Applovin Interview (面经)

职位：SDE Intern positon

地点: San Jose

轮电面：self introduction

what’s your interest

Concept of “Concurrent”

Thread vs process: definition and difference

difference between static-field and non static field

synchronized meaning

difference between synchronized a static method and synchronized a non-static method

difference between lock and synchronized

difference between read lock and write lock

What’s the purpose of executors

why do we need immutable class

what’s the meaning of final

what’s the meaning of volatile, give an example how to use it.
轮电面：how to ensure date consistency in distributed system ? What's the concurrent meaning ? Tell me about one of your project ? Which part do you use in Spark ? tell me about RDD ? 下面就是算法题：写个transform function, 将 str 转化为另外格式的str
轮onsite: 7道算法，三轮面

tree level traversal

reverse linkedlist

Product of Array Except Self

Group Anagrams----follow up

LFU cache

Design a cache to maintain data consistency between database and memory

面的结果还行，题目难度适中...但是感觉一个intern，面的这么serious, 有必要么？ anyway, 这是一次宝贵的经历，到San Jose 免费溜了一圈，感受了下老美找工作的流程。。。。希望我的面经能给大家带来帮助哈

巴特西