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H13-622 Exam Dumps - Huawei Certified ICT Professional-Constructing Cloud Storage Solution

Question # 4

Which of the following statements about the principle of the file system snapshot feature provided by an N8500 clustered NAS system are correct? (Select two)

A.

When a snapshot is created, a block mapping pointing to the data on the file system is generated.

B.

If an original data block needs to be replaced for the first time, the new data block is copied to the snapshot reservation area.

C.

If anoriginal data block is replaced for the first time, the block mapping in the snapshot points to the data block in the snapshot reservation area.

D.

If a data block that has replaced an original data block needs to be replaced by a new data block, the new data block is copied to the snapshot reservation area.

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Question # 5

A big data processing system involves five layers: data collection, data storage, data processing, data analysis, and data application and presentation. Which of the following statements about the five layers are correct? (Select two)

A.

Data collection is implemented based on data sources. Attention must be paid to the use of structured and unstructured database technologies.

B.

Data storage resolves the massive data storage issue. Attention must be paid to data variety and heterogeneous data convergence.

C.

Data processing features high velocity.Attention must be paid to the parallel computing technology.

D.

Data analysis and application highlight data value. Attention must be paid attention to data mining, business intelligence, and data search.

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Question # 6

Which of the following statements about the VxVM implementation mechanism employed by an N8500 are correct? (Select two)

A.

The capacity of a physical disk and that of a virtual disk are the same.

B.

A plex consists of virtual disks.

C.

A volume consists of subdisks.

D.

The capacity of a volume can be largerthan the maximum capacity of a single physical disk.

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Question # 7

Which are the key parameters used to evaluate the performance of an N8500 clustered NAS storage system? (Select three.)

A.

Number of network ports per engine node

B.

Number and model of CPUs and memory capacity per engine node

C.

Communication links between the NAS engine and the storage units

D.

NAS engine operating system and version

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Question # 8

Which command is used to check whether a file system is mounted using the support account for N8500 V200R001?

A.

cfsmntadm display

B.

cfsmountadm display

C.

cfsmntadm show

D.

cfsmountadm show

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Question # 9

The networking of an HUAWEI OceanStor 9000 big data storage system includes which of the following? (Selectthree)

A.

Front-end service network

B.

Back-end storage network

C.

Internal communication network

D.

IPMI management network

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Question # 10

An OceanStor 9000 storage system is deployed using the OceanStor Toolkit. Which of the following statements about the settings of the OceanStor Toolkit configuration file are correct? (Select two)

A.

The cluster name can be set to9000cluster.

B.

If the InfoLink license has not been purchased, you may skip the InfoLink DNS configuration.

C.

The front-end network gateway will serve as the default gateway of all storage nodes after being configured.

D.

The data redundancy ratio is thedefault ratio of all directories on the OceanStor 9000.

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Question # 11

It is recommended that the OceanStor 9000 use 10GE for both the front-end and back-end networks.

A.

A. True

B.

False

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Question # 12

The %util value of back-end disks frequently exceeds 90% after the iostat command is run. This indicates that the bandwidth utilization is high and performance bottlenecks exist.

A.

True

B.

False

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Question # 13

Compared with traditional RAID algorithms, the Erasure Code redundancy technology provides higher reliability and more flexible redundancy policies. Which of the following statements about Erasure Code is incorrect?

A.

Data to be written is divided into multiple data blocks of the same size.

B.

The Erasure Code algorithm calculates N parity blocks for every M consecutive data blocks.(The value of N is smaller than that of M.)

C.

M+N data blocks are concurrently stored to different nodes.

D.

In Erasure Code storage mode, aconcurrent failure of N-l disks is tolerated.

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Question # 14

On Huawei N8500 V200R001, gabconfig -a can be executed to query the port communication status of a GAB member in a cluster. Port h gen is the communication port of which member?

A.

CFS

B.

VCS

C.

CVM

D.

Heartbeat membership

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Question # 15

In an N8500 clustered NAS system, the engine enclosures exchange cluster control information over a Fibre Channel heartbeat network.

A.

True

B.

False

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Question # 16

An N8500 clustered NAS system is equipped with four engine nodes and each engine node provides four service network ports. How many virtual IP addresses must be planned for the N8500?

A.

15

B.

16

C.

17

D.

18

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Question # 17

The HUAWEI OceanStor 9000 can be managed using web browsers. If an OceanStor 9000 storage system uses default settings, which of the following entered in the browser address box is correct?

A.

https://IP:httpsport/webui

B.

http://IP:httpsport/tools

C.

http://IP:httpsport

D.

https;//IP:httpsport

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Question # 18

A customer has purchased an N8500 clustered NAS storage system configured with ten 1 TB SAS disks and twelve 1 TB NL-SAS disks. Two RAID groups are planned. RAID group 1 is a RAID 5 consisting of nine SAS disks. RAID group 2 is a RAID 6 consisting of 11 NL-SAS disks. Two global hot spare disks are configured. What is the available capacity of the storage system?

A.

20 TB

B.

14 TB

C.

15.6 TB

D.

18.4 TB

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Question # 19

In which of the following situations occurs, does the Huawei OceanStor 9000 system not start load balancing?

A.

Add a node

B.

Add a hard disk

C.

The hard disk appears 3 times offline within 10 minutes

D.

Hard disk pre-failure

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Question # 20

In the node type of Oceanstor 9000, the node that does not need to consider IPMI management networking is a C72 node.

A.

TRUE

B.

FALSE

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Question # 21

The quota types supported by Oceanstor 9000 InfoAllocator are: (multiple choice)

A.

Capacity quota

B.

File quota

C.

Calculating quotas

D.

Mandatory quota

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Question # 22

The description of the analysis and adjustment of the Oceanstor 9000 system CIFS transfer size is wrong: (multiple choice)

A.

CIFS transport block size refers to the data carried in a single service request between the IP client and the Oceanstor 9000 in CIFS file sharing.

Block size

B.

Analyze the file size scale that needs to be stored in the Oceanstor 9000 to get the storage file model, then select a value of the appropriate size

C.

Adjusting the transport block size requires adjusting both the client and OceanStor 9000. If they are inconsistent, the minimum value of the two values ​​is

quasi-

D.

Since the parameter value in Oceanstor 9000 has been set to the minimum value by default, it is only necessary to adjust the parameter value of the client to the target value.

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Question # 23

In the scenario where the client has high requirements for file read and write performance, such as the high-performance computing application scenario, the back end of the Oceanstor 9000 has adopted the 10GE group.

Network, what kind of network type should the front-end business network recommend to customers? (multiple choice)

A.

10GE networking

B.

IB network

C.

GE networking

D.

FC networking

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Question # 24

In the Huawei OceanStor 9000 system, which one does the NFS share support client type include?

A.

Hostname

B.

IP address

C.

Network group

D.

AD domain

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Question # 25

The following descriptions for the CIFS protocol are correct: (multiple choice)

A.

Transfer data based on TCP protocol

B.

Transfer data based on UDP protocol

C.

linux platform file sharing protocol

D.

windows platform file sharing protocol

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Question # 26

The Oceanstor 9000 Big Data Storage System consists of multiple subsystems, which one is used for file storage?

A.

WushanFS

B.

WushanSQL

C.

FusionInsightHadoop

D.

Management subsystem

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Question # 27

The following statements about the N8500CIFS sharing are correct: (multiple choice)

A.

If you do not need to distinguish users who restrict access to the shared directory, you can choose normal sharing.

B.

If you do not need to distinguish users who restrict access to the shared directory, you can choose homeedir sharing.

C.

In normal mode, the client can only access the share through one VIP.

D.

Cluster mode data is more reliable than normal mode, but with lower performance

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Question # 28

(Optional) Which of the following modules or devices is not supported by the Huawei OceanStor 9000 FRU replacement tool?

A.

Power module

B.

Online replacement of the hard disk

C.

Cable (or optical module)

D.

IO module

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Question # 29

If the Huawei N8000 clustered NAS system has four engine nodes and each node has four service network ports, how many virtual IPs do you need to plan?

A.

15

B.

16

C.

17

D.

18

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Question # 30

In Huawei Oceanstor 9000, the client that processes the write request will process the data according to the protection level specified by the file, and write the data slice.

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

After the node writes the guaranteed power memory successfully, the write operation succeeds.

A.

TRUE

B.

FALSE

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Question # 31

In an N8500 clustered NAS system, at most how many 1 Gbit/s service ports can a single clustered NAS engine node provide?

A.

4

B.

8

C.

12

D.

16

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Question # 32

Which of the following statements about the CIFS share are correct? (Select two)

A.

CIFS normal share enables a directory to be accessed by all users.

B.

CIFS homedir share enables a directory to be accessed by all users.

C.

In Normal mode, a client can access a share through only one VIP.

D.

Compared with the Normal mode, the Cluster mode provides higher data reliability but lower performance.

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Question # 33

The network connection is required before the big data system is initialized. The networking of the Huawei OceanStor 9000 does not include:

A.

Front-end business network

B.

Backend storage network

C.

Management network

D.

Heartbeat network

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Question # 34

Which of the following is different between the wiselink and smartconnect technologies of the Oceanstor 9000?

A.

Domain name resolution function

B.

Domain Name Design and Partition Management

C.

Rebalance function

D.

IP failover function between nodes

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Question # 35

Which of the following is a description of the hardware architecture of the Oceanstor 9000?

A.

Except for the C72 node, all other nodes adopt the X86 hardware system.

B.

Wushan SQL function should be deployed to 1 node

C.

Enterprise Hadoop FusionInsight functionality should be deployed to 1 node

D.

Each node of the Oceanstor 9000 can provide external service access.

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Question # 36

What are the following statements about the CIFS protocol? (multiple choice)

A.

Transfer data based on TCP protocol

B.

Transfer data based on UDP protocol

C.

Linux platform file sharing protocol

D.

Windows platform file sharing protocol

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Question # 37

Which of the following options is correct about the switches used by the Huawei OceanStor 9000 system?

A.

Switches used with the OceanStor 9000 storage system configuration include the CE6810, S5752/S5352, and IS5023.

B.

IS5023 switch provides IB access

C.

The S5700/S5352C switch provides GE access.

D.

The CE6810 switch provides 10GE/GE access.

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Question # 38

Huawei OceanStor 9000 provides a single file system and a unified file system namespace. The following information about the OceanStor 9000 system

Which one is incorrectly described in a namespace?

A.

The namespace is automatically created when the OceanStor 9000 starts, and its name is consistent with the system name.

B.

The namespace is the root of the entire system and cannot be shared and accessed. Only the subdirectories below it can be shared and accessed.

C.

A unified namespace provides users with a unified storage resource pool to achieve centralized management and allocation of storage space.

D.

Each file share directory is a subdirectory of the namespace

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Question # 39

What file system does the Huawei OceanStor 9000 provide for a unified service access domain name?

A.

NTFS

B.

HDFS

C.

WushanFS

D.

EXT3

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Question # 40

(Judge) Through the 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 # 41

In the case of a single port, the Huawei OceanStor 9000 cannot implement the SMB3 Multichannel function.

A.

TRUE

B.

FALSE

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Question # 42

Huawei OceanStor 9000 FTP service features include: (multiple choices in this question)

A.

The unit of FTP sharing is the directory, and the shared directory can be accessed by multiple clients.

B.

Provides service node status for load balancing, and data access is evenly distributed within the cluster.

C.

Provide shared services in a clustered manner, and the nodes can monitor each other's service status.

D.

Compatible with multiple operating systems

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Question # 43

Huawei OceanStor 9000 storage system uses layered security maintenance. Which one is not the application layer security content?

A.

Password system

B.

Authorization and authentication mechanisms

C.

Use SSH/SFTP to circumvent unsecured network traffic

D.

Activity record

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Question # 44

The network file sharing protocol supported by the NAS system mainly includes: (multiple choice)

A.

FAT32

B.

NTFS

C.

NFS

D.

CIFS

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Question # 45

Which of the following is incorrect about the Huawei Oceanstor 9000CIFS shared configuration statement?

A.

When Notify is enabled, a client can not be accessed by other directories and its parent directory for changes in a directory.

Client awareness

B.

Oplock (Opportunistic locking) When enabled, the file is cached locally before being sent to the shared storage, which helps to enhance the guest.

Client access efficiency

C.

Guest is enabled, the user does not need to enter a username and password when accessing the shared directory on the client.

D.

After the mandatory signature is checked, the client will be forced to adopt the signature function. If the client is not set to the startup state, the Oceanstor 9000 will

Deny client data access requests

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Question # 46

The inforeplicator feature of the Oceanstor 9000 (C30) product supports both synchronous and asynchronous remote replication.

A.

TRUE

B.

FALSE

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Question # 47

In the Huawei OceanStor 9000 InfoReplicator feature. Pair is a data replication relationship that describes the source and destination of data replication.

The next statement about Pair's state migration is incorrect (multiple choice)

A.

In the case of a Pair failure, its status includes recovery, failure, synchronization, splitting

B.

When the abnormal link is restored and the recovery policy is manual, the status of the Pair will be migrated to “Syncing”.

C.

When the InfoReplicator configuration is destroyed, the status of the Pair changes to "Failed".

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Question # 48

In the "Oceanstor 9000 Networking Diagram", should the type of b switch be?

A.

S5700

B.

IS5023

C.

CE6800

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Question # 49

(Multiple choices) Description of the CIFS protocol Which of the following are correct?

A.

Transfer data based on TCP protocol

B.

Transfer data based on UDP protocol

C.

Linux platform file sharing protocol

D.

Windows platform file sharing protocol

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Question # 50

InfiniBand can be applied to communication between servers and servers, servers and storage devices, and servers and networks.

A.

TRUE

B.

FALSE

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Question # 51

Which of the following are possible challenges facing massive data management? (Select two.)

A.

How to implement quick data searches for higher retrieval efficiency

B.

How to ensure data authenticity and prevent data cheating

C.

How to implement PB-level storage of various data

D.

How to save storage resources by reducing the data amount

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Question # 52

Which of the following must be considered before you optimize the performance of an N8500 clustered NAS storage system? (Select three)

A.

Evaluate the feasibility of the performance target based on your experience.

B.

Use a fixed testing environment for performance optimization.

C.

Determine the testing mode based on services to ensure the comparability of the test results.

D.

Performance optimization has no impact on ongoing services. You do not need to worry about the pressure on services.

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Question # 53

Which of the following statements about the InfoLink feature of the OceanStor 9000 are correct? (Select two.)

A.

If clients attempt to access the OceanStor 9000 using domain names, theInfoLink license must be activated.

B.

If clients attempt to access the OceanStor 9000 using domain names, a DNS server must be configured.

C.

If a node becomes faulty, the system provides the failover function. This function does not need the InfoLink license to be activated.

D.

After the InfoLink license is activated, the system balances loads based on round robin, CPU usage, number of node connections, node throughput, and comprehensive node loads.

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Question # 54

Before installing software for an OceanStor 9000 storage system, you must prepare required tools, cables, and software packages. Which of the following statements about this preparation is incorrect?

A.

The SSHclient software is required for remote access.

B.

An FTP upload tool is required for uploading installation packages to storage nodes.

C.

The OceanStor 9000 storage system software is required, which contains the OceanStor SystemReporter suite.

D.

Anetwork cable is required for connecting the management PC to the OceanStor 9000 management network port.

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Question # 55

Which of the following statements about the software features of the OceanStor 9000 are correct? (Select two)

A.

The maximum supported file system capacity is40 PB.

B.

The maximum supported data recovery speed is 1 TB/hour.

C.

Each node uses the cache on the node exclusively.

D.

Thin provisioning and thick provisioning are both supported.

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Question # 56

The HUAWEI OceanStor Toolkit V100R001 is used for preventive maintenance. The preventive maintenance wizard does not include which of the following?

A.

Select Devices

B.

Select Check Items

C.

Set Check Policy

D.

Export Check Policy

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Question # 57

If homedir is enabled and a directory is specified, the OceanStor 9000 will automatically create a user directory for each user in the specified directory when local users or domain users access the OceanStor 9000 from clients for the first time. The users are authorized to read and write their own user directories. Other users, however, cannot access those user directories by default.

A.

True

B.

False

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Question # 58

You can use the HUAWEI OceanStor Toolkit to perform the operations such as preventive maintenance, information collection, and upgrade for the HUAWEI OceanStor 9000.

A.

True

B.

False

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Question # 59

When planning RAID for an N8500 clustered NAS storage system, you are advised to configure RAID 10 for database services and random read/write services.

A.

True

B.

False

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Question # 60

The flexible space of the OceanStor 9000 is attributed to the scale-out architecture, scalability from 3 to 288 nodes, and support for global namespace.

A.

True

B.

False

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