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H13-624 HCIP-Storage V5.0 Question and Answers

Question # 4

The correct statement about the Huawei Oceanstor 9000lnfoTier node pool is: (multiple choice)

A.

The node types in the node pool must be the same

B.

If it is an OPS intensive application scenario, it is better to configure P nodes in the node pool

C.

When the node pool is composed of P nodes, a node pool contains at least 3 nodes

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Question # 5

When accessing the Linux client of the Huawei Oceanstor9000 cluster, the client parameters can be adjusted to improve access

Performance, which one of the following is wrong?

A.

N FS uses TCP protocol to send and receive data, appropriately increasing the buffer size can speed up TCP transmission

B.

Enabling Jumbo Frames can reduce TCP loss and improve performance. The prerequisite is to confirm that the customer

All network devices between end interfaces must support jumbo frames

C.

In order to support jumbo frames, all nodes of the corresponding Oceanstor 9000 need to be set accordingly

D.

Oceanstor9000 supports jumbo frames, it is necessary to set the MTU of all front-end and back-end business network ports

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Question # 6

Huawei's hyper-converged storage has multiple data security assurance mechanisms. The following statement is correct ()

A.

Support a variety of EC (Erasure Code) with different ratios

B.

According to the security level, 2 copies or 3 copies can be flexibly configured

C.

Support storage dual-active and asynchronous replication capabilities, and provide cross-site data redundancy protection

D.

PCle SSD Cache technology ensures that data will not be lost after power failure

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Question # 7

In the software module of Huawei Oceanstor 9000, it belongs to the distributed object storage layer, not the distributed file system layer

It is: (multiple choice)

A.

O BS(Obiect Based Store)

B.

MDS (MetaData Service)

C.

Disk K-V Store

D.

CA (Client Agent)

E.

PVS(Protocol and Value-added Service)

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Question # 8

The Wushan file system in Oceanstor 9000 uses an object storage method, but only uses object storage for data.

Storage, object storage is not used for metadata

A.

True

B.

False

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Question # 9

Multiple selection When accessing the Windows client of the Huawei Oceanstor 9000 cluster, which aspects of the client can be adjusted

To improve access performance? (multiple choice)

A.

TCP parameter adjustment

B.

Bdirty_bytes parameter adjustment

C.

CIFS read and write size settings

D.

Support Jumbo Frame

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Question # 10

Single-choice Which of the following is the incorrect feature description of Oceanstor 9000 InfoStamaper?

A.

The metadata of Oceanstor 9000 uses mirroring for redundancy, and COW technology is used for the metadata.

B.

InfoStamaper feature provides snapshots based on file level

C.

Oceanstor 9000 InfoStamaper adopts ROW technology

D.

The advantage of using ROW is that it has less impact on system performance.

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Question # 11

Single choice Which of the following is not a feature of the Huawei WushanFS file system

A Performance and capacity can be expanded separately

B. Fully symmetrical distributed architecture,

C. Metadata nodes Metadata is evenly distributed, eliminating the performance bottleneck of metadata nodes

D. Support 40PB single file system

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Question # 12

Which of the following options does not belong to the characteristics of the distributed storage big data service solution single-choice solution ()

A.

Integrated deployment, storage and calculation are configured in proportion

B.

High performance support EC, better than native HDFS 3.0

C.

Distributed NameNode

D.

EC mechanism that is truly fully compatible with native HDFS semantics

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Question # 13

The Huawei Oceanstor 9000 InfoTier file pool policy will determine the storage location of files created and when files are re-striped.

Which one of the following statements about the file pool strategy is incorrect?

A.

The default policy has the lowest priority

B.

The default strategy can be modified

C.

The relationship between the strategy parameter combinations is "or" D.

Supports configuration of up to 128 file pool policy responses

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Question # 14

In Huawei 0ceanstor 9000, the client processing the write request will divide the data according to the protection level specified by the file

The data piece is written to the power-saving memory on the corresponding node, and then each node calculates the check data piece, and writes it to each 2 node’s

Power-saving memory. After all nodes write to power-saving memory successfully, this write operation is successful.

A.

True

B.

False

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Question # 15

Single-choice Which one of the following descriptions about the Oceanstor 9000Wushan file system is wrong?

A.

Wushan file system manages the underlying data as objects, which simplifies the management method and metadata overhead

B.

Wushan file system adopts object storage mode, and does not need to provide users with a traditional system tree structure for users to use

C.

The data object of the Wushan file system is composed of a set of Stripes (stripes), and the strips are generated by the Erasure Code matrix operation.

D.

Each object of the Wushan file system is a complex of data and data attribute sets. The data attributes can be set according to the application, including data distribution and service quality.

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Question # 16

Single selection In the Huawei Oceanstor 9000 system, which of the following functions or parameters will be disabled will affect the InfoTier function?

A.

signature function

B.

Notify function

C.

Access time tracking

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Question # 17

Which of the following types of nodes provided by Huawei Oceanstor 9000 include? (Multiple choices)

A.

High-performance storage nodes

B.

Large-capacity archive node

C.

Data storage node D.

Data processing node Answer

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Question # 18

When Huawei Oceanstor 9000 is used in large file scenarios, we should focus on its OPS,

A.

True

B.

False

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Question # 19

About the machine of Oceanstor 9000's 10GE networking solution

Cabinet configuration description, the following statement is wrong: (multiple choice)

A.

Nodes are placed in the cabinet first from top to bottom

B.

The management switch is recommended to be placed in the basic cabinet

C.

The back-end business network switch is recommended to be placed in the expansion cabinet

D.

Huawei provides tools to assist in calculating the power consumption of the system. In actual projects, the total power consumption of each component in the computer cabinet should be

Line deployment

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Question # 20

Hyper-convergence is a data center architecture that can uniformly collect computing capacity, file storage, memory, and network, and is like a public entity.

Independent management.

A.

True

B.

False

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Question # 21

An enterprise needs to provide continuous data insurance policy selection for its instant transaction business, so it has created a timed data LUN for this business.

HyperCDP plan, which of the following configurations can shorten the RPO as much as possible ()

A.

Create multiple HyperCDP backups

B.

Set the "fixed period" of the timing plan to 3 seconds

C.

Set the "reserved number" of HyperCDP to 60000

D.

Create HyperCDP at a specified time every day

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Question # 22

Engineer A finds an abnormality in the storage during the daily inspection, and calls the Huawei technical support hotline for help, and technical support instructs engineer A

Complete the collection of information of the business host. The operating system of the business host is Linux, which of the following collected commands are correct ()

A.

Execute the upadmin show vlan command to query all or specified virtual disk information

B.

Execute the rpm -qa|grep UltraPath command to check whether the multipath software is completely installed. If the system displays the UltraPath Relevant information indicates that it has been installed

C.

Execute service firewall stop to turn off the firewall

D.

Execute the upadmin show upconfig command to view the multipath configuration

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Question # 23

In order to improve the reliability of its important business, an enterprise deployed in a data center room A and room B

With regard to the local active-active solution, which of the following statements is correct about this solution:

A.

The active-active replication network in the two-machine room simultaneously carries data synchronization and heartbeat information between storage systems

Sync and other various data

B.

Computer room A and computer room B need to be in the same fault domain

C.

The network types from the same business host to two active-active storage devices can be different

D.

The arbitration server must use the host in computer room A or computer room B

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Question # 24

The following statements about Thin lun and multi-select Thick LUN of Huawei Oceanstor storage are wrong:

A.

Both Thick LUN and Thin LUN need to be configured with initial capacity

B.

Both Thick LUN and Thin LUN can be configured in the same storage pool

C.

Both ThickLUN and Thin LUN can be greater than or equal to the available capacity of the storage pool where they are located

D.

Both Thick Lun and Thin LUN can be created in batches

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Question # 25

Which of the following is the maintenance software supported by Huawei's hybrid flash storage products?

A.

SmartKit

B.

OceanStor UltraPath

C.

BCManager eReplication

D.

OceanStor eSDK

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Question # 26

The SmartQoS technology of Huawei OceanStor all-flash storage supports the creation of tenant-level QoS control and documentation.

Software system QoS control, the two controls can take effect at the same time, forming a two-level QoS control.

A.

True

B.

False

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Question # 27

PCle protocol components include:

A.

Session layer

B.

Data Exchange Layer

C.

Physical layer

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Question # 28

Based on the characteristics of big data, Huawei distributed storage can adopt a single-select Scale-out architecture and use general-purpose server hardware to provide large data.

According to the storage platform.

A.

True

B.

False

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Question # 29

A company purchases two sets of Huawei horizontally extended file storage, which are deployed in the production data center and the disaster recovery data center. The storage administrator needs to

To create a replication zone channel between two storage systems, which of the following option descriptions is correct ()

A.

The replication zone channel is a set of communication links established in the same replication zone of the master and slave storage systems

B.

Only one replication zone channel is allowed to be created between two storage system clusters

C.

The remote replication pair between the two clusters will correspond to their respective replication zone channels

D.

The authentication and flow control of the remote replication communication link are completed through different channels

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Question # 30

An enterprise administrator created a shared folder on the root directory of the file system, and created 3 different Quotas under the root directory

Tree gives manager A (Quota Iree 1), project department B (Quota Tree 2) and sales department C (Quota Tree 3) separately

use. The following statement is correct ()

A.

You can limit the CPU usage on Quota Tree

B.

Quota Tree quotas in the root directory must be consistent

C.

According to business needs, different quotas can be configured for each Quota Tree

D.

Cache partition can be set on Quota Tree 2

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Question # 31

Single selection Huawei’s converged storage has the function of parallel and fast data reconstruction. Data fragments are scattered in the resource pool. After a hard disk fails, the Automatic and parallel reconstruction within the entire resource pool, only the actual data is reconstructed, and no separate hot spare disk is required.

A.

True

B.

False

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Question # 32

After a certain company created a scheduled HyperCDP plan for a period of time, it frequently prompted that the storage pool resources were not

At this time, you can choose which of the following configuration to modify the timing HyperCD plan ()

A.

Shorten the cycle of creating timed HyperCDP

B.

Increase the period of timed HyperCDP creation

C.

Increase the reserved number of HyperCDP

D.

Create HyperCDP at fixed time

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Question # 33

The Huawei SmartCache feature is to form a smart cache pool of SSD disks, and divide the smart cache pool into multiple partitions.

District, different businesses cannot share districts to ensure business independence

A.

True

B.

False

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Question # 34

In the following RAID levels, if 2 hard drives in the RAID fail, what options are there for data loss ()

A.

RAID 6

B.

RAID 3

C.

RAID 0

D.

RAID 5

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Question # 35

The HyperLock (WORM) feature of Huawei Storage enables the single-selection of files to be written only once, cannot be written repeatedly, and is not allowed to be modified, deleted, or renamed.

A.

True

B.

False

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Question # 36

The following statements about Huawei's SamtMulti-Tenant technology are single-selected, which one is wrong ()

A.

Role management is divided into preset default roles and custom roles

B.

There are three types of authority management: read-only, write-only and read-write

C.

A physical storage system can be divided into multiple virtual storage partitions, and the storage pools are shared among these virtual storage partitions

D.

In role management, three default roles are preset for tenant groups: tenant administrator, tenant data protection administrator, and tenant agreement administrator

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Question # 37

A bank’s production center and disaster recovery center both use Huawei’s hyper-converged storage products. The two centers communicate Disaster recovery through asynchronous replication. The copied network type can support GE/10 GE/25 GE

A.

True

B.

False

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Question # 38

Huawei's hyper-converged storage adopts a single-selection structure of distributed storage logic architecture. Which of the following is the function of the MDC module ()

A.

Provide hard disk management

B.

Provide standard SCSI/iSCSI services for VMs and databases

C.

Provide management of storage cluster status

D.

DASH partition

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Question # 39

Operation and maintenance is based on technology and provides higher-quality services through technical guarantee products. Which of the following aspects can be used to improve luck

Dimension quality ()

A.

Standard

B.

Process

C.

Resources

D.

Management

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Question # 40

An engineer needs to perform a snapshot rollback operation to obtain source data at a certain time in the past. Regarding this operation process, which of the following statements are

correct()

A.

If the data is rolled back to the snapshot at time A, the snapshots created after time A will be deleted

B.

Snapshot rollback speed can reach the second level

C.

If the data is rolled back to the snapshot at time A, the snapshots created after time A will not be deleted

D.

Snapshot rollback is a full copy recovery of the source data at a certain point in time

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Question # 41

The InfoEqualizer feature partition is used to separate nodes of different services. A partition contains a group of nodes. These nodes

What are the same characteristics of points ()

A.

Load balancing strategy

B.

Hardware type

C.

Dynamic domain name

D.

Static domain name

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Question # 42

An enterprise mail application service has limited storage resources, so a quota is set for the business user, and the soft quota for user A is 500 MB.

The hard quota is 800 MB. Under this configuration, which of the following statements are correct ()

A.

User A can use up to 500 MB of storage system

B.

When user A uses 500 MB of space, the system will send a resource shortage alert to the user, and the write fails

C.

When user A uses up to 500 MB of space, the system will send a resource shortage alert to the user. When the user adjusts the used space below

At 450 MB, the alarm disappears

D.

User A can use up to 800 MB of storage system

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Question # 43

The game live broadcast platform uses Huawei's all-flash storage FlashLink many-core technology to ensure its business. For the many core technologies

Which of the following describes the scene of the controller partitioned by CPU ()

A.

A request is continuously executed on the same core and a lock-free design is implemented to avoid frequent multi-core switching

B.

Read and write I/O and other I/O are deployed in different groups to avoid mutual interference

C.

Identify the hot and cold data in the system, improve the performance of garbage collection through the cooperation of the SD disk and the controller, and extend the use of the SD disk life

D.

vnode and CPU are bound to reduce the overhead of cross-CPU scheduling and cross-CPU transmission

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Question # 44

When using the InfoLocker feature for file protection, multiple file selections can be changed between which states

A.

Protection expired

B.

Protection status

C.

Unprotected state

D.

Additional status

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Question # 45

Regarding the characteristics of a single file system in Huawei distributed storage, which of the following option descriptions are correct ()

A.

When accessing a single file system, users need to pay attention to the specific data storage location

B.

Automatically create a unified file system when the system starts

C.

In a single file system, file collections are presented as directories

D.

The system provides a unified file system for accessing all available space

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Question # 46

In Huawei distributed storage, the block service asynchronous remote replication architecture is based on the block service cluster to build an asynchronous replication relationship.

Based on the difference data, periodically synchronize the data of the master and slave volumes. After the data synchronization of the last synchronization cycle is completed, the current synchronization cycle starts.

Initially, all data generated on the primary volume will be written to the secondary volume during this synchronization.

A.

True

B.

False

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Question # 47

In the file system, which scenarios will modify the metadata

A.

Delete files (including soft links) or directories

B.

Modify properties

C.

Rename

D.

Create files (including soft links) or directories

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Question # 48

The storage device generates a fault alarm. Which of the following methods cannot collect storage system faults?

information( )

A.

Check the zone configuration

B.

Check all events

C.

Export system data

D.

Check the warning information

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Question # 49

Which of the following descriptions of the software components of the Huawei 0 ceanstor 9000 product is correct?

A.

NDMP backup requires license support

B.

InfoStamper supports creating a snapshot of the root directory

The C.ceanstor9000 system defaults to load in a round-robin manner

C.

InfoAllocator controls the user's use of storage space by capacity or number of files

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Question # 50

When configuring basic storage services on Huawei all-flash storage, which of the following statements are correct ()

A.

When user application data is stored in multiple LUNs, LUN groups can be created to facilitate management

B.

Before configuring basic services, you must first import the license

C.

If the business host is a cluster, add all the hosts in the cluster to the same host group

D.

If you need to specify a specific port to connect to a certain business host, you need to create a port group to complete the relevant operations

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Question # 51

Bank A purchased a batch of Huawei OceansStor 18500 multi-choice v5, which passed RDMA

Scale-out to expand the connection, which of the following statements are correct ()

A.

The SmartIO interface provides internal interconnection, the transmission protocol is RDMA protocol, and the port bandwidth is up to

100 GB

B.

The idle 4 ports are used to expand to 16-control direct connection networking

C.

Directly connected redundant networking realizes full interconnection between 8 controllers, and each engine shares 400 GB of switching bandwidth

D.

Divide logical VLAN on SmartIO port and connect data network and heartbeat network at the same time

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Question # 52

Regarding the HyperMetro static priority arbitration mode, the correct one is:

A.

The static priority mode has higher reliability than the quorum server mode.

B.

When an inter-array link failure occurs, or a non-priority site fails, the LUN on the priority site continues

Services will continue to be provided, and LUNs at non-priority sites will cease to provide services.

C.

When the priority site array is powered off for maintenance, the non-priority site array immediately takes over all active-active businesses

The business will not be interrupted.

D.

When the priority site array fails, the non-priority site will automatically take over the active-active service.

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Question # 53

The network file sharing protocols supported by the NAS system mainly include: (multiple choice)

A.

FAT32

B.

NTFS

C.

NFS

D.

CIFS

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Question # 54

What is the incorrect description of the features of Huawei 0 ceanstor 9000lnfoTier and related concepts?

A.

The node types in the node pool do not have to be the same

B.

The number of nodes in the node pool is limited, including at least 3 nodes and at most 20 nodes

C.

The hard disks of all nodes in the node pool are of the same type

D.

InfoTier features correspond to different file pool strategies through different levels

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Question # 55

In the Huawei Oceanstor 9000 system, a file pool refers to a collection of files that meet certain characteristics. The file pool policy defines

The rules of how the file pool is stored in the node pool.

A.

True

B.

False

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Question # 56

The file sharing excuse provided by the Huawei 0 ceanstor 9000 system does not include which of the following options?

A.

Object

B.

NFS

C.

CIFS

D.

FTP

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Question # 57

The following options do not belong to the advantages brought by the global cache:

A.

Improve cache space utilization

B.

Improve cache data access hit rate

C.

Improve overall system performance

D.

Improve system safety and reliability

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Question # 58

Colleagues customized Huawei’s primary and backup disaster recovery solutions for customers. Customers have already selected one set of OceanStor 2600TV2 and one set of third

In the storage system of the third party, the two sets of equipment are placed in two data centers to implement the main and backup disaster recovery. This solution:

A.

Not feasible. Huawei's active and standby disaster recovery solution requires at least a storage system of OceanStor5600 V3 and above to be realized.

B.

Feasible, Huawei's active and standby disaster recovery solution can support the connection of OceanStor 2600T V2 equipment and third-party arrays.

C.

Not feasible. Huawei's active and standby disaster recovery solution requires at least one OceanStor V3 storage system to be implemented.

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Question # 59

Which of the following options is incorrect about the description of the bucket (Bucket) is:

A.

A bucket is a container used to store objects and can be regarded as a directory that can be accessed through the network.

B.

Buckets support nesting, thus avoiding a hierarchical container structure.

C.

Buckets and Containers have similar functions, and both can be accessed through the network.

D.

Bucket lifecycle management refers to the configuration of rules to realize the function of automatically deleting objects in the bucket after a certain period of time without the client's intervention Pre.

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Question # 60

Single-choice Which one of the following descriptions about the trembling characteristics of Huawei Oceansor 9000 is incorrect?

A.

Quota can be set based on users

B.

quota is set based on user group

C.

Support setting quotas for file directories

D.

Support setting quotas on files

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Question # 61

Which of the following scenarios is not suitable for the promotion of active and standby disaster recovery solutions.

A.

The customer configures low-end storage products on the disaster recovery side in order to save costs.

B.

Customers need RTO=0, RPO=0

C.

The customer accepts the array layer disaster recovery technology.

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Question # 62

Which of the following storage units does the Huawei N8000 cluster NAS system use?

A.

S2200T

B.

S2600T

C.

S550T

D.

S6800T

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Question # 63

Between CE6810-24S20-LI and CE6810-4854Q-EI, use high-speed Ethernet ports (such as QSFP+) and high-speed

Cables can be stacked.

A.

True

B.

False

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Question # 64

Multiple choices The business characteristics of Huawei Oceanstor 9000NFS are correct: (multiple choices for this question)

A.

Compatible with multiple operating systems, can realize file resource sharing in a heterogeneous network environment

B.

After node B fails, the client business connected to this node quickly switches to other nodes to take over, and the business is not interrupted

C.

Provide shared services externally in a cluster mode, and nodes can monitor each other's service status

D.

can realize load balancing according to business and node status, and data access is evenly distributed in the cluster

E.

Oceanstor 9000 supports NFSv3 and v4 protocols

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Question # 65

Among the following backup media, the ones that support data deduplication are: (multiple choice)

A.

S2600 V3

B.

N8500

C.

OceanStor6800 V3

D.

FusionStorage

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Question # 66

The hardware snapshot of the OceanStor backup solution supports storage devices from all vendors.

A.

True

B.

False

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Question # 67

In the feature of Huawei OceanStor 9000 InfoEqualizer, a partition is a collection of a group of nodes. These nodes are used for partitioning.

Provides different services every other time, with the same dynamic domain name, static domain name and automatic load balancing characteristics.

A.

True

B.

False

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Question # 68

An OceanStor 9000 storage system consisting of 6 P36 nodes, which of the following are composed of? (multiple choice)

A.

Front-end business network

B.

Back-end storage network

C.

wushan file system business management network D. IPNI management network

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Question # 69

Multiple Choices What are the advantages of Huawei Oceanstor 9000 clustered NAS technology to help you with N8000NAS storage systems? (Multiple choices)

A.

The failover is fast, and the failure of a single node in the cluster does not affect the business

B.

Multi-node cluster, load balancing, global cache, providing powerful the\

C.

engine cluster is followed by SAN storage. SAN storage can use heterogeneous storage

D.

Scale out! Engine architecture is scalable

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Question # 70

Which is the wrong description about the synchronous remote replication of the OceanStor V3 storage array?

A.

After the master and slave LUN write I/O are successful, the master array returns the write I/O success to the host.

B.

The master array writes I/O write data to the master LUN and sends it to the slave LUN.

C.

The impact of synchronous remote replication on the host's write IO performance has nothing to do with the distance between the master and slave sites.

D.

Synchronous remote replication can support one master LUN to simultaneously replicate to two slave LUNs.

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Question # 71

For security reasons, it is generally impossible to access resources across domains. But OceanStor 9000 supports

The Crossdomain Policy File mechanism allows other domains to have access to OceanStor9000 and realize cross-domain data

Source access.

A.

True

B.

False

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Question # 72

Single choice Which of the following options is incorrect for the description of the metadata of the Oceanstor 9000 storage system?

A.

Oceanstor 900 metadata is stored in a mirrored way

B.

The metadata on each node is a complete and independent copy

C.

The purpose of mirror storage is to improve the security of metadata

D.

The mirroring method does not provide the system's access rate to metadata

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Question # 73

What professional storage value-added features does the HDFS interface provide for Hadoop business? (multiple choice)

A.

Remote replication

B.

Snapshot

C.

NDMP backup

D.

HtyperMetro

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Question # 74

What is wrong about the concept description of object storage service (compatible with OpenStack Swift interface) among the following options:

A.

Account is the owner and manager of the resource. Use Account to add, delete, check, and configure the Container

Attributes and other operations can also be performed on Objects such as uploading, downloading, and querying.

B.

Object is an object, that is, data, which can be regarded as a file that can be accessed through the network.

C.

Container supports nesting, thus avoiding a hierarchical container structure.

D.

Container is a kind of container for storing objects, which can be regarded as a directory that can be accessed through the network.

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Question # 75

In N8500 V200NO01, which of the following commands can be used to check whether the status of the file system is online? ()

A.

storage s list

B.

storage fs online

C.

storage fs status

D.

storage fs status show

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Question # 76

Single selection As shown in the “Oceanstor 9000 Network Diagram”, the node in the “Oceanstor 9000 Network Diagram” adopts the P36 node, then the NIC0 in the P36 node should be connected to the P36 node.

Which switch does it enter in the network diagram?

A.

a Switch

B.

b switch

C.

c switch

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Question # 77

The system debug log level is used to identify the severity and importance of a log, and eReplication is ranked according to the severity.

The order of decrement can divide the system debug log into the following 4 levels: error, warning, operation, and debugging.

A.

True

B.

False

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Question # 78

Single selection is the data synchronization method in Oceanstor 9000 Inforeplicator including full synchronization and incremental synchronization.

Manual or automatic trigger

A.

True

B.

False

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Question # 79

A colleague is working on a dual-active disaster recovery plan. By testing the arbitration server to the storage system at both ends, the bandwidth is 4Mbit/s, and the delay is 4Mbit/s.

RTT≤40ms, and packet loss rate≤1%, then this scheme:

A.

Not feasible, because the active-active disaster tolerance bandwidth must not be less than 10Mbit/s.

B.

Feasible, because it meets the conditions of the active-active disaster recovery plan.

C.

Not feasible, because the packet loss rate of active-active disaster recovery must be ≤0.1%.

D.

Not feasible, because the delay of active-active disaster recovery RTT≤120ms

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Question # 80

Which of the following descriptions of the C72 node management interface is correct: (multiple choice)

A.

0ceanStor 9000 cluster only has C72 nodes, and the number of C72 nodes is greater than or equal to 3. The A control module of the first 3 nodes

NICo provides management interface

B.

When the C72 node and the non-C72 node are deployed in a mixed manner, the C72 node can be selected to provide an independent management network port.

C.

When C72 nodes and non-C72 nodes are mixed deployment and object storage services are applied, the object storage management node must be deployed to provide independent

Establish the management network port on the node.

D.

When deploying a storage cluster, you need to configure a separate IP address for the NICO interface on the c72 node interface board in the cluster

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Question # 81

Single-choice Huawei oceanstor 9000, the client processing the write request will fragment the data according to the protection level specified by the file

The data piece is written to the power-saving memory on the corresponding node, and the check data piece is calculated by each node and written to each node.

Power-saving memory, after all nodes write into power-saving memory successfully, this write operation is successful.

A.

True

B.

wrong

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Question # 82

In the data backup application scenario, compared with physical tape libraries, which of the following descriptions belong to the characteristics of disk backup media?

(Multiple choice)

A.

High backup and recovery performance.

B.

Low management and maintenance costs.

C.

It can realize the separation of the data storage disk and the device for reading and writing the disk, and realize the offline storage of the data.

D.

The unit storage cost is lower than that of physical tape.

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Question # 83

The phone is accessing the LINUX client of the Oceanstor 9000 cluster, which can appropriately reduce the number of concurrent NFS on the client.

To improve access performance

A.

True

B.

wrong

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Question # 84

Store the data block in the cache first, and then de-duplicate the tree when the system is idle. The advantage is that it does not affect the performance of data transmission.

The point is that additional storage space is required." What kind of deduplication technology is described above,

A.

Source end deduplication

B.

Target end deduplication

C.

Parallel deduplication

D.

Global deduplication

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Question # 85

(single choice) Among the following OceanStor 9000 software features, which feature can provide file system snapshots? A. InfoLocker

B. InfoStamper

C. InfoProtector

D. InfoEqualize

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Question # 86

(Judgment) Through Huawei OceanStor 9000 Device Manager, we can view the real-time OPS performance indicators of the system.

A.

T

B.

F

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Question # 87

In the Huawei dual-active disaster recovery solution, which of the following are necessary components? (multiple choice)

A.

HyperMiror

B.

Quorum server

C.

UltraPath

D.

HyperMetro

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Question # 88

In the local high-availability solution using Huawei HyperMirror, which of the following statements is correct? (multiple choice) E. You only need to connect Huawei OceanStorV3 storage to the business host.

F. Both Huawei OceanStorV3 storage and heterogeneous storage need to be connected to the business host.

G. Heterogeneous storage does not need to be connected to the business host

H. You only need to connect heterogeneous storage to the business host.

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Question # 89

The disadvantage of physical tape libraries is that the hardware and mechanical failure rate is relatively high, and the single-selection tape media itself is relatively fragile and vulnerable to external environments.

Environment (temperature, humidity, dust, etc.), it is prone to failure.

A.

True

B.

False

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Question # 90

(single choice) Which of the following is the correct power-on sequence of the Huawei OceanStor 9000 big data storage system?

A.

Cabinet-->Switch-->KVM--->Node

B.

Cabinet-->KVM-->Switch--->Node

C.

Cabinet-->Switch-->Node--->KVM

D.

Cabinet-->Node-->KVM--->Switch

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Question # 91

On the basis of inheriting the high reliability design of OceanStor storage system, HyperMetro has newly designed some solutions

Case-level high-reliability technology maximizes the reliability of the storage active-active solution. HyperMetro’s high-reliability technology is mainly reflected in

Which of the following? (multiple choice)

A.

Cross-site cluster

B.

Cross-site data real-time mirroring

C.

Arbitration to prevent split brain

D.

Cross-site bad block repair

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Question # 92

(multiple choice) Which node types does Huawei OceanStor 9000 support?

A.

P12

B.

P25

C.

P36

D.

C36

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Question # 93

In the Huawei OceanStor backup solution, when configuring the backup software to create a storage strategy, you need to consider which of the following configurations

Module, (multiple choice)

A.

Backup media

B.

Deduplication strategy

C.

Retention period

D.

Number of write streams

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Question # 94

(Judgment) FusionStorage Block uses a unique data block slicing technology and data based on DHT Hash

The routing algorithm can evenly distribute the data of the volume to the fault domain of a larger resource pool, so that each volume can obtain a larger

IOPS and MBPS performance also makes the load of each hardware resource relatively balanced.

A.

T

B.

F

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Question # 95

VADP backup mode does not include: single selection

A.

SAN

B.

NAS

C.

NBD.

D.

Hot-Add

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Question # 96

(multiple choice) The daily inspection performance indicators of the big data storage system include:

A.

Disk utilization

B.

CPU utilization

C.

Memory utilization

D.

Node throughput

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Question # 97

Which option is not included in the three elements of Huawei's main-standby disaster recovery program information survey?

A.

Project background

B.

Customer needs and refinement C. Project implementation plan

C.

Confirmation of the live network environment

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Question # 98

The LUN size relationship between production storage and disaster recovery storage configuration remote replication is: the capacity of the secondary LUN is greater than or equal to the capacity of the primary LUN.

A.

True

B.

False

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Question # 99

(multiple choice) The network file sharing protocols supported by the NAS system mainly include:

A.

FAT32

B.

NTFS

C.

NFS

D.

CIFS

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Question # 100

(single choice) The network connection is required before the initial configuration of the big data system. The networking of Huawei OceanStor 9000 does not include:

A.

Front-end business network

B.

Back-end storage network

C.

Management network

D.

Heartbeat network

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Question # 101

(single choice) In the Huawei OceanStor 9000, which of the following is not an authentication method supported by NFS sharing?

A.

NIS authentication

B.

LDAP authentication

C.

Client IP address/host name authentication

D.

Local user authentication

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Question # 102

In a data backup management system, in the case of low requirements for backup performance, it is not necessary to configure media services separately

The media server module and the management server module can be installed on the same physical server.

A.

True

B.

Wrong

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Question # 103

In the HyperMetro dual-active data center solution, the quorum server mode has higher reliability than the static priority mode.

It can ensure the continuous operation of the business under various single point of failure scenarios. Therefore, Huawei's dual-active solution recommends the use of the arbitration server model. A. True

B. False

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Question # 104

The following description of the principles of making a backup strategy is wrong:

A.

Measure the frequency of data backup based on the importance of the data

B.

Measure task execution time based on the amount of data change

C.

Measure the data retention period based on the amount of data

D.

Measure backup media based on the discreteness of data

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Question # 105

(multiple choice) The daily inspection performance indicators of the big data storage system include:

A.

Disk utilization

B.

CPU utilization

C.

memory utilization

D.

node throughput

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Question # 106

In the data backup application scenario, which of the following descriptions belong to the characteristics of a physical tape library? (multiple choice)

A.

Data can be stored offline for a long time

B.

Capacity scalability is better than using a disk system

C.

Low backup and recovery performance

D.

Low management and maintenance costs

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Question # 107

Which of the following are typical application scenarios of Huawei's active-active disaster recovery solution? (multiple choice)

A.

Oracle RAC application

B.

SQL Server application

C.

DB2 application

D.

FusionSphere application

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Question # 108

In the VMware environment, the single-choice scenario where VADP cannot be used for backup is: A. Thick Disk

B. Thin Disk

C. The storage is directly connected to the virtual machine

D. VMDK

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Question # 109

The backup situation of an enterprise application was that on February 1 (Feb 1), a single-selected full backup of all files and directories was performed, and 2

Cumulative incremental backup was performed on February 2 (Feb 2), February 3 (Feb 3), and February 4 (Feb 4).

The service disk fails, and now I want to restore to the February 4th version, what backup files are needed?

A.

Feb +Feb 2

B.

Feb l+Feb 2+Feb 3+Feb 4

C.

Feb l+Feb 4

D.

Feb l+Feb 3

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