IBM IBM Certified Specialist C4090-456

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IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. How does IBM XIV SSD technology provide longer life over competitors' use of SSD technology?

A) IBM SSDs are filled with write blocks of 1024kb in random I/O operations
B) common off-the-shelf components minimize the use of SSDs for write environments
C) hybrid algorithms combine features of SSDswith existing HDDsin the same unit
D) patented wear-leveling algorithm designed for SSD longevity

2. Which statement is true regarding XIV connectivity to IBM PowerVM VIOS clients?

A) NPIV is not supported.
B) NPIV must be used.
C) AIX, Linux and IBM i VIOS clients are supported.
D) Direct iSCSI connection to VIOS is supported.

3. 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) copying data on write so the production drives are not over stressed
D) limiting the total number of snapshots to a maximum of 128 active pairs

4. Where is the XIV VSS Provider software installed?

A) on the interface modules of the XIV system
B) as a plug-in to the XIV GUI
C) on servers or VMs connected to the XIV system
D) on the XIV maintenance module

5. A customer reports performance problems on an XIV Gen3 system. After further analysis of performance statistics, it appears that latency is high for reads but writes are acceptable. I/O size is generally small, with more writes than reads. Which option is likely to help the situation?

A) install ECoE adapters in the host
B) implementvolume striping on the host
C) enable IBM Easy Tier on the volumes
D) installSSDsintheXIVsystem

Solutions:

Question # 1 Answer: D

Question # 2 Answer: C

Question # 3 Answer: A

Question # 4 Answer: C

Question # 5 Answer: D