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IBM C4090-456 Exam Overview:
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM XIV Storage System Technical Solutions V4 |
| Exam Number: | 000-456 / C4090-456 |
| Certificate Validity Period: | 2 years |
| Real Exam Qty: | 60-70 |
| Exam Price: | $200 USD |
| Exam Duration: | 90 minutes |
| Passing Score: | 65% |
| Available Languages: | English |
| Exam Format: | Multiple select, Multiple choice |
| Recommended Training: | IBM XIV Storage System Technical Training |
| Exam Registration: | IBM Certification Registration Prometric Testing |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Proctored onsite at Prometric test centers |
| Pre Condition: | No formal prerequisites recommended; storage experience helpful |
| Official Syllabus URL: | https://www.ibm.com/training/certification |
IBM C4090-456 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| XIV Storage System Overview and Architecture | 17% | - Business value and competitive advantages - Grid-based architecture and design principles - System components and hardware models |
| Data Protection and Replication | 15% | - Synchronous and asynchronous mirroring - Consistency groups and snapshots - Disaster recovery concepts |
| Performance and Troubleshooting | 12% | - Performance characteristics - Basic troubleshooting procedures - Monitoring and optimization |
| Installation and Planning | 21% | - Capacity planning and configuration - Technical Delivery Assessment (TDA) - Environmental and site requirements |
| Provisioning and Management | 18% | - Volume management and snapshots - GUI and XCLI administration - Capacity on Demand (CoD) - Storage pools and thin provisioning |
| Interoperability and Virtualization Integration | 17% | - Microsoft VSS and Hyper-V support - SAN Volume Controller (SVC) integration - Multipathing and host connectivity - VMware integration including VAAI |
Studying for C4090-456 Without Paper and Without Borders
- Data Protection and Replication (15%)
- Performance and Troubleshooting (12%)
- Installation and Planning (21%)
IBM XIV Storage System Technical Solutions V4 Sample Questions:
What is a benefit to IBM's XIV SSD transparent read cache?
- A. real-time cache algorithm; not policy-based
- B. SSD drives add usablecapacitywithout user intervention
- C. SSD read cache is a separate tier
- D. performance improvement in sequential reads
Correct Answer: A 🗳️
Compared to other IBM storage offerings, which of the following is unique functionality on an XIV system?
- A. ability to take snapshots
- B. IP based replication
- C. reduced single points of failure
- D. prevents hotspots
Correct Answer: D 🗳️
A technical specialist is planning an XIV installation. Where can the worksheets needed for installation be found?
- A. IBM Fix Central
- B. IBM XIV Host Attach Redbook
- C. IBM XIV Gen3 Architecture, Implementation and Usage Guide
- D. IBM XIV Storage System Planning Guide
Correct Answer: D 🗳️
Which of the following occurs in the event of an SSD failure in an XIV system?
- A. The module containing the failed SSD is phased out and all data is redistributed to the remaining modules.
- B. All cached write data on the SSD is destaged to disks and SSD caching is disabled until the failed SSD is replaced.
- C. The failed SSD's contents are rebuilt onto the hot spare SSD in the maintenance module.
- D. The extended read cache workload of the module with the failed SSD is redistributed to the remaining modules.
Correct Answer: D 🗳️
XIV hardware architecture optimizes the usage of snapshots by:
- A. a redirect-on-write operation using all drives in any snapshot process
- B. limiting the total number of snapshots to a maximum of 128 active pairs
- C. copying data on write so the production drives are not over stressed
- D. offering the possibility to isolate the drives used for snapshot target space
Correct Answer: A 🗳️
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