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質問 # 422
The network file sharing protocols supported by the NAS system mainly include: (multiple choice)
- A. NFS
- B. NTFS
- C. CIFS
- D. FAT32
正解:A、C
質問 # 423
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. Quota Tree quotas in the root directory must be consistent
- B. You can limit the CPU usage on Quota Tree
- C. Cache partition can be set on Quota Tree 2
- D. According to business needs, different quotas can be configured for each Quota Tree
正解:D
質問 # 424
(multiple choice) OceanStor 9000 adopts Erasure code technology to protect data. If a site has 6 nodes, and the customer hopes that even if three disks are broken in one strip, the data can still be restored. The available redundancy protection levels are as follows:
- A. 4+2
- B. 4+3:1
- C. 12+3:1
- D. 6+3
正解:B、C
質問 # 425
The storage capacity of site A is 2543GB. The storage capacity of site B is 3000GB. The storage capacity of site B is 3000GB.
The backup data is remotely copied to site A and saved. Consider the case of replication compression, the compression ratio is 3, and the back-end storage capacity required by site A is calculated.
What is the amount?
- A. 3865GB.
- B. 4644GB.
- C. 3543GB.
- D. 4549GB.
正解:C
質問 # 426
In a customer scenario, the front-end uses a GE network and the back-end uses a 10GE network. The following options use the corresponding interface The correct way is:
- A. A0-0 and B3-1 are connected to the front-end GE network, and A0-1 and B3-0 are connected to the back- end 10GE network
- B. A0-0 and A0-1 are connected to the front-end GE network, and B3-0 and B3-1 are connected to the back- end 10GE network
- C. A0-0 and A01 are connected to the back-end 10GE network, and B3-0 and B3-1 are connected to the front-end GE network
- D. A0-0 and B3-0 are connected to the front-end GE network A0-1 and B3-1 are connected to the back-end 10GE network
正解:C
質問 # 427
The fully balanced (Active-Active) multi-choice architecture of Huawei's all-flash storage guarantees a securities company Transaction business at high concurrency. Regarding the architecture, which of the following statements are correct
- A. All controllers participate in business processing, LUNs have no ownership, and controller load balancing is realized
- B. Distribute IO evenly to all front-end ports to achieve load balancing of access
- C. IO is evenly distributed to all controllers, realizing front-end load balancing
- D. Data balance is distributed to all SSDs, realizing disk load balance
正解:A、B、C、D
質問 # 428
A customer uses Huawei Oceanstor 9000 to store its massive files. In order to facilitate sharing among multiple departments, a Dedicated catalog. After running for a period of time, the storage resources became tense, analyze the reason is that some departments are overused
0ceanstor9000, so the customer can limit the use of space by setting quotas on the directories of these departments To ensure that other departments can use 0ceanstor 9000 storage resources normally
- A. False
- B. True
正解:A
質問 # 429
In Oceanstor 9000, if the data protection level is set to 4+2, the corresponding metadata will generate 3 copies of the same Of the mirror.
- A. False
- B. True
正解:A
質問 # 430
In the 0ceanstor 9000 system, a node pool refers to a collection of nodes with the same characteristics (physical type/access specific energy).
Dynamic hierarchical storage allows the physical nodes in the same file system to be divided into different node pools.
- A. False
- B. True
正解:B
質問 # 431
DASH Copy is an optimized auxiliary copy, which copies all data blocks from the source disk library to the target disk library each time.
- A. False
- B. True
正解:A
質問 # 432
Which of the following service interfaces does the Huawei N8000 clustered NAS system provide?
- A. 10GE
- B. GE
- C. FC
- D. SAS
正解:A、B
質問 # 433
When Huawei Oceanstor 9000 is used in large file scenarios, we should focus on its OPS,
- A. False
- B. True
正解:A
質問 # 434
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. False
- B. True
正解:A
質問 # 435
Multi-select Huawei Oceanstor 9000 During the software installation process, you also need to apply for some temporary IP addresses for the back-end business network.
For the description of these temporary|P addresses, the correct one is: (multiple choice)
- A. If the cluster has 6 nodes, you need to apply for 6 P addresses
- B. Need to specify which node to use.-An IP address
- C. After the software installation is completed, these addresses will be deleted automatically
- D. It does not matter if these temporarily planned back-end storage network IP addresses overlap with the actual planned back-end storage network IP addresses of the nodes.
正解:A、B
質問 # 436
The single-choice clustered NAS system uses cluster volume management technology on the basis of full interconnection of data channels and communication channels to provide full connectivity.
Bureau's storage management. Any node in the cluster can access the same-storage space with the same volume device name, ensuring that the block device can access consistency
- A. wrong
- B. True
正解:B
質問 # 437
Large e-commerce company A uses Huawei hybrid flash storage to ensure its core business. Regarding the chip technology used in it, the following Which statement is correct ()
- A. SSD memory chip, the core FTL algorithm is built into the self-developed chip, and the chip directly confirms the information such as the reading and writing position
- B. Intelligent management chip, built-in security encryption engine
- C. Front-end transmission, smart network card chip supports 32G FC, 100G Ethernet protocol processing to realize hardware offloading
- D. Controller Kunpeng 920 chip is not only a CPU, but also integrates three chips of south bridge, network card, and SAS controller
正解:A、B、C、D
質問 # 438
If there is a third-party cabinet in the equipment room, the inspection contents of the third-party cabinet include: (multiple choice)
- A. Cabinet parameters
- B. Cabinet power system
- C. Ground bearing capacity of the machine room
正解:A、B、C
質問 # 439
Regarding the description of the technical principle of the DCL small bitmap in remote replication, which items are incorrect of ?
- A. Small bitmap technology splits a 64KB Chunk into 16KB Chunk with smaller granularity to remember Record the difference.
- B. Small bitmap technology can be applied to asynchronous remote replication.
- C. According to the principle of small bitmap technology, when there are 6 consecutive different data addresses that need to be synchronized, The granularity of the copy at this time is 4KB.
- D. The small bitmap technology can reduce the amount of data copying and the risk of data loss, and improve the copy performance.
Reduce RPO.
正解:A、D
質問 # 440
A company purchased multiple sets of Huawei distributed storage, deployed them in multiple data centers, and used object service remote replication to build a disaster recovery system.
If these distributed storages are planned in the same area, then this area has one and only one default cluster, and other clusters are non-default clusters.
Identify the cluster.
- A. True
- B. Wrong
正解:A
質問 # 441
To ensure data reliability, an enterprise established a remote replication pair between the master LUN at site A and the slave LUN at site B. The following In the statement about the data relationship between the Pair status and the master-slave LUN, which options are correct ()
- A. If the link used for remote replication is disconnected or the primary or secondary LUN of remote replication fails, the Pair operating status will be "split
- B. "When the Pair running status is "Normal", it means that the data of the primary LUN and the secondary LUN are successfully synchronized.
- C. If the engineer manually disconnects the Pair relationship between the master LUN and the slave LUN, then the Pair running status is "split" and the master LUN Data replication between and from the LUN is suspended
- D. When the Pair status is "synchronizing", the slave LUN cannot be read or written at this time
正解:B、C、D
質問 # 442
The following description of the cache in Huawei 0 Ceanstor 9000
Which one is wrong?
- A. The telegram cache (NVDIMM) is mainly used as a write cache.
- B. The second level cache is used to cache the hot data of this node. At the same time cache the hot data of the same node and other nodes
- C. The first level cache is the read cache of the storage node, and the location of the global cache is in the first level cache
- D. The second-level cache is composed of SSD disks, if there is no SSD disk in the node, there is no second-level cache
正解:B
質問 # 443
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