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

Questions 4

Multipath software can only be used in IP-SAN.

Options:

A.

TRUE

B.

FALSE

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Questions 5

Among the components of the mechanical disk, the parts responsible for reading and writing data are:

Options:

A.

Disc

B.

Read/write head

C.

Magnetic head arm

D.

Spindle

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Questions 6

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

A, SLC

B, eMLC

C, cMLC

D, TLC

Options:

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Questions 7

iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.

Options:

A.

TRUE

B.

FALSE

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Questions 8

Which of the following describe DAS? (Multiple Choice)

Options:

A.

A storage device connects to a host using the SCSI-based bus architecture.

B.

DAS is unfavorable to storage resource sharing,

C.

The host CPU has a work load when storing data.

D.

Long-distance transmission is supported between a host and a storage device.

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Questions 9

Which of the following are deployment modes of cloud computing? (Multiple Choice)

Options:

A.

Public cloud

B.

Private cloud

C.

Hybrid cloud

D.

E-Government cloud

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Questions 10

Users of a company can automatically report the alarm of the storage device connected to it to the Huawei Service Support Center through a management software. Excuse me, what software is this user using?

Options:

A.

DeviceManager

B.

CLI management interface

C.

Toolkit

D.

eService

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Questions 11

A government unit adopts Huawei’s two-site, three-center solution for disaster recovery construction, and its business is mainly concentrated from 8:00 to 18:00.

What is wrong with the following approach?

Options:

A.

Production centers and remote disaster recovery centers should use synchronous remote replication

B.

The time period for data synchronization between the production center and the disaster recovery center should be selected when the business volume at night is small

C.

When doing remote replication, a consistency group should be created according to the business of the unit, and related businesses are placed in a consistents

D.

You can use the BCManager software to set the data synchronization period

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Questions 12

When the disk is not accessible, what kind of reconstruction method is used when writing to the disk?

Options:

A.

Total reconstruction

B.

Local reconstruction

C, recovery and reconstruction

C.

Local reconstruction

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Questions 13

Which of the following statements is true? (Multiple Choice)

Options:

A.

A SAS disk generally has more IOPS than a SATA disk.

B.

only SLC SSD are used in Enterprise level systems.

C.

the realized transfer speed of SSD is higher than that of SAS.

D.

SSD are cheaper than HDD because they are physically much smaller.

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Questions 14

A company that primarily has static data (like map data or JPG files) does not profit much from the HUAWEI OceanStor SmartTier functionality.

Options:

A.

TRUE

B.

FALSE

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Questions 15

If the disaster recovery center in the same city fails, the production center in cascading networking mode will lose all its backup sites.

Options:

A.

TRUE

B.

FALSE

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Questions 16

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

Options:

A.

When the device is powered off, the safe disk stores the data in the cache to prevent data loss

B.

When an unexpected power failure occurs, the BBU supplies power to the cache and safe disk

C.

Safe disk cannot be used to store user data

D.

Only the first two disks in the controller cabinet are used for safe disks

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Questions 17

Which of the following are the 3 layers of SCSI Initiator Model? (Multiple Choice)

Options:

A.

SCSI Link Layer.

B.

SCSI Network Layer.

C.

SCSI Middle Layer.

D.

SCSI Device Driver Layer.

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Questions 18

In a traditional RAID group, when a certain number of hard drives fail, the entire RAID group can prevent data loss, and

The data recovery process has not been started. What is the status?

Options:

A.

Normal work

B.

Downgrade

C.

invalid

D.

Refactoring

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Questions 19

Which of the following is not involved in the SCSI Protocol Addressing?

Options:

A.

Host ID.

B.

BUS ID.

C.

Device ID.

D.

LUN ID.

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Questions 20

A device can only have one WWPN, but it can have multiple WWNNs.

Options:

A.

TRUE

B.

FALSE

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Questions 21

When determining hard disk performance, which of the following are relevant.

(Multiple Choice)

Options:

A.

Rotational speed,

B.

Seek time,

C.

Transfer time.

D.

Transfer rate.

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Questions 22

A device can have one WWPN but multiple WWNN's.

Options:

A.

TRUE

B.

FALSE

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Questions 23

It is a hard-disk failure that occurs when a read-write head of a hard disk drive comes in contact with its rotating platter, resulting in permanent and usually irreparable damage to the magnetic media on the platter surface. Which of the following fits the above description?

Options:

A.

Electrical Failure.

B.

Bad Platter Area.

C.

Bad Sector.

D.

Head Crash.

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Questions 24

If a company uses an OLTP database, which migration strategy is suitable for SmartTier?

Options:

A.

No migration

B, automatic migration

B.

Migration to high-performance layer

C.

Migration to the low-performance layer

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Questions 25

Which statements are true about the ports of a Huawei OceanStor all-flash storage device? (Select All that Apply)

Options:

A.

Bond ports, VLANs, and logical ports are created based on available Ethernet ports

B.

The networks and services between VLANs are physically isolated, which improves the security and reliability of service data.

C.

Multiple Ethernet ports of the same controller are bonded to form a bond port to increase the bandwidth

D.

Multiple logical ports can be created for a bond port, but only one logical port can be created for an Ethernet port

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Questions 26

Most of the data generated by the Internet industry is structured data, which accounts for about 80% of the total data.

Options:

A.

TRUE

B.

FALSE

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Questions 27

The following description of the characteristics of the LAN-FREE backup method is incorrect:

Options:

A.

The backup data stream does not occupy LAN resources

B.

The backup proxy does not affect the performance of the application server

C.

Backup performance is usually higher than LAN-BASED

D.

Does not affect user network performance

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Questions 28

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

Options:

A.

The first maintenance project

B.

Weekly maintenance projects

C.

Daily regular maintenance projects

D.

Real-time maintenance project

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Questions 29

You are tasked to setup a SAN storage system that has the following requirements: (1) To minimize the workload on server resources. (2) Optimize the capabilities on storage system for deduplication. Select the following options that fits the scenario above.

(Multiple Choice)

Options:

A.

Use NIC instead of HBA cards to minimize the host resource consumption during I/O operations.

B.

Offload the storage processing tasks to the server to optimize the data deduplication.

C.

Usage of TCP/IP offload engine technology to do processing on HBA cards on the server to minimize the usage of server resources.

D.

Adding hardware acceleration module to the storage system to optimize the performance of data deduplication.

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Questions 30

What is a measure of storage system performance?

Options:

A.

IOPS

B.

Bandwidth

C.

capacity

D.

Delay

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Questions 31

Which mirroring scenarios are mainly used in HyperMirror? (Multiple choices)

Options:

A.

Mirroring of two LUNs in this array

B.

Cooperate with the heterogeneous virtualization function to realize the mirroring of the LUN of the heterogeneous array and the array

C.

Cooperate with the heterogeneous virtualization function to realize the mirroring of two heterogeneous LUNs

D.

The mirrors of the two LUNs of the volume mirror are not under the same home controller

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Questions 32

The x86 architecture is a type of data center infrastructure.

Options:

A.

TRUE

B.

FALSE

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Questions 33

RTO=0 and RPO=0 in the disaster recovery center of the same city.

Options:

A.

TRUE

B.

FALSE

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Questions 34

Backup is concerned with data recoverability, and disaster recovery is concerned with business continuity.

Options:

A.

TRUE

B.

FALSE

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Questions 35

The disadvantage of full backup is that it requires the last full backup and the most recent differential backup to fully restore data.

Options:

A.

TRUE

B.

FALSE

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Questions 36

The dual-controller storage system generally contains a mirror channel, and data written to the storage system cache will be written through the mirror channel

Into the peer controller.

Options:

A.

TRUE

B.

FALSE

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Questions 37

The SCSI protocol is the basic protocol for host and disk communication. It is operated by the SCSI controller, the controller is equivalent

For a small CPU, it has its own command set and cache.

Options:

A.

TRUE

B.

FALSE

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Questions 38

Host-level disaster recovery has less investment and better compatibility.

Options:

A.

TRUE

B.

FALSE

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Questions 39

What is best described as: the time it takes for the desired data to be beneath the read head when the head is on the correct track?

Options:

A.

Rotational latency

B.

Rotational speed

C.

Seek time

D.

Throughput

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Questions 40

Statement 1: Creating an incremental backup is faster than creating a differential backup. Statement 2: Restoring from an incremental backup is faster than from a differential backup.

Options:

A.

Statements 1 and 2 are both true.

B.

Statement 1 is true and statement 2 is false.

C.

Statement 1 is false and statement 2 is true.

D.

Both statements 1 and 2 are false.

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Questions 41

In HUAWEI OceanStor V3,what statement is true about SmartThin LUNs?

Options:

A.

Space will be reclaimed in all Windows operating systems when data is deleted in the OS.

B.

A Thin LUN cannot be converted into a Thick LUN.

C.

SmartThin must be enabled on all LUNs of a storage pool.

D.

SmartThin LUNs consume just a little storage capacity at the time they are created.

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Questions 42

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.

Options:

A.

False

B.

True

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Questions 43

What is the synchronization cycle time limit for asynchronous remote replication?

Options:

A.

1s~144min

B.

3s~144min

C.

1s~300min

D.

3s~300min

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Questions 44

A company has sufficient client server resources, but network resources are tight. Which deduplication strategy is suitable?

A, file-level deduplication

B. Byte-level deduplication

C, source deduplication

D. Deduplication on the target side

Options:

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Questions 45

What is the role of multi-path software? (Multiple choice)

Options:

A.

Fault path switching

B.

Load balancing of IO traffic

C, fault path recovery

C.

Data recovery

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Questions 46

Hybrid cloud is a solution that uses both private and public clouds.

Options:

A.

TRUE

B.

FALSE

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Questions 47

SCSI communication is initiated by the initiator and received and processed by the target. When the host and the storage device communicate, the storage device

The side assumes the role of initiator.

Options:

A.

TRUE

B.

FALSE

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Questions 48

Deduplication and compression can only be enabled for Thin LUNs.

Options:

A.

TRUE

B.

FALSE

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Questions 49

The data center is an infrastructure built for accessing and carrying server services. According to the business, the data center can be

Divided into: (multiple choices)

Options:

A.

Cloud data center

B.

Enterprise data center

C.

Carrier data center

D.

Internet Data Center

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Questions 50

Storage cache can optimize the speed of the storage system.

Options:

A.

TRUE

B.

FALSE

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Questions 51

Which of the following is not an IP SAN component?

Options:

A.

Storage device with iSCSI interface

B.

twisted pair

C.

NIC

D.

FC switch

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Questions 52

Which of the following RAID levels has the lowest hard disk space utilization?

Options:

A.

RAID 0

B.

RAID 1

C.

RAID 3

D.

RAID 5

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Questions 53

The following two descriptions are correct:

Description 1: Synchronous remote replication, when the primary storage fails, the amount of data lost can be 0.

Description 2: When the host is a Linux-based file system, asynchronous remote replication must be used.

Options:

A.

description 1 and description 2 are correct

B.

Description 1 pair, description 2 wrong

C.

Description 1 wrong, description 2 pairs

D.

description 1 and description 2 are wrong

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Questions 54

As the new storage administrator, you are tasked with the procurement of a new batch of SSD drives to replace the older drives that has reached the end of life. You have the option of SLC, MLC and TLC SSD. Which of the following will be your choice with a limited budget and medium level of reliability concerns? (Select All that Apply)

Options:

A.

Purchasing all SLC SSD drives for maximum savings on cost regardless of reliability.

B.

Purchasing all TLC SSD drives for the storage system for the best reliability and performance.

C.

Purchasing the MLC SSD if within budget range for core applications and services for better performance and reliability.

D.

Purchasing SLC SSD drives that has lowest cost and reliability for storage purposes of non critical applications

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Questions 55

Which statements are true about RAID 2.0+? (Select All that Apply)

Options:

A.

An extent is a block of a fixed size in a chunk group (4 KB by default).

B.

A chunk group is a logical set of chunks on different disks.

C.

Chunks, which are blocks obtained by dividing each disk at a fixed size, are basic units of a RAID group

D.

A chunk group is the minimum unit for applying for and releasing space in a storage pool

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Questions 56

A company uses the CIFS protocol for file sharing, and uses the Homedir sharing method according to the security policy.

All users access the folder and write space.

Options:

A.

TRUE

B.

FALSE

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Questions 57

The amount of data in an incremental backup is larger than that in a differential backup.

Options:

A.

TRUE

B.

FALSE

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Questions 58

OceanStor 5300 V3 is a dual-controller converged storage product, which must ensure the working controller and attribution control of the LUN

The controller is consistent.

Options:

A.

TRUE

B.

FALSE

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Questions 59

The synchronous remote copy management module RM is software.

Options:

A.

TRUE

B.

FALSE

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Questions 60

Regarding HUAWEI OceanStor storage dynamic tiered storage technology, which of the following descriptions is incorrect?

Options:

A.

SmartTier calculates and analyzes the activity of data to determine the activity level of the data

B.

SmartTier automatically and dynamically moves data to different performance storage media according to different activity levels of the data on

C.

SmartTier data movement configuration-based data migration strategy

D.

Data statistics, analysis and data migration of SmartTier features will affect business continuity and data availability

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Questions 61

With the advent of the era of big data, the corresponding storage technology is also undergoing changes.

Is the following statement correct? (Multiple choice)

Options:

A.

The file system develops from a local file system to a cluster file system and a distributed file system

B.

Traditional NAS, facing PB-level data, complex volume management and unbalanced system capacity allocation, will result in waste of resources

C.

The mass storage system is characterized by a more complicated file system and more complicated management

D.

Having large-scale expansion capability is the characteristic of mass storage system

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Questions 62

Regarding the steps of SAN synchronous replication, what is the correct order?

(1) The production storage receives the host write request. HyperReplication logs the request. Only the place is recorded in the log

Address information, without recording data content.

(2) HyperReplication waits for both the primary LUN and secondary LUN write processing results to be returned. If both are written successfully, clear

Log; otherwise keep the log, enter the abnormal disconnection state, and then copy the corresponding number of the log address again when starting synchronization

According to the block.

(3) Write the request to the master LUN and slave LUN. Normally, the LUN is in the write-back state, and the data will be written

Cache.

(4) Return the processing result of the host write request, which is subject to the processing result of the write master LUN.

Options:

A.

(1) (3) (2) (4)

B.

(1) (2) (3) (4)

C.

(2) (1) (3) (4)

D.

(4) (2) (3) (1)

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Questions 63

In the HUAWEI OceanStor storage system, which protocol is used for the mirror channel between the controllers?

Options:

A.

IB

B.

PCI-E

C.

FCoE

D.

iSCSI

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Questions 64

In the HUAWEI OceanStor storage system, which of the following descriptions about mapping snapshot LUNs is correct?

Options:

A.

The snapshot LUN mapped to the host can only be read, not written

B.

The activated snapshot LUN can be mapped to the host for reading and writing

C.

The snapshot LUN can only be mapped to the same host as the original LUN

D.

The description of all options is correct

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Questions 65

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.

Options:

A.

Description 1 is correct, description 2 is correct

B.

Description 1 is wrong, description 2 is correct

C.

Description 1 error, description 2 error

D.

Description 1 is correct, description 2 is incorrect

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Questions 66

An e-commerce website usually has a relatively stable business volume, so I purchased the server and built a private cloud operation

During the Double Eleven promotion, the business volume is very large, so we rent the server from the operator's public cloud to share the festival's burden

Netherlands, this cloud computing deployment model belongs to?

Options:

A.

Public cloud

B.

Private cloud

C.

Hybrid cloud

D.

Community Cloud

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Questions 67

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

Options:

A.

Can avoid major losses and reduce corporate risks

B.

Comply with policies and regulations to meet industry regulatory requirements

C.

Can simplify the operation and maintenance work, avoid the impact of emergencies

D.

In areas where fewer natural disasters occur, consider reducing the disaster recovery level

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Questions 68

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)

Options:

A.

The data in the copy space before COW is 9:00 LUN A

B.

The data in the copy space before COW is 10:00 LUN A data

C.

The data of the source LUN is the modified data at 10:00

D.

After the snapshot is rolled back, the data of the source LUN becomes the data of the modified snapshot LUN at 10:00

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Questions 69

The following are the characteristics of the clustered NAS storage architecture: (multiple choice)

Options:

A.

Unified namespace, shared globally

B.

High performance, multiple arrays concurrent I/O

C.

Online expansion

D.

can provide block-level storage

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Questions 70

During data center construction, a media company purchased storage devices from multiple vendors. The CTO wants to centrally manage these devices through storage virtualization. Which function is NOT provided by storage virtualization?

Options:

A.

Reducing the limitations of physical storage capacity

B.

Hiding the complexity of physical devices

C.

Enabling servers to directly access storage hardware

D.

Supporting unified deployment and management

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Questions 71

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

Options:

A.

RAID 10 is used in scenarios with high requirements for speed and fault tolerance

B.

RAID 10 requires at least 4 member disks

C.

In RAID 10, if two member disks in a subgroup fail, the data is read normally

D.

In RAID 10, the data is first mirrored and then striped

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Questions 72

When configuring Thin LUN, not all configured storage space is allocated upon creation. The storage space for Thin LUN will only be allocated when it is used.

Options:

A.

False

B.

True

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Questions 73

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

Options:

A.

False

B.

True

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Questions 74

Which statements are true about a dual-controller storage system? (Select All that Apply)

Options:

A.

There are two working modes: active-standby and active-active.

B.

In active-standby mode, if one controller is faulty, services are not affected

C.

When one controller is faulty, the service failover in active-active mode is more efficient than that in active-stand by mode

D.

In active-standby mode, only one controller works at a time.

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Questions 75

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)

Options:

A.

SmartMigration

B.

HyperMetro

C.

SmartTier

D.

HyperClone

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Questions 76

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

Options:

A.

Lower cost than SCSI

B.

Full duplex transmission of data.

C.

Half duplex transmission of data

D.

Higher throughput.

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Questions 77

For the data stored on the medium, there is no need to physically crush or sell it as the data recorded on the paper

Ruined situation.

Options:

A.

TRUE

B.

FALSE

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Questions 78

Suppose, for cost control reasons, a startup company can acquire only one storage device to provide services. However, its services require high hardware reliability, so an engineer recommended a Huawei OceanStor all-flash storage system. Which statements describe the high reliability of the storage system? (Select All that Apply)

Options:

A.

It supports clusters consisting of multiple controller enclosures to improve the availability of the storage system

B.

Interconnect I/O modules shorten failover time when a controller fails to provide better reliability, as compared with common I/O modules.

C.

Standard I/O modules shorten failover time when a controller fails to provide better reliability, as compared with interconnect I/O modules.

D.

When a controller fails, l/Os of the faulty controller are redirected to another controller The host is unaware of the fault and services remain running properly.

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Questions 79

Regarding the common components of ICT, is the following statement correct?

Options:

A.

Common components of ICT include host, storage array, switch, and network

B.

The mainframe is also called a server, referring to some computers with higher specifications in some enterprises

C.

Storage array usually refers to equipment that provides data storage

D.

The switch is also called a switching hub, which mainly works on a three-layer network

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Questions 80

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.

Options:

A.

Descriptions 1 and 2 are correct

B.

Description 1 is correct, description 2 is incorrect

C.

Description 1 is wrong, description 2 is correct

D.

Both descriptions 1 and 2 are incorrect

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Exam Code: H13-611_V4.5
Exam Name: HCIA-Storage V4.5
Last Update: Nov 24, 2024
Questions: 536
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