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IBM C4090-453 Exam -

Free C4090-453 Sample Questions:

Q: 1
The customer’s data center has an elevator with a maximum load capacity’ of 2200 lb (1000 kg). A Disk Magic study has proved that the performance requirements of the workload are at Enterprise
class levels.
What should be recommended?
A. A standard D68800. The Customer Engineer can then remove parts until the elevator load capacity’ is not exceeded.
B. Redesign the solution to use modular systems, like IBM Storwize V7000, which could be delivered in lighter shipments.
C. Configure the feature code on DS8800 which allows a shipping weight reduction.
D. Order a DS8800 with minimal disks and then MES upgrade with additional capacity’ to the customer’s requirements.
Answer: C

Q: 2
What factor in the architecture of the DSS000 allows for concurrent microcode updates to be performed?
A. Control-unit Initiated Reconfiguration support
B. Subsystem Device Drivers
C. Call Home and Dial-in support
D. Built-in redundancy
Answer: D

Q: 3
Which statement about I/O Priority Manager on the DS8000 is true?
A. It needs at least two tiers of disks to work
B. It can be more granular on z/OS than any other operating system
C. It allocates cache on 4K boundaries to improve performance
D. It can interface with VMware VAAI primitives to improve performance
Answer: B

Q: 4
Which of the following items would suggest that the use of space efficient FlashCopy for the Global Mirror secondary volume could present an issue?
A. The customer is using Tivoli Storage Productivity Center for Replication to manage Global Mirror
B. The workload has a large amount of heavy sequential write activity
C. There is a long distance between the primary and secondary sites
D. There are multiple primary disk subsystems in the Global Mirror session
Answer: B

Q: 5
As with all types of technology. System z software occasionally needs to have maintenance applied to it to fix errors or to support enhanced functionally.
In the System z environment, this maintenance is known as:
A. Service Level sets
B. APAR5 and PTE5
C. MLs and Patches
D. Non-disruptive Code Loads
Answer: B

Q: 6
What should be used to most effectively model System z customer workload for implementation on IBM DS8800?
A. SMF Analyzer
B. Disk Magic only
C. RMF Magic only
D. RMF Magic and Disk Magic
Answer: D

Q: 7
A customer has submitted an REP for which a DS8870 is the preferred solution to support their VMware environment. They require support for VAAI Extended Copy.
What should the technical specialist advise this customer?
A. VAAI is only a host function so any disk subsystem can be considered
B. DS8870 supports the VAAI functionality required by this customer
C. A SAN Volume Controller must be proposed along with the DS8870 to provide VAAI support
D. A DS8870 with FlashCopy should be proposed
Answer: B

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