英语阅读摘要试题练习(30)

　　49。Which RAID levels are supported through NT Server software? (Choose all that apply)

　　A。 RAID 1 B。 RAID 2 C。 RAID 3 D。 RAID 4 E。 RAID 5 A，E RAID 1 is disk mirror， RAID 5 is strip set with parity。

　　50。Assume that you are using five drives in a stripe set with parity。 Each drive consists of 500MB。 How much disk space will be used for data?

　　A。 1000MB B。 1500MB C。 2000MB D。 2500MB C Disk striping with parity will use the sum of one drive from the stripe set with parity to store the parity information in stripes across the stripe set。

　　51。You can have a minimum of ---- drives in a stripe set with parity and a maximum of ---- drives。

　　A。 2， unlimited B。 3， unlimited C。 2， 32 D。 3， 32 D

　　52。Your network uses a single master domain model， since all user accounts are stored on the PDC in your domain， you want to implement a fault tolerant system to protect the boot partition on the PDC。 Which of the following could you implement?

　　A。 Volume set B。 Mirror set C。 Strip set without parity D。 Strip set with parity B The strip set can be used for boot partition。 Volume set doesn"t support tolerance fault。

　　53。Which of the following hard disk management strategies support the best I/O performance?

　　A。 Stripe set with parity B。 Stripe set without parity C。 Disk mirror D。 Disk duplexing B Because (B) don"t support Fault Tolerance。

　　54。You want to increase the performance of your database using RAID with most saving disk space and fault tolerance。 What should you do? using RAID with most saving disk space and fault tolerance。 What should you do?

　　A。 Use duplexing B。 Use mirroring C。 Use stripe set D。 Use strip set with parity D Stripe set doesn"t support fault tolerance。 Strip set with parity will save more disk space。

　　55。You have the jobs to make new custom fault tolerance standard for your company。 Required results: Data integrity must be maintained when one disk fails。 Optional results: The fault tolerance method must not use additional processor time。 The read access time must be improved。 Proposed Solution: Introduce a stripe set with parity。 What does the proposed solution produce?