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IBM C4090-456 考試大綱主題:

最新的 IBM Certified Specialist C4090-456 免費考試真題：

問題 #1

Which of the following statements is true of the XIV architecture?

A. In a fifteen module XIV, fifteen physical disks are allocated as hot spares.
B. Storage Pools are used to group volumes with similar performance requirements.
C. For each mirrored 1 MB partition, one copy is always on an interface module.
D. Every logical volume is spread over every physical drive.

問題 #2

Which statement is true regarding XIV virtualization and the advanced snapshot mechanism?

A. A volume and its corresponding snapshots can be part of several storage pools.
B. A volume and its corresponding snapshots can be part of several consistency groups.
C. A volume's snapshot can be copied to a volume in another storage pool.
D. A volume can have one snapshot only.

問題 #3

What is the fastest way to see which volume is receiving the most IOPS on the XIV?

A. opentheXIV GUI and checkthe volume view
B. openXIVTopinthedefaultview
C. open XIV GUI and select the first 12 volumes, and then next 12 and so on
D. run XCLI command xcii volume_max_iops_list

問題 #4

XIV hardware architecture optimizes the usage of snapshots by:

A. a redirect-on-write operation using all drives in any snapshot process
B. offering the possibility to isolate the drives used for snapshot target space
C. limiting the total number of snapshots to a maximum of 128 active pairs
D. copying data on write so the production drives are not over stressed

問題 #5

How does the data migration feature enable the smooth transition of a host to an XIV system?

A. By enabling everyXIV PC portto be both target and initiator so that host requests are received bythe XIV and retransmitted to the legacy storage system simultaneously.
B. By deploying an XIV unique implementation of VMware's Storage vMotion that has been engineered to support Linux and Microsoft hosts natively.
C. By using the XIV Host Attachment Kit (HAK) migration software to send concurrent writes to the legacy storage system and the IBM XIV simultaneously, while copying the older data across in the background.
D. By connecting the host to the XIV, which then provides access to the data on the legacy storage system while transparently copying the data across in the background.

問題與答案：