IBM C4090-451 Actual Free Exam Questions & Community Discussion

Exam Code/Number: C4090-451
Exam Name/Title: Midrange Storage Technical Support V3
Certification Provider: IBM
Corresponding Certification: IBM Certified Specialist

Exam Questions: 150
Updated On: Sep 10, 2026

Question #9

A customer's data center has a Storwize V3700 and a Storwize V7000. Recently they added a DS3E524, The customer wants to implement a new manufacturing software solution on the DS3524 and utilize the IBM Real-time Compression (RtC) function.
Which statement is true regarding the DS3524 and RtC?

A. The Storwize V3700 can perform RtC on the DS3524 when it is externally virtualized.

B. The DS3524 must be virtualized behind the Storwize V7000.

C. The DS3524 must have 4 SSDs installed and an activated RtC license.

D. The DS3524 performs RtC natively.

Discussion 0

Correct Answer: B Vote an answer

Question #10

A customer has two locations, each with a storage system connected to a Fibre Channel SAN. They want to replicate between the storage systems across their WAN, and the storage systems can replicate only over Fibre Channel.
Which of the following protocols would be used?

A. Ethernet

B. FCIP

C. Fibre Channel

D. iSCSI

Discussion 0

Correct Answer: B Vote an answer

Question #11

An IBM Business Partner is proposing a Storwize V7000 as part of a solution to their customer. The customer is not currently an IBM Stowize V7000 user.
Who is responsible for starting a Technical and Delivery Assessment (TDA) review process?

A. The IBM Business Partner

B. The customer

C. The IBM distributor

D. The IBM sales representative

Discussion 0

Correct Answer: A Vote an answer

Question #12

A customer has purchased some new LTO-5 drives to replace their existing LTO-4 drive technology. They wish to re-use some legacy LTO-3 and more recent LTO-4 tape cartridges.
Which of the following statements is true regarding the re-use of cartridges?

A. LTO-5 drives cannot read from LTO-3 written cartridges

B. LTO-5 drives cannot read from LTO-4 written cartridges

C. LTO-5 drives cannot write to LTO-4 written cartridges

D. LTO-5 drives cannot write to LTO-3 written cartridges

Discussion 0

Correct Answer: D Vote an answer

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Question #13

What characteristics do iSCSI and FCoE have in common?

A. Both include IP headers and Ethernet (or other media) headers with every frame that adds payload

B. Both require a gateway function, usually called an FC Forwarder (FCF)

C. Both protocols can use the Converged Enhanced Ethernet (CEE) to deliver lossless traffic over Ethernet

D. Both are limited to 1 Gbps traffic

Discussion 0

Correct Answer: C Vote an answer

Question #14

Which option is a chargeable feature in the Storwize V7000?

A. Real-time Compression

B. FlashCopy

C. Easy Tier

D. Thin Provisioning

Discussion 0

Correct Answer: A Vote an answer

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Question #15

A customer has a Storwize V7000 and they are interested in deploying an expert integrated solution in second data center. They intend to replicate to the second data center and virtualized their external storage products.
Which storage product will meet the requirements for the new site?

A. N6270

B. Flex System V7000

C. Storwize V3700

D. N3240

Discussion 0

Correct Answer: B Vote an answer

Question #16

What is the maximum size LUN from an external disk array that the Storwize V7000 will recognize?

A. 1 PB

B. 2048 TB

C. 256 TB

D. 2 TB

Discussion 0

Correct Answer: D Vote an answer

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