Are you a "social bull" or a "social terrorist" in the interview?

Before you know it , A week has passed since the Spring Festival holiday , After the Carnival , Many students said they were suffering from " Comparison panic syndrome ", The reason is that during the Spring Festival, I participated in various classes 、 After the relatives' Party , I found that people around me are better than myself , It's not like buying a house or a car , When the boss gets a high salary, there are countless , Only you are still standing still , No progress in career .

But an old saying goes well ： And envy the fish , Better to go back and spin a net . Now " Kim San Yin four " Job hopping season is coming , People in the workplace can take advantage of this springboard ： Get a higher salary , Go to a bigger platform , Have better career development ……

But if you are unprepared to jump ship blindly , Nine times out of ten, it will lead us into the pit again , Facing the embarrassing situation of getting worse and worse , After all, everyone hopes that their job hopping is a promotion , Instead of standing still , I don't want to " Job hopping for half a year , Three years of inter-bank poverty ."

So to achieve efficient and accurate job hopping , There must be planning 、 Being prepared can minimize the sunk costs in the workplace , Help our career development spiral up .

Here, I would like to give you some suggestions to brush the questions , In addition to finding the right question, you have to understand what this question really depends on , Just figure out this , You're the one who knows this question , After all, you can't place your hopes on the questions that appear in the interview

Algorithm problem

The written test is usually leetcode Original title or adaptation of ; Make the interview simple , Generally, you can see the sword finger offer, Of course, the interview questions can be difficult . Zero basis can see Java Data structures and algorithms , Do not look. scala Of , Generally do not use scala Brush problem ; Want to see some algorithm brush problem template can go @labuladong Get in there <<labuladong A copy of the algorithm >>. in addition , Try to do it by category .

SQL topic

SQL The problem may also come out , If you don't understand , May have a look B standing up Lord Java Introduction to the club , No environment , be familiar with SQL Sentence is good , Then go to leetcode Or cattle brush questions .

Big data is a simple problem

For example, please top-10 and wordcount etc. .

Interview Basics

In two parts , On the one hand is Java Basic and computer basic （ Such as network 、 database 、 Operating system, etc ）; On the other hand Linux and Hadoop、ZooKeeper、Hive、Flume、Kafka、HBase、Spark 、 Flink And other big data frameworks .

TALKDATA These two notes correspond to these two aspects , Each note has about 100 questions and answers , The answers to some questions are more in-depth and Bottom , such as HDFS The source code parsing , I don't see much , It takes time to understand the bottom , If there is no foundation or time is not enough, it is not recommended to watch . The main thing here is to watch the video first , The following is combined with the document , You don't have to learn it all . After learning, you can read the interview questions on niuke.com according to your needs , I've also sorted out some , You can get it yourself .

Everyone is asked a different point , You can focus on preparing to be asked （ be familiar with ） Framework .

About Java I wrote an article before the foundation 21000 The word Java Basic knowledge summary , need PDF My friends can also send me a private message to collect the documents

Watch videos

Mainly Java Zero Basics ,MySQL Basics ,Java Data structure and algorithm ; Big data includes Linux（Shell You can skip ）、Hadoop、ZooKeeper、Kafka、Spark、Flink etc. , It's mainly about the framework used in the project , Focus on , Other knowledge of some basic line .

Key points of regular examination

Java：Java Basic knowledge of 、 Collection classes 、JVM and JUC etc. .

Hadoop： form 、mapreduce technological process 、shuffle And high availability .

Spark：RDD、 Shared variables 、 Data skew 、 Overall process 、shuffle And fault tolerance mechanism .

Hive： framework 、 The difference from database 、 Partition 、 Points barrels 、 Sorting and windowing functions, etc .

HBase： framework 、 Read and write flow 、rowkey Settings, etc .

Kafka： framework 、 Message ordering 、spark streaming and kafka Connect 、 Message loss and duplication 、 Producer and consumer related issues .

Friends in need Backstage private message “ interview ” You can get it for free