H13-611_V4.5 HCIA-Storage V4.5 Question and Answers

Description 1: A RAID consisting of several hard disks is called a physical volume.

Description 2: RAID 5 can improve the read and write rate and provide a certain degree of data security, but when there is a single hard disk failure

At this time, read and write performance will be greatly reduced.

What are the current challenges of disaster recovery? (Multiple choice)

CKG is composed of multiple CKs on different hard disks of different types in the hard disk domain.

What technology is used to convert Thick LUN and Thin LUN?

Select the correct statements that describes the properties of Distributed Storage Architecture.

(Multiple Choice)

Storage refers to physical devices that is able to store and save data for user access.

Dual-switch networking is widely applied in Fibre Channel SANs. Which of the following are its characteristics? (Multiple Choice)

HyperReplication for HUAWEI OceanStor can use FC links the data centers. ISCSI links are not supported.

Which of the following allows direct physical access to end users?

In HUAWEI OceanStor,which of the following statements about mapping a snapshot is true?

Statement 1: A disk drive with a high latency performs better than a disk drive with a low latency. Statement 2: A smaller seek time means that the disk performs better.

What are the main elements of the disaster recovery system? (Multiple choice)

Which of the following statements is incorrect?

Compare NAS storage and SAN storage in terms of principle, performance, cost, sharing, and application scenarios. Which of the following descriptions is correct? (Multiple choice)

A, NAS performance is higher than SAN, cost is higher than SAN

B, SAN is mainly suitable for file sharing scenarios, sharing is more convenient

C. NAS is a storage device with a file system. Sharing files through the network is equivalent to a host in the network.

D. SAN is a high-speed fiber-connected disk network. It provides disk resources to the host. It has no file system and is equivalent to a network. A hard drive in the

It is a device which manages the physical disk drives and presents them to the users as logical units. Which of the following device fits the above description?

Which of the following statements about Disaster Recovery is NOT true?

In a Red Hat Linux 5 operating system, which command is used to mount the sdb5 in the dev directory to the sdb5 in the mnt directory?

Which of the following cloud service model deals with providing storage, network servers and virtualization of resources?

The recovery point objective (RPO) is used to identify how much time lies between two backups.

Big Data refers to the process of collecting/ processing and analyzing vast amount of data and information to gain valuable insights.

Which of the following occurs after multipathing software is installed on a host? (Multiple Choice)

Currently all OceanStor V3 devices support SAS at 12 Gb/s.

Cloud computing business models are: (multiple choices)

Statement 1: If possible it is always advised to make only Full Backups

Statement 2: LAN free backups typically run slower than LAN based backups.

The port selected by the IP drift strategy has nothing to do with the port rate, only related to the location of the port, the order of selecting the port

Yes?

1. Port at the same position of the remote controller

2. Ports at other locations of the peer controller

3. The port of the local controller

Regarding the benefits and necessity of enterprises doing disaster recovery system construction, is the following statement wrong?

The server with Linux operating system installed accesses the disk array based on the RAID 5 strategy.

The order is:

When a company's customers need to complete data migration between devices, what features can be used to complete? (Multiple choices)

What are the following types of disaster recovery at the host layer? (Multiple choice)

Xiao Wang, an employee of a company, did the following in the company's storage system: 9:00 Take a snapshot of LUN A and activate it

Alive, all the data of the snapshot LUN and the source LUN were modified at 10:00, and the snapshot was rolled back at 11:00.

The following instructions are correct? (Multiple choice)

The dual switch network design is widely used in the FC SAN environment. The following description of the dual switch network redundancy design,

Which ones are correct? (Multiple choice)

When the Windows copy program copies local files to the file system, the file system block size of the HUAWEI OceanStor storage system is the default, which ensures the full use of storage space.

A, right B, wrong answer: B

The SmartCache feature in HUAWEI OceanStor series products can only improve read performance, not write performance.

Database data belongs to structured data, and audio and video data belong to unstructured data.

The growth comes mainly from the rapid growth of unstructured data.

In the Huawei storage system using RAID2.0+ technology, regarding the difference between Thick LUN and Thin LUN, the following

Which description is correct? (Multiple choices)

OceanStor V3 series storage can only support iSCSI or FC host links separately, not both

Connect to the network.

Description 1: There is an interconnection line between the controllers of the storage system. If the controller is broken, it belongs to it.

The working controller of the managed LUN will be switched to a working controller.

Description 2: The working controller and home controller of a LUN must be unified into one controller.

Which of the following is the correct configuration process for HUAWEI OceanStor storage system?

What conditions should be considered for device backup bandwidth? (Multiple choice)

A, the size of the initial data

B. The daily quantity increment

C. Backup cycle

D. Backup staff

Regarding data-level, application-level and business-level disaster recovery, is the following statement correct?

Which statement about SCSI is false?

An enterprise needs to purchase backup media for data backup. To inherit the enterprise’s original tape backup architecture and strategy, it is necessary to mention

High backup speed. What kind of backup media did this enterprise purchase?

A company purchases storage devices for new services. The new services do not require high access speed of storage devices. In this scenario, the IP SAN can be used for networking deployment.

A snapshot is a point-in-time copy of the source data that serves as a data backup accessible to hosts.

DAS is a storage architecture without scalability.

Which ports in the FC switch can communicate with each other is determined by the zone.

An Internet company plans to purchase a storage device to store archived service data and online transaction data. SSDs are expensive and HDDs cannot meet the performance requirements of online services. Which features CANNOT solve this problem? (Select All that Apply)

Which of the following are the data transmission rates that can be configured on the FC ports on the FC switch in FC SAN given that your cable and SFP supports it? (Select All that Apply)

Which of the following statements correctly describe the improvements of SAS technology compared to SCSI? Select All that Apply.

All components of storage devices use the redundancy design to ensure system reliability. Redundant modules include controller modules, management modules, BBU modules, interface modules, power modules, and fan modules

The following two descriptions are correct:

Description 1: The maintenance cost of traditional PC is usually lower than that of desktop cloud.

Description 2: In cloud computing, data is stored and managed centrally.

The RTO in the disaster recovery system measurement index refers to the point in time when the system and data must be recovered after the disaster begging.

A device has only one WWNN number, but it can have multiple WWPN numbers.

SmartKit is an O&M tool that integrates cloud computing, server, and storage. It cannot be used to monitor third-party devices.

The following describes RAID 10, which are correct? (Multiple choice)

What is the function of hot spare in storage?

Which of the following is not one of the working principles of QoS?

Which of the following is incorrect regarding the differences of IP SAN and FC SAN?

There are two descriptions about fiber switches below, the correct ones are:

Description 1: A port can be in multiple zones.

Description 2: A switch can have multiple zones.

The initial capacity allocation strategy of HUAWEI OceanStor storage system defaults to automatic allocation.

The following description is correct: (multiple choice)

In Huawei OceanStor storage devices, coffer disks are an optional configuration because the write cache has mirrors, and

There is a backup power supply for the controller.

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Which of the following statements about Huawei RAID 2.0+ are correct? (Multiple choice)

In a Linux system, if the representation of a SCSI target is: 2:1:0:3, the following description is correct: (this question For multiple choice questions)

What are the following descriptions of the three iSCSI connection methods?

In the FC protocol, which of the following layers is responsible for encoding and decoding?

A, FC-0

B, FC-1

C, FC-2

D, FC-3

What is the correct description of the advantages of Huawei RAID 2.0+?

Regarding the description of Huawei OceanStor storage system safe disk, which of the following is correct? (Multiple choice)

What are the challenges facing traditional data centers? (Multiple choice)

According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)

In the Huawei storage system, which of the following is true about the characteristics of virtual snapshot LUNs?

Snapshots used for backup purposes should be set to read-only to prevent modification by other applications and affect the backup data

consistency.

Huawei focuses on IT infrastructure in the ICT field.

The following description of NAS is correct:

Description 1: NAS is always based on file sharing.

Description 2: The distance of the network connection affects the performance of the NAS.

A, Description 1 and Description 2 are correct.

B. Description 1 is correct, description 2 is incorrect

C. Description 1 is wrong, description 2 is correct

D, description 1 and description 2 are wrong

Which of the following operations does a small employee A of a bank need to do in the first maintenance project of data center storage?

Distributed object storage has a unified namespace, and supports online expansion.

The following different types of SSD disks have the lowest unit capacity price:

A, SLC

B, eMLC

C, cMLC

D, TLC

What are the maintenance items of the data center storage administrator? (Multiple choices)