Byte beating interview sharing, in order to win this offer, who knows what I have experienced

Byte skipping technology side

• Talk about your internship program

• Let's talk about the meaning of thread parameters

• Innodb Index implementation of

• Why B+ Trees ？

• Redis Use , Implementation of distributed lock

• Operating system virtual memory paging process

• TCP Three handshakes

• volatile The role of keywords

• Optimism lock 、 Pessimistic locking

• HashMap structure , Is it thread safe ？ConcurrentHashMap How to ensure thread safety ？

• What design patterns have been used before ？

• Algorithm problem ： The sliding window

Byte skipping technology has two sides

• The way B Trees and B+ The difference between trees

• The way HashMap The implementation of the , Expansion mechanism , How to ensure operability during capacity expansion ？

• Redis Expansion mechanism （ Progressive single thread expansion ）

• Spring AOP Principle

• Spring IoC Principle , How to achieve , How to solve circular dependency ？

• Two threads on variables i add 1 operation , What is the result? ？ Why? ？ How to solve ？

• CAS Concept 、 Implementation principle of atomic class

• synchronize Underlying implementation , How to achieve Lock？

• AQS What are the characteristics of ？

• Write a module code in the project .

• Introduce various network protocols .

• DNS Which protocol to use at the network layer , Why? .

• Introduce HTTPS agreement , detailed SSL Establish connection process .

• Code question ： Reverse single chain table .

• Code question ： Complex linked list replication .

• Code question ： Array a, First monotone address and then monotone decrement , The number of different elements in the output array . requirement ：O(1) Spatial complexity , Can't change the original array

Three aspects of byte skipping Technology

• The way Java Garbage collection mechanism

• 64 horse ,8 Track (s) , Find the fastest 4 horse .

• 64 horse ,8 Track (s) , Find the fastest 8 horse .

• Give two ascending arrays A、B And length m、n, Please k A big one

• Give the array A, The length is n, The values of the elements in the array are located in [0, n - 1] Between , Find out if there are repeating elements

• Let's talk about the difference between multithreading and multiprocessing

• JVM When will garbage collection be carried out in ？ What kind of objects can be recycled ？

• Spring What is the main idea ？

• What's your future direction ？ Are you sure ？ I'm going to do it all the time Java？ Have you ever considered turning ？

• How do you usually study Java What about ？

• Share a recent book

Byte skipping technology has four sides

• Scene title ： Design a short domain name service ： SMS can't be saved too long , Need to make it short domain name , How do you design a service , Can serve the national website .

• TCP Why three handshakes, four waves ？

• Isolation level of database

• sql topic , Write a linked table query plus fuzzy query

• Algorithm ： Mirror binary tree  ......

Bytes to beat HR Noodles

• Self introduction.

• Do you know byte skipping ？ Talk about the byte in your eyes ！

• Which product do you usually use byte to beat is more ？

• Why do you want bytes ？ Is the intended city Beijing ？

• Talk about your own career plan

• Expected salary

• Other routine questions

summary

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