Huawei H13-624_V5.0-ENU 시험

Question No : 1

In the era of big data, one should also have big data thinking. Which of the following statements is incorrect?

• A.In the era of big data, data processing and analysis no longer depend on random samples
• B.In the era of big data, one should be keen on pursuing the accuracy of data
• C.In the era of big data, the processing and analysis of big data tends to predict what will happen

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Question No : 2

In the N8500 cluster NAS system, there are many service support system functions, such as NFS and CIFS basic service groups.
Which of the following is not an NFS service group resource agent?

• A.NIC
• B.Hashadow
• C.Disk
• D.IP

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Question No : 3

In the "Oceanstor 9000 network diagram", what type of switch b should be?

• A.S5700
• B.IS5023
• C.CE6800

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Question No : 4

The Huawei Oceanstor 9000 InfoTier file pool policy will determine the storage location of the file creation and the target classification when the file is re-striped. Which of the following statements about the file pool policy is incorrect?

• A.The default policy has the lowest priority
• B.The default policy can be modified
• C.The relationship between the combination of strategy parameters is "or"
• D.Up to 128 file pool policies can be configured

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Question No : 5

In the Oceanstor 9000 storage system, if you want to perform complete network optimization, you need to check and adjust from two aspects: storage nodes and switches.

• A.TRUE
• B.FALSE

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Question No : 6

Adjust the TCP parameters of LINUX clients accessing the Huawei Oceanstor 9000 cluster to improve access performance. Under the 10GE network, TCP
It is recommended to increase the sending and receiving buffer size to the following values, net.ipv4.tcp_rmem='4000000 8000000 16000000'net.ipv4
+tcp_wmem='4000000 8000000 16000000' [Single Choice]

• A.TRUE
• B.FALSE

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Question No : 7

When restarting the Huawei Oceanstor 9000 node, if the log information shows "phy: 25; handle SMP req 2" and "phy: 26; handle SMP req 2", it means that the system disk is faulty, which may cause it to fail to start normally.

• A.TRUE
• B.FALSE

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Question No : 8

In Huawei Oceanstor 9000, the client that processes the write request will slice the data according to the protection level specified by the file, write the data slices to the power-saving memory on the corresponding node, and then calculate the calibration by each node. Check the data sheet and write it into the power-saving memory of each 2 nodes. After all nodes are successfully written into the power-saving memory, the write operation is successful.

• A.TRUE
• B.FALSE

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Question No : 9

The metadata in Oceanstor 9000 object storage implements redundancy between nodes through mirroring, and each copy is an independent and complete copy, so as to improve the security of metadata and the performance of parallel metadata

• A.TRUE
• B.FALSE

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Question No : 10

Regarding the description of the data protection function of the Huawei Oceanstor 9000 system, which of the following options is incorrect?

• A.Oceanstor 9000 implements N+M redundant storage of data through ErasureCode
• B.Oceanstor 9000 implements redundant storage of metadata through mirroring
• C.After physical domain division is enabled, a hard disk or node failure in a single domain will cause data reliability degradation or failure in other domains
• D.When the protection level is N+1, the minimum number of nodes required by the cluster is 3

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Question No : 11

Huawei Oceanstor 9000 provides external domain name resolution services through the "InfoEqualizer DNS IP address", accessed by dynamic domain names, the following types of file sharing, if a node failover occurs, which of the following sharing methods will not be interrupted?

• A.NFSv3 file sharing
• B.NFSv4 file sharing
• C.CIFS file sharing
• D.FTP file sharing

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Question No : 12

Which of the following descriptions about the physical division of Oceanstor 9000 is wrong?

• A.Physical partitioning is an effective means of isolating faults
• B.The failure of certain nodes will reduce the reliability level of data on other nodes in a physical domain with these nodes
• C.Oceanstor 9000 realizes physical division through node pool and classification method
• D.The administrator must add at least 2 storage nodes to a domain

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Question No : 13

When analyzing and adjusting the factors affecting the performance of the Huawei Oceanstor 9000 client, the steps involved are: A - Check and adjust external interference factors. B - View performance metrics for performance monitoring tools. C - Check and adjust system configuration
Which should be the correct order?

• A.abcba
• B.bcbab
• C.acbab
• D.babcb

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Question No : 14

Regarding the principle of the Erasure Code N+M redundancy technology implemented in Oceanstor 9000, which item is wrong?

• A.The Oceanstor 9000 system can configure different data protection levels for different directories/files
• B.The data written to the Oceanstor 9000 system will first be divided into chunks according to the size
• C.For every N chunk, calculate the check blocks of M chunks according to the ErasureCode algorithm
• D.The utilization rate of the protected data space is about N/(N+M). The reliability of the data is determined by the value of
• E.The larger the M, the higher the reliability

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Question No : 15

The Wushan file system in Oceanstor 9000 adopts the object storage method, but it only uses object storage for data, and does not use object storage for metadata

• A.TRUE
• B.FALSE

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