EMC技术支持类 部分原题

dxh2131

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?