EMC(易安信)为一家美国信息存储资讯科技公司， 主要业务为信息存储及管理产品、服务和解决方案。EMC公司创建于1979年，总部在马萨诸塞州霍普金顿市。2003年，EMC收购了VMware。2015年10月，EMC被DELL收购。

今天小编要与大家分享的是：EMC技术支持相关笔试题。具体内容如下，欢迎阅读：

EMC技术支持类部分笔试题：

1 What are the differences between RAM、ROM and Flash RAM?

2 Please explain the following terms.

RAID 0

RAID 1

RAID 3

RAID 5

RAID 6

3 What’s the difference between DNS and WINS ?

4 For a SATA 160 Gb 10,000rpm disk drive, what is the average amount of time it takes for the data to be read?

5 What is a Race Condition? Please provide an example of a Race Condition.

6 Small Page Size gives you Small Page Table (T/F)

Small Page Size generates more LTB( Translation Lookaside Buffer) (T/F)

Small Page Size causes less Page Faults (T/F)

7 Please compare polling I/O with interrupt-drive I/O .

In what situation would you favour one technique over the other?

8 What is the difference between NAS and SAN storage?