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IBM C4090-456 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Installation and Configuration | - Storage provisioning and volume configuration - Initial system setup and deployment |
| Monitoring and Performance | - Performance tuning and optimization - System monitoring and alerts |
| Troubleshooting and Maintenance | - Firmware and system updates - Common system issues and resolution |
| IBM XIV Storage System Architecture | - Grid architecture and scalability concepts - XIV system components and design principles |
| Administration and Management | - GUI and CLI management tools - User and access management |
| Data Protection and Replication | - Snapshot and copy services - Remote mirroring and replication concepts |
IBM XIV Storage System Technical Solutions V4 Sample Questions:
What is a benefit to IBM's XIV SSD transparent read cache?
- A. SSD read cache is a separate tier
- B. real-time cache algorithm; not policy-based
- C. performance improvement in sequential reads
- D. SSD drives add usablecapacitywithout user intervention
Correct Answer: B 🗳️
XIV hardware architecture optimizes the usage of snapshots by:
- A. a redirect-on-write operation using all drives in any snapshot process
- B. copying data on write so the production drives are not over stressed
- C. limiting the total number of snapshots to a maximum of 128 active pairs
- D. offering the possibility to isolate the drives used for snapshot target space
Correct Answer: A 🗳️
Which statement is true regarding XIV virtualization and the advanced snapshot mechanism?
- A. A volume and its corresponding snapshots can be part of several consistency groups.
- B. A volume can have one snapshot only.
- C. A volume and its corresponding snapshots can be part of several storage pools.
- D. A volume's snapshot can be copied to a volume in another storage pool.
Correct Answer: D 🗳️
Which of the following external power inputs is available for full power redundancy of a six module XIV system?
- A. six 20 amp, single-phase
- B. four 30 amp, single-phase
- C. four 20 amp, three-phase
- D. two 30 amp, three-phase
Correct Answer: D 🗳️
When is the best time to complete a TDA for XIV?
- A. during the pre-sales activity before the hardware is ordered
- B. after the XIV hardware is installed
- C. before the customer starts to use the XIV hardware
- D. after the XIV hardware is ordered
Correct Answer: A 🗳️
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