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  5. HCIP-Storage V5.5 Questions and Answers

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Questions # 21:

Huawei flash storage supports_____. That is, the existing storage system can be used to meet customers' Increasing requirements by continuously adding storage components.

Options:

Expert Solution
Questions # 22:

When delivering a Huawel 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?

Options:

A.

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.

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.

Block, NAS, and object services support end-to-end data integrity check, but the HDF5 service does not.

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.

Expert Solution
Questions # 23:

When delivering a Huawel OceanStor Pacific scale-out storage project, Huawei engineers Introduced the end-to-end load balancing capabllty supported by the scale-out storage to the customer. Which of the following statements are false about the load balancing capability?

Options:

A.

The route-based hash policy of the persistence layer is different from that of the service layer. The route-based hash policy of the persistence layer is implemented based on weights, while that of the service layer is implemented based on STORE DHT.

B.

Unstructured and structured services at the service layer have different route-based hash policies. However, both unstructured and structured services are mapped based on the same basic routing model.

C.

In load balancing at the semantic layer, a directory is divided into 256 partitions by default and can be adjusted to a maximum of 512 partitions.

D.

Routes at the service layer balance storage space and accelerate fault reconstruction.

Expert Solution
Questions # 24:

An engineer can use the ______ tool to install software for Huawei storage systems. This tool can collect and evaluate storage compatibility information in one-stop mode and supports batch installation of the UltraPath software, improving the software installation efficiency.

Options:

Expert Solution
Questions # 25:

Assume an industry customer purchased several Huawei flash storage devices for service deployment. During routine management, an engineer found that the host bus adapter (HBA) driver version of the host is outdated and the number of concurrent HBAs was insufficient. As a result, the latency on the host differs greatly from that on the storage side. Which of the following measures can the engineer take to optimize performance?

Options:

A.

Use the management software provided by the HBA vendor to query and modify the number of concurrent HBAs.

B.

Upgrade the HBA driver to the latest version.

C.

Change the load balancing algorithm of the multipathing software to min-task.

D.

Change the cache prefetch policy to constant prefetch.

Expert Solution
Questions # 26:

A faulty storage hardware module needs to be replaced. Which of the following components can be replaced online?

Options:

A.

Controller enclosure backplane

B.

BBU

C.

Disk

D.

Interface module

Expert Solution
Questions # 27:

An industry customer has purchased a Huawei OceanStor Pacific scale-out storage system for service deployment. An engineer configures NFS file sharing on the storage system through NFSv4.0. Which of the following commands can the engineer use to switch the user view to the developer view on the command line interface (CLI)?

Options:

A.

change domain ad_manager operation=develop

B.

change dns general address=develop

C.

change user_mode current_mode user_mode=developer

D.

change nas_Idap advanced_config

Expert Solution
Questions # 28:

The_____feature provided by the OceanStor Pacific series storage system supports OPS and bandwidth upper limit control based on namespaces, accounts, and client IP addresses.

Options:

Expert Solution
Questions # 29:

The performance of a storage system can be measured by multiple indicators. In application scenarios where the I/O size is greater than or equal to 64 KB, the ________ performance indicator is the main concern for storage performance.

Options:

Expert Solution
Questions # 30:

A financial customer purchases a Huawei flash storage device for subsequent service deployment. During storage configuration, an administrator finds that LUNs mapped to an application server cannot be detected on the application server. Which of the following are possible causes of this exception?

Options:

A.

The storage pool is faulty.

B.

In HP-UX, the application server does not have a LUN mapping whose host LUN ID is 0.

C.

In UNIX or Linux, a device node file is lost.

D.

The serial port connection parameters are incorrectly set.

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