Two years of experience in Java development interview sharing, Lexin’s five sides, meeting the legendary architect wearing slippers

The invitation I received on Boss has gone through five rounds of interviews. Unfortunately, I did not receive satisfactory treatment in the end, but there are still some gains to share with everyone.

image

Lexin side:

  • Introduce yourself, briefly talk about your project?
  • TCP three-way handshake waved four times to draw a picture of the concept of congestion control sliding window
  • What if the maximum number of TCP connections is exhausted?
  • Process thread difference, which is the fastest switching speed, why inter-process communication, how to avoid deadlock, banker algorithm
  • The meaning of each field of the inux top command is SY US load, statistical keyword awk, view log file tail less more difference, memory usage
  • The meaning of se buffer/cache
  • Have you used docker? Have you ever written dockerfile, commonly used commands, and talk about the principle of layering
  • Redis basic data structure jump table implementation principle expires processing, Redis single thread advantage, factors affecting throughput, support transactions
  • What problems will Redis encounter? Cache consistency penetrates an avalanche, solutions
  • Does BloomFilter know? Let's talk about the principle and how to improve the accuracy
  • Algorithm question: Given a linked list, return the first node where the linked list starts to enter the ring (Leetcode142)

Lexin two sides:

  • The inviter on the boss should be the group leader
  • Self introduction
  • Talk project
  • Does the registration center know? Which two CAPs does Zookeepen meet, the election principle, and the difference from Euruka?
  • Java memory model, how to ensure the atomic CAS mechanism volatile ABA problem how to achieve the version number
  • JVM memory distribution, the meaning of -Xms -Xmx -Xmn -Xss, how to determine the maximum number of threads
  • Lock Synchronized and ReentrantL ock realization principle

After I added the interviewer's WeChat, I made an appointment for three times

Three sides of Lexin:

It is estimated that the hair volume is an architect, wearing a drag

  • Can Synchronized lock the de-escalation of static method lock?
  • The difference between innodb and myisam database engine, which is the faster primary key index, clustered index, index failure scenario
  • The crawler I*** principle level crawls the breadth of the crawled graphs What data structure is used for the first traversal
  • https process, interface encryption and signature algorithm
  • LRU, not torn out, used linkedHashMap

I came out and waited for a while, and brought to an office on all sides
. Lexin Sifang: I
guess it is the boss of the department, there is an independent office, and there are not many technical problems

  • Talk about the high-availability implementation in your project
  • career planning
  • Processing demand

HR surface:

  • Personal information, the situation of the previous company, where the company is located
  • Personal strengths and hobbies, the most fulfilling thing
  • Views on overtime
  • Current salary expectation salary
  • Views on consumer finance in the fastest entry time

Share some interview materials I usually collect

Collection is not easy, free to share, click me to see how to get it!

image

Collection is not easy, free to share, click me to see how to get it!

Guess you like

Origin blog.csdn.net/weixin_47066028/article/details/113652920