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发布时间：2006-06-28 04:02     点击：

    Proposed solution : 1 ) Implement disk striping with parity.

    Map 1 to B : A stripe set with parity, along with a stripe set without parity, provides the fastest read operation out of all NT's disk sets. One optional result is satisified.

    Map 1 to C : In a stripe set with parity, the CPU is required to calculate the parity bits before writing them to disk. Therefore, the write operations of a stripe set with parity is the slowest out of all NT's disk sets. Optional result C is not satisified. Result of step 1 : Only one optional result is satisified. You can eliminate answer A.

    Map 1 to A : In a stripe set with parity, if one member fails than disk operations can continue. However, if two or more members fail, then disk operations will stop until the failed members are replaced and data is restord from tape backup.

    Count : The required result is not satisified. When the required result is not satisified, then there can only be one possible answer.

    Question 4. True or False. A volume set does not provide fault tolerance, but it does provide an increase in disk performance.

    a . True.

    b. False.

    A volume set is just a collection of free disk space. A volume set does not provide fault tolerance nor does it provide any increase in disk performance.

   Question 5. You have a Windows NT server, SMALLNT, in a resource domain that is running an SQL database. Users in all trusted domains are accessing the database on SMALLNT, which only has one hard drive. How can you implement a fault tolerance strategy on SMALLNT?

    a . By adding two more hard drives and implementing RAID level 1.

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