Which of the following statements about RAID 10 are correct? (Multiple Choice)
A. RAID 10 applies to scenarios with demanding requirements for speed and fault tolerance.
B. RAID 10 requires at least four member disks.
C. In RAID 10, if two member disks in the RAID 1 group fail, data read proceeds normally.
D. Data is mirrored and then striped in RAID 10.
The HyperSnap functionality can be used to improve or optimize a company's backup strategy.
A. TRUE
B. FALSE
Based on the new industrial revolution, what are the changes in the trend of ICT? (Multiple Choice)
A. ICT trend is changing slowly with little significant changes.
B. The initial phases of ICT focuses on office automation but slowly changed towards changing business flows.
C. ICT is slowly being replaced by other new technologies such as IT and CT.
D. ICT has become the core in the production systems in the recent years.
The failure of an SSD is more predictable than that of other disk technologies.
A. TRUE
B. FALSE
Which of the following is NOT the characteristics of the active-active mode of a storage controller?
A. Two controllers process the I/O requests from application servers concurrently.
B. If a controller becomes faulty, the other takes over the work of the faulty controller without disrupting ongoing services.
C. The primary controller processes the I/O requests from application servers and the secondary controller is in the idle state.
D. The active-active mode achieves load balancing, full utilization of resources, and system performance improvement.
Statement 1: Deduplication reduces the amount of stored data. Statement 2: Deduplication is performed on file level only.
A. Statements 1 and 2 are both true.
B. Statement 1 is true and statement 2 is false.
C. Statement 1 is false and statement 2 is true.
D. Both statements 1 and 2 are false.
The components of a storage device are redundant, including controller modules, management modules, BBU modules, interface modules, power modules, and fan modules. Component redundancy ensures system reliability.
A. TRUE
B. FALSE
Statement 1: OceanStor Dorado systems are designed for high performance environments. Statement 2: OceanStor Dorado systems are so-called All Flash Arrays.
A. Statement 1 and 2 are true.
B. Statement 1 is true; Statement 2 is false.
C. Statement 1 is false; Statement 2 is true.
D. Statement 1 and 2 are false
Which of the following describe DAS? (Multiple Choice) A. A storage device connects to a host using the SCSI-based bus architecture.
B. DAS is unfavorable to storage resource sharing,
C. The host CPU has a work load when storing data.
D. Long-distance transmission is supported between a host and a storage device.
Statement 1: We have a a RAID5 protected group of disks. The protection level increases if we add more disks to the group. Statement 2: With a RAID 10 set the number of disks must be greater than 8 to always survive a dual disk failure.
A. Statements 1 and 2 are both true.
B. Statement 1 is true and statement 2 is false.
C. Statement 1 is false and statement 2 is true.
D. Both statements 1 and 2 are false.
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