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IBM C4090-958 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Apply Product Information | 45% | - Knowledge of IBM storage products (DS8000, XIV, SONAS) - Compare IBM solutions to competitive offerings - Tools and processes for customer insight |
| Installation and Post Installation Support | 6% | - Facilitate hardware setup - Recommend system management tools |
| Evaluate and Establish Customer Environment and Plans | 37% | - Assess current customer environment - Gather technical requirements and TCO analysis - Differentiate product features and architectures |
| Installation Planning and Migration | 12% | - Identify migration risks - Create implementation plans |
IBM Enterprise Storage Technical Support V3 Sample Questions:
Question 1
A technical specialist is in a discussion with a customer regarding changing the customer's storage environment from EMC to IBM. They are describing the environment.
Which host environment causes the most design challenges?
A. Microsoft Cluster Server
B. Unisys mainframe
C. Windows boot from SAN
D. AIX including versions back to 4.3
Question 2
A customer with numerous open system servers is using a single DSSSOO system with Easy Tier enabled. Storage performance for a specific clustered server needs to improve for end-of-month and end-of-quarter processing. The customer requires minimal disruption to operations.
Which feature or action should the technical specialist recommend to the customer to improve performance for the clustered servers?
A. Enable and configure I/O Priority Manager
B. Install a megapack of SSDs
C. Adjust the cache block size used by the DS8800
D. Increase the installed cache of the DS8SOO
Question 3
A customer is planning to install two XIV storage systems with synchronous mirroring. The two storage systems will be in separate data centers approximately 50 km apart. The technical specialist has been asked what guidelines should be followed to avoid degraded host I/O.
Which guideline should the technical specialist discuss?
A. use interval schedule named "Never" to configure the synchronous mirror
B. the link between sites must support minimum speed of 50 Mbps per FC connection
C. the link between sites must support the full peak host write rate
D. if a single link is used between sites, then only connect one module per XIV system to each other
Question 4
A customer wants to implement a 3-site continuous copy solution with three D38800 systems. A three-site Business Continuity (BC) license and TotalStorage Productively Center for Replication (TPC-R) are already installed.
Which action should be completed before using the TPC-R GUI to configure the Metro/Global Mirror?
A. Ensure paths exists between the 3 DS8800 systems
B. Configure the CIMON agent on the DSS800
C. Select the action Start H1-'H2->H3
D. Add copy sets to the Metro/Global Mirror session
Question 5
What happens when XIV with SSD caching installed suffers an SSD failure?
A. The degraded module reads from its DRAM cache and disk, and all small read misses are redirected to the secondaries.
B. The complete module with the failed SSD cache is taken off-line.
C. SSD caching continues, but is unbalanced as one module has no SSD cache.
D. SSD caching is disabled on all modules.
Solutions:
| Question 1 Answer: B | Question 2 Answer: D | Question 3 Answer: C | Question 4 Answer: A | Question 5 Answer: B |
