EMC技术支持笔试

mms1985

刚考完EMC技术支持的笔试，大致说一下吧
1. 概率论，前面几道都是用概率来计算的
2. 推理题，考智力，类似于小学奥数
3. 好几道计算机网络，如mac、子网掩码等，网络题的分值很高，共有25+
4. RAID（这次只考了1题，2分，亏我看了一个晚上啊 ）
5. NAS和SAN（也只考了一题，我也看了一个晚上....）
6. 146GB的SATA硬盘，10，000rpm，多长时间读完？
上面这些是部分选择题

问答：
1. RAM/ROM/FLASH RAM的区别
2. DNS和WINS的区别
3. 不会，名词都没见过
4. polling I/O和interrupt I/O
5. 计算机网络的

写作，supposing you are a technical supporter, please answer to the complaining letter with no less than 100 words.
there are two emails, the first one said that "your AAA product has severe bug and postponed our projects for about one month, we will not use your product and take other measures;" and the second email is "your AAB product cause data loss and our production has been breaked, please offer help as soon as possible."