledge points.

Due to the details in the PDF document is too much so only edited part of the knowledge points of the chapter rough introduction, each chapter of the small nodes there are more detailed content! The following is part of the chapter table of contents. Due to the space limit of the headlines, the detailed explanation in the table of contents cannot be listed one by one. Click “like” the article and add the assistant to get all the detailed knowledge in the following chapters.

JAVA based

First certainly is Java foundation review, study and work are used, Java foundation to learn well, like building a house foundation, foundation is not strong, the earth shakes.

Principle of the Spring

It is a comprehensive, one-stop solution for enterprise application development that runs through the presentation, business, and persistence layers. But Spring can still be seamlessly integrated with other frameworks.

Micro service

network

The database

Database storage engine is the bottom software organization of database. Database management system (DBMS) uses data engine to create, query, update and delete data. Different storage engines provide different storage mechanisms, indexing techniques, locking levels, and other functions. Different storage engines can be used to obtain specific functions. Many different database management systems now support many different data engines. The main storage engines are :1.Mylsam, 2.InnoDB, 3.Memory,4.

Kafka

Kafka is a high-throughput, distributed, publish/subscribe based messaging system originally developed by Linkedln and written in Scala. Kafka is currently an open source project of Apache.

Data structure and encryption algorithm

Storm

Storm is a free and open source distributed real-time computing system. It is very easy to reliably process unlimited streams of data with Storm, which processes data in real time just as Hadoop processes big data in bulk.

Load balancing

Based on the existing network structure, load balancing provides a cheap, effective and transparent method to expand the bandwidth of network devices and servers, increase the throughput, strengthen the network data processing capacity, and improve the flexibility and availability of the network.

Cloud computing

The interview questions,

When the interviewer asked him a question, he thought he was right, but the interviewer repeatedly asked him to confirm it. Finally, he wondered what was wrong with it.

I believe that like him, there are many friends who come up with the interview questions. Ultimately, they are not familiar with spring principle, JVM, microservices, MySQL, concurrent programming and other contents. We all know what it is but don’t know why, so there are a lot of reasons why interview failure, whether it is a job or interview, just too many questions, brush the question is no harm. This part focuses on the analysis and explanation of the interview, as follows:

The space is limited, can not show one question one answer (these materials have been arranged in this set of interview clearance necessary documents), feel the need of the code friends, please help to like (can help more people see yo! Please give it a thumbs up! Get a free download!!

How to obtain this quality information?

Quick start channel: like the article, add a small assistant can get! 100% claim!!

Sorting is not easy, feel helpful friends can help like share support small series ~

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