我出的linux开发工程师的面试题
我们组要招一个Linux研发工程师，要我去做技术面试， 准备了一小时，列出了下面这些问题，大家觉得如何？ 招的人税前年薪12W以上。题会不会基础了一点？
Network Theory
1. What is OSI 7 layer network model? How do you think about it?
2. When your computer send out a package, how this package been sent to destination in internet?
3. Many years ago, many people think IP address will be run out of soon, but now we continue use IPV4, what is the technology been selected to resolve this problem.
4. What is IGMP?
OS Theory
1. What’s process and what’s thread? compare it.
2. What’s the memory protected-mode and real-address mode? Why all PC OS use protected-mode, but many real-time OS use real-address mode?
3. Please describe OS how to schedule all task?
4. Please provide some IPC method that OS provide to application. Describe your philosophy to select a specific IPC.
5. What’s watch dog theory?
6. What is the COW technology in Linux?
Linux Base Programming
1. What’s a signal safe function? What’s a thread safe function? What’s the difference between signal safe function and thread safe function? Please provide some example?
2. When I type a command on shell as below, please describe shell’s potential action. Please describe in C language.
# ls
# ls &
# ls | sort
3. What’s Zombie process, what’s orphan process? What’s daemon
相关问答：
给个地址，或者发到我邮箱也行 wrongagain98@163.com
最好是视频的，不是视频普通的也行。
主要是两方面：
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需要在linux下用中断方式来写一个串口的程序，现在没有思路，网上有人说用select,signal,tasklet函数的，但是我没看懂，希望有做过的给一下例程，多谢！
就是能够当串口数据来临时自动通知串口读取数据，类似于中 ......
两台机器型号完全一样
想要把一台机器的内核配置文件拷贝给另外一台
RT
3Q
...
.config 隐藏的 在你配置过内核后就生成了
ls正解，在kernel源码顶层目录中有个.config文件，配� ......
