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Exam H19-308_V4.0 Topic 8 Question 34 Discussion

Actual exam question for Huawei's H19-308_V4.0 exam
Question #: 34
Topic #: 8
When user A modifies a file in the NAS system, which of the following operations can user B perform on the file?

Suggested Answer: B Vote an answer

In Huawei OceanStor NAS systems, data consistency and integrity are maintained through a mechanism known as File Locking. When User A opens a file for modification (a write operation), the storage system applies a "Write Lock" or an "Exclusive Lock" to that specific file. This lock prevents other users from performing any actions that would alter the file's metadata or content, as these concurrent changes would lead to data corruption or "lost updates".
Consequently, File deletion (Option A), File modification (Option C), and File renaming (Option D) are all blocked because they require write-level access or changes to the file system's directory structure that conflict with the active lock held by User A. However, File reading (Option B) is generally permitted unless User A has specifically requested an exclusive lock that bars all access. In standard CIFS/SMB and NFS configurations used by Huawei, multiple users can read a file while one user is writing, ensuring that information remains accessible without compromising the integrity of the file being updated.

by Quintion at May 01, 2026, 01:29 PM

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