Huawei Updated H19-308_V4.0 Exam Questions and Answers by lawson

This statement is false because the Air Gap isolation zone is one of the most critical components of the Huawei OceanProtect ransomware protection solution. Huawei provides a comprehensive "four-layer" protection framework for data resilience, where Air Gap technology serves as the final, most secure layer.

TheAir Gapfeature creates a security isolation zone for backup data. Under normal operations, the replication link between the production backup storage and the isolation zone storage is physically or logicallydisconnected(the "gap"). The link only opens during a specific, scheduled window to replicate "clean" data from the production site to the isolation zone, and it is immediately closed once replication is finished. This ensures that even if ransomware compromises the main network and production storage, the data in the Air Gap isolation zone remains "invisible" and unreachable to the attacker. Combined with secure snapshots and WORM, this allows organizations to recover their business from an uninfected copy of the data, making Air Gap a core supported feature of the OceanProtect portfolio.

Direct-Attached Storage (DAS) is a traditional storage architecture where storage devices are connected directly to a host server. Huawei documentation defines the following key characteristics:

Direct Connection (Option C):DAS connects to the server via internal or external interfaces such as SATA, SAS, or SCSI, rather than through a storage network.

No Network Devices (Option A):Because it is a 1-to-1 connection, it does not require Fibre Channel switches or Ethernet switches to facilitate the link between the host and the storage. This makes it simple and cost-effective for small-scale deployments.

Block Storage Services (Option B):Like a SAN, DAS provides block-level access. The server’s operating system manages the file system (NTFS, EXT4, etc.) directly on the provided blocks.

While a server attached to DAS can share its files over a network (becoming a file server), the DAS itself is not a "File Storage Service" (Option D). In Huawei’s hierarchy, file services are the domain ofNAS (Network Attached Storage), which provides shared access to files via protocols like CIFS/SMB or NFS.

This statement is false because Huawei's new-generation OceanStor hybrid flash storage features a converged (Unified) architecture that supports Native NAS capabilities directly within the storage controllers. In older storage generations or with competitors, an external "NAS Gateway" or "Filer" was often required to provide file services on top of block storage.

Huawei’sHyperMetro for NASis a gateway-free active-active solution. The file systems are managed natively by the storage OS (OceanStor OS), allowing both SAN and NAS services to benefit from the same high-availability features. By eliminating the need for an external gateway, Huawei simplifies the network topology, reduces hardware costs (TCO), and minimizes latency by removing an extra processing hop for file data. This native integration allows for seamless cross-site active-active deployments for file protocols like CIFS/SMB and NFS, just as it does for block protocols.

Huawei’s data protection solutions, particularly the OceanProtect and BCManager suites, support a wide range of backup targets to accommodate various Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO).

Disk (Option C):This is the most common modern backup media (Disk-to-Disk or D2D), offering fast backup and recovery speeds. Huawei's OceanProtect is a dedicated high-speed disk-based backup storage.

Tape Library (Option D):Traditionally used for long-term archiving (D2D2T), tape remains a cost-effective and reliable "offline" storage medium for compliance and disaster recovery.

Disc (Option A):Optical discs (like Blu-ray) are used in specific archival scenarios where "Write Once" (WORM) physical media is required for regulatory purposes.

Cloud (Option B):Modern Huawei solutions supportBackup to Cloud, where data is deduplicated, compressed, and sent to an off-site object storage provider (like Huawei Cloud OBS) for cost-effective disaster recovery without the need for a physical secondary site.