Huawei Certified ICT Professional – Storage v5.5 (HCIP-Storage) — Question 20

When delivering a Huawei OceanStor Pacific scale-out storage project, an engineer introduced the end-to-end data integrity check technology of scale-out storage to the customer. Which of the following statements are false about this technology?

Answer options

• A. Block, NAS, and object services support end-to-end data integrity check, but the HDFS service does not.
• B. For silent data scenarios such as bit change and read offset, the end-to-end data integrity check technology supports logical block addressing (LBA) check of clusters and hosts.
• C. This technology enables the storage system to implement periodic background data integrity check. When the service load is heavy or service access is frequent, the system automatically starts periodic background data integrity check and self-healing.
• D. In this technology, write requests are checked at the system entry (virtual block service). User data is checked again in the object storage device (OSD) before being written to disks. Data is written to disks only after the data integrity check succeeds.

Correct answer: C

Explanation

Option C is incorrect because the technology does not automatically initiate periodic background integrity checks during heavy service loads or frequent accesses; instead, these checks are scheduled and do not interfere with normal operations. Options A, B, and D are accurate statements about the capabilities and operations of the end-to-end data integrity check technology.