Which of the following can help prevent data loss on a RAID array in the event of a power failure？（）A、Using a RAID mirrorB、A battery backed write cacheC、Using RAID with parityD、A battery backed read cache

第1题：

A customer is building a database server， and the server does sequential write most of the time.  They are planning to use an IBM x445 and a ServeRAID-6M adapter.  Which of the following fault tolerant RAID levels will perform best for sequential write？（）

• A、RAID-5 with cache write back
• B、RAID-1E with cache write back
• C、RAID-10 with cache write thru
• D、RAID-50 with cache write thru

第2题：

An administrator is required to maintain maximum redundancy for 1TB of accounting files. Which of the following is the BEST option available to the administrator？（）

• A、Create a RAID 5 array using eight 300GB disks.
• B、Create a RAID 10 array using six 300GB disks.
• C、Create a RAID 5 array using ten 300GB disks.
• D、Create a RAID 10 array using eight 300GB disks.

第3题：

A new storage array must be configured for a database server. This array will store transaction logs that are always being written.  Which of the following RAID solutions would provide fault tolerance and fast write operations without the use of parity？ （）

• A、 RAID 0
• B、 RAID 3
• C、 RAID 6
• D、 RAID 10

第4题：

Which of the following RAID levels provides exceptional redundancy and no write penalties？（）

• A、RAID 1
• B、RAID 3
• C、RAID 6
• D、RAID 10

第5题：

Which of the following BEST describes RAID 1?（）

• A、Mirroring
• B、Striping
• C、Striping with parity
• D、Striping with mirroring

第6题：

A technician receives a laptop that is running out of battery power more quickly than expected.Which of the following can the technician do to correct the problem？ （）

• A、Note on the work order that the laptop is losing battery capabilities and the laptop must be replaced.
• B、Replace the battery by purchasing a new battery from the manufacturer.
• C、Stop using the battery and use alternating current （AC） power for the laptop.
• D、Replace the AC adaptor by purchasing a new adapter from the manufacturer.

第7题：

A customer has a file server with RAID-5 using 8KB random I/Os， with 67% reads and 33% writes.  How should the disk controller cache be configured for optimal performance？（）

• A、Use write-back cache
• B、Use write-back cache with battery backup
• C、Use write-through cache with disk caching enabled
• D、Use write-through cache with disk caching disabled

第8题：

A customer has a file server using RAID-5 with 8KB sequential write operations.  How should the disk controller cache be configured for optimal performance and data integrity？（）

• A、Use write-back cache with battery backup enabled
• B、Use write-through cache with battery backup enabled
• C、Use read-back cache with battery backup enabled
• D、Use read-through cache with battery backup enabled

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第13题：

A police department is interested in disk storage for a video application. Once the data is stored todisk it will be backed up to tape for long term storage. The array must have the highestperformance. Redundancy is not required. What RAID level will meet this requirement？（）

• A、RAID 1
• B、RAID 0
• C、RAID 5
• D、RAID DP

第14题：

Which of the following RAID levels can withstand the simultaneous loss of two physical drives in an array？（）

• A、 RAID 0
• B、 RAID 3
• C、 RAID 5
• D、 RAID 10

第15题：

An administrator is required to maintain space for 750GB of user data. Which of the following is the BEST option available to the administrator？（）

• A、Create a RAID 5 array using five 200GB disks.
• B、Create a JBOD using four 200GB disks.
• C、Create a RAID 1 array using six 200GB disks.
• D、Create a RAID 5 array using three 200GB disks.

第16题：

Which of the following would be the BEST configuration when using seven SCSI drives in order to have full fault tolerance？（）

• A、 RAID 0+1
• B、 RAID 0
• C、 RAID 1
• D、 RAID 5

第17题：

A file server is setup in a RAID 5 configuration.Recently there was a power failure in the server room while a user was transferring a document from one drive on the server to another drive on the same server.Unfortunately their UPS was in repair during this outage， and the file is now corrupt.Which of the following can be done to prevent this situation in the future？（）

• A、Increase the memory on the server.
• B、Reconfigure drives to a RAID 0+1.
• C、Install a battery backed write cache module in the system.
• D、Instruct the user to save to the local system instead of to the server.

第18题：

Which of the following RAID levels supports fault tolerance by writing parity to only one drive in the array？（）

• A、 RAID 3
• B、 RAID 5
• C、 RAID 6
• D、 RAID 10

第19题：

A banking customer is confused about RAID protection. Which of the following are characteristic of RAID-6？（）

• A、Double drive failure in an array and extremely high data fault tolerance
• B、Double drive failure in an array and more total storage capacity than RAID-5
• C、Extremely high data fault tolerance and higher performance than RAID-5
• D、Higher performance than RAID-5 and more total storage capacity than RAID-5

第20题：

You administer a SQL Server 2008 instance. You plan to deploy a new database that has the following capacity requirements: 275 GB for the database data file; 50 GB for the transaction log file. The storage array has six 100-GB disk drives available for the database. The disks are attached to a redundant array of independent disks (RAID) controller that supports RAID levels 0, 1, 5, and 10. The write performance of the transaction log needs to be maximized. The database and transaction log files must be protected in the event of a drive failure. You need to design the storage system. Which storage configuration should you use?（）

• A、A single RAID 5 volume
• B、A single RAID 10 volume
• C、A RAID 0 volume and a RAID 5 volume
• D、A RAID 1 volume and a RAID 5 volume

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