Free H13-624 sample questions

Correct answer: DPU-based SmartNIC for storage service offload

The DPU-based SmartNIC is designed to offload storage protocol processing (like NVMe-oF) from the host's CPU. By handling these tasks on the NIC itself, it bypasses the host OS kernel and network stack, significantly reducing end-to-end latency, which is critical for HFT applications. SmartMatrix ensures inter-controller communication, FlashLink optimizes I/O within the array, and HyperMetro provides availability, but only the DPU-based SmartNIC directly addresses host-side latency offload.

Correct answer: N+2

Erasure coding policies are defined in an N+M format, where N is the number of data chunks and M is the number of parity chunks. The value of M determines how many node failures the system can tolerate. To tolerate two simultaneous node failures, an M value of 2 is required, making N+2 the correct policy.

Correct answer: Chunks (CKs)

In Huawei's RAID 2.0+ architecture, physical disks are divided into fixed-size data blocks called Chunks (CKs). These Chunks are the basic units for creating Chunk Groups (CKGs), which form the basis of the virtualized storage pool. LUNs are then allocated from the pool using units called Extents.

Correct answer: Deploy OceanStor Dorado arrays in each data center configured in a HyperMetro active-active cluster for the active tier. For the archive tier, deploy an OceanStor Pacific cluster with ransomware protection enabled.

This architecture correctly addresses all requirements. OceanStor Dorado provides the high IOPS and low latency needed for the active PACS data. HyperMetro provides an active-active cluster between the two sites, achieving the RPO=0 requirement. OceanStor Pacific is the ideal scale-out solution for the large, cost-sensitive archive tier, and its ransomware protection features meet the security requirement. Asynchronous replication would not meet the RPO=0 requirement, and using a single Pacific cluster for both workloads would not provide the required low-latency performance for the active tier.

Correct answers: The built-in backup batteries (BBUs) or supercapacitors are faulty or have failed.; A synchronous remote replication link is experiencing high latency or is disconnected.

Correct answer: False

This statement is false. SmartTier migrates data based on I/O activity or 'heat' of the data extents, not the block size of the I/O. It identifies frequently accessed (hot) data and moves it to the higher-performance tier (SSD) and infrequently accessed (cold) data to the lower-performance, high-capacity tier (HDD).

Correct answer: SmartCache

SmartCache is specifically designed to use SSDs as a large secondary read cache to accelerate random, read-intensive workloads like databases. It is a cost-effective way to boost performance without migrating all data. SmartTier migrates data, which is a different mechanism and may not be as responsive for sudden peaks. SmartQoS manages performance, but does not accelerate it. HyperSnap is for data protection.

Correct answer: Low data reduction from SmartDedupe, high reduction from SmartCompression.

SmartDedupe works by finding and eliminating duplicate data blocks. If the data is non-repetitive, deduplication will yield a very low reduction ratio. SmartCompression works by reducing the size of individual data blocks. If the data is highly compressible, compression will yield a high reduction ratio. Therefore, the expected outcome is low reduction from deduplication and high reduction from compression.

Correct answer: Creating a local user and password on the storage array for authentication.

When a storage array providing CIFS shares is not joined to an Active Directory domain, it operates in a workgroup mode. In this mode, it relies on local user accounts for authentication. The administrator must create a local user account on the storage system with a username and password that matches an account on the Windows server attempting to connect.

Correct answer: To provide a full-mesh, high-speed interconnect between controller enclosures.

SmartMatrix is the high-availability, full-mesh back-end interconnect architecture used in high-end OceanStor Dorado arrays. It ensures that if one controller enclosure fails, the other enclosures can seamlessly take over, providing high performance and reliability. It facilitates communication and data sharing between all controllers in the system.