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单选题 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

多选题 Which TWO of the following are required to use the hot-swap memory feature of the x445 while being operating system independent?()

A

Memory Mirroring must be enabled in the BIOS.

B

Redundant bit steering must be enabled in the BIOS.

C

DIMMs must be the same size and speed as the DIMMs being replaced.

D

Memory Mirroring must be enabled in the operating system.

E

DIMMs can be of same size or larger or same speed or faster.

单选题 A customer uses an IBM xSeries x366.  They experienced downtime when the NIC failed earlier this year.  Their Windows 2003 server needs to be accessible all the time, at the highest speed possible.  Two adapters are currently installed in the x366.  Which of the following is the procedure to obtain the best performance and ensure network functionality in case of NIC failure?()

A

Install four NICs and configure load balancing adapter teaming.

B

Install four NICs and configure adapter failover teaming.

C

Install seven NICs and configure load balancing adapter teaming.

D

Install one extra NIC to team with the internal adapter and configure failover teaming.

单选题 A customer is considering replacement of twenty older 4U and 6U rack-based servers with one IBM x366 Server running VMWare ESX attached to one DS4300.  Which of the following represents a reduction in Total Cost of Ownership (TCO) for the customer?()

A

Reduction in operating system software licensing and application costs

B

Reduction in floor space and hardware cost saving

C

VMWare is licensed per system so no extra charge for SMP support

D

No single point of failure, reducing downtime

单选题 A company wants a solution to consolidate their storage using the DS4000 series and implement a disaster recovery solution across two data centers linked by fibre to duplicate the production environment.The customer requires a solution with the least amount of system administration.  Which configuration would provide the best solution?()

A

Implement one DS4400 at each location connected to the fibre link and use Remote Volume Mirror (RVM).

B

Implement a DS4400 at each location using FlashCopy option and use host based replication to synchronize the sites.

C

Implement a switched fabric using redundant SAN switches with a DS4300 using RVM option at each location.

D

Implement a switched fabric using SAN switches connected via ISL with a DS4300 using RVM option at each location.

单选题 Which of the following is a function of the XceL4 Cache?()

A

It places frequently accessed data close to the processor to help deliver faster performance.

B

It replaces L3 cache memory.

C

It speeds up processor performance by purging the current set of instructions and freeing them up to work on the next set of instructions.

D

It allows the system to address more than 16GB of memory.

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