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【腾讯面试 1.0】出师不利，心有余悸

背景

  • 时间： 2017. 08
  • 地点： 腾讯万利达大厦
  • 岗位： web开发工程师

面试步骤

  1. 笔试 45分钟
  2. 面试 30分钟

面试内容

  1. 前端
  2. PHP
  3. 网络
  4. Linux
  5. 算法

前端

  1. 描述一下ajax请求
  2. XMLHttpRequest介绍以及它的readyState状态码
  3. 如何形容js的闭包
  4. JavaScript的内存回收机制
  5. JavaScript闭包的内存如何释放
  6. 常见跨域方式有哪些
  7. 形容一下CORS跨域
  8. 前端性能优化

PHP

  1. PHP的内存回收机制
  2. PHP单例模式

网络

  1. 简单描述OSI七层模型和TCP/IP四层模型
  2. 解释下TCP的三次握手和四次挥手

Linux

  1. 查找端口服务对应的进程
  2. 查看内存占用和CPU使用的命令

算法

  1. 常见的排序算法有哪些
  2. 快速排序的时间复杂度是多少
  3. 如何实现二分法查找

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