5 g proves the arrival of the Internet industry develops fast as usual, and as a developer (Java hillock) dream of nature is the giant of Internet industry, the chance to be lucky enough to get interview bytes to beat, and I also made the preparation before the interview began to prepare for a month, also very honored to get the bytes to beat the offer, Here we share a bytedance three-sided process!

Byte side:

  1. Hashmap, how to expand, how to deal with data conflicts? How to efficiently implement data migration?
  2. How to implement Linux shared memory is explained briefly.
  3. Socket network programming, say TCP three-way handshake and four-way wave
  4. What is the difference between synchronous I/O and asynchronous I/O?
  5. Java GC mechanism? What GC Roots do you have?
  6. Red black tree, five features, insert and delete, time complexity?
  7. What’s the worst case, what’s the best case, what’s the heap sorting time, what’s the heap building time

Byte 2 face

  1. Introduce yourself, what do you do and what are you good at
  2. What do design patterns know?
  3. How does AtomicInteger implement atomic modification?
  4. Is ConcurrentHashMap different in Java7 and Java8? Why is Java8 more concurrency efficient? When do you use HashMap and when do you use ConcurrentHashMap?
  5. Redis data structure?
  6. Redis data elimination mechanism?

Bytes on three sides

  1. Mysql Transaction Implementation principle (MVCC)
  2. How to implement primary/secondary synchronization of MySQL data?
  3. MySQL index implementation, innoDB index, b+ tree index is how to achieve, why use B + tree index node, how much data stored in a node, how to specify the size, and disk page corresponding.
  4. If Redis has 100 million keys, will using keys affect online services?
  5. Redis persistence mode, AOD and RDB, how to implement, append logs and backup files, the underlying implementation principle if you know?
  6. What was the biggest difficulty? How to overcome it?
  7. What are the plans for the future?
  8. What did you want to ask me?

The above interview questions are for bytedance backend development, and the following are some of the interview questions for reference.

 

Golden three silver four job-hopping season, my younger brother prepared several interview treasure book for you:

  • One is the technical dry “Java core Knowledge Points collation”

  • One is the real interview question “1000 Internet Java Engineer interview questions”.

  • Internet Java Engineer Interview Questions

  • Forward + attention, get free way.

     

Java core knowledge sorting

 

1000 Internet Java Engineer interview questions

 

Internet big factory interview treasure book

 

Answers to interview questions

Follow the public account below to obtain ~

Important words say three times, first forward, forward, forward, and then pay attention to get reference answers oh!