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问题 #1

Which of the following is the correct storage system installation process?

A. Installation preparation > Initialize the storage system > Establish a remote maintenance environment > Install the device > Power on > Connect cables > Check hardware installation

B. Installation preparation > Install equipment > Power on > Connect cables > Check hardware installation > Initialize storage system > Establish remote maintenance environment

C. Installation preparation > Install equipment > Connect cables > Check hardware installation > Power on > Initialize storage system > Establish remote maintenance environmentcorrect

D. Installation preparation > Connect cables > Install equipment > Power on > Check hardware installation > Initialize storage system > Establish remote maintenance environment

正确答案：C

问题 #2

HyperCDP can generate more intensive recovery points for the data on the storage device. HyperCDP copy is a full copy backup of the source data at a certain point in time.

A. True

B. Falsecorrect

正确答案：B

问题 #3

Which of the following statements about global deduplication is false?

A. Deduplicated copy in different storage policies uses the same DDB.

B. Deduplicated copy in different storage policies uses the same disk library and deduplication attributes.

C. Deduplicated copy in different storage policies uses the same deduplication pools as the backup target.

D. Different storage policies must adopt the same backup data retention period.

正确答案：D

问题 #4

In the AD domain environment, which CIFS share statement is correct? (Multiple choice)

A. The storage system supports AD domain clients that can only access the same namecorrect

B. When the AD domain client accesses the cits file share provided by the storage system, the authentication is completed through the AD domain controllercorrect

C. An AD domain client can view the cifs shared directory of other domain clients

正确答案：AB

问题 #5

In Huawei Oceanstor 9000, in order to ensure performance and improve hard disk utilization, it is recommended to set the stripe value according to the expected average file size in a directory. Regarding the stripe settings, which one is wrong?

A. The relationship between redundancy ratio and read/write performance from high to low is: N+1>N+2=N+2: 1>N+3: 1>N+4

B. Only non-empty directories can modify the redundancy ratiocorrect

C. The relationship between stripe size and read/write performance is: 512KB>256KB>128KB>16KB

D. The modified stripe size is only effective for the files that have been written, and the existing files before modification still maintain the stripe size before modification

正确答案：B

问题 #6

During daily operation and maintenance, an engineer discovered that there was a problem with the system time of multiple Huawei flash storages purchased by the company earlier, and the system time needed to be corrected. Which of the following is not a possible impact of modifying the storage device time?

A. Modifying the device time will affect the life of the hard disk, controller, etc., and may trigger an alarm for hardware expiration or aging.correct

B. If the modified device time is greater than the password validity period configured by the user, the system may force the user to change the login password.

C. If the modified device time exceeds the set deadline for saving historical performance data, the system will no longer save historical performance data.

D. If the modified device time exceeds the certificate validity period, the certificate will expire

正确答案：A

问题 #7

(multiple choice) In an OceanStor 9000 system, the total number of nodes is 10, and the data protection levels that can be configured for it are:

A. RAID1

B. 6+3

C. 6+4

D. 6+5

正确答案：BC

问题 #8

A government customer has purchased several Huawei OceanStor Dorado 18000 series storage devices for service deployment, and an engineer needs to create storage pools on the storage system. However, before doing so, the engineer must configure LUNs and LUN groups, and create the mapping between the LUN groups and host groups.

A. ATRUE

B. BFALSE

正确答案：B

问题 #9

Which of the following descriptions about the cache in Huawei Oceanstor 9000 is wrong?

A. 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

B. The secondary cache is used to cache the hotspot data of this node. Simultaneously cache the hotspot data of other nodes in the same nodecorrect

C. The second-level cache is composed of SSD disks. If there is no SSD disk in the node, there is no second-level cache

D. Telegram cache (NVDIMM) is mainly used as a write cache.

正确答案：B

问题 #10

A well-known customer in an industry purchased two Huawei OceanStorDorado 18000 series storages for business deployment. In order to ensure high reliability of the business, engineers configured the HyperMetro active-active feature on the storage. It is known that the arbitration mode of the active-active is static priority mode, and storage A is prioritized and storage B is non-prioritized. Please analyze what the arbitration result is in this mode when the link between storage A and storage B fails?

A. Both the LUN of storage A and the LUN of storage B continue to run services

B. The LUN of storage A continues to run services, while the LUN of storage B stops running servicescorrect

C. The LUN of storage A is inaccessible, and the LUN of storage B stops running services.

D. The host cannot access the LUNs of storage A and storage B

正确答案：B

问题 #11

In Oceanstor 9000, if a hard disk is offline for 15 minutes, the recovery method of the data on the hard disk is: the system calculates the data on the hard disk and restores the data to other normal hard disks.

A. Truecorrect

B. FALSE

正确答案：A

问题 #12

When using Huawei flash storage, if an engineer wants to calculate the effective write bandwidth of the disk, which of the following calculation formulas can be used?

A. Hard disk effective write bandwidth = single disk write bandwidth x number of hard disks

B. Disk effective write bandwidth = single port bandwidth x number of ports

C. Hard disk effective write bandwidth = single disk write bandwidth x number of hard disks x (number of data disks / total number of disks)correct

D. Hard disk effective read bandwidth = single disk read bandwidth x number of hard disks x (number of system disks/total number of disks)

正确答案：C

问题 #13

A multinational company has a huge business, with customer business data scattered in multiple locations, and the distance between locations is greater than 1000 km. The company hopes to centrally manage the backup data of each site, so that users can analyze and mine all data without affecting normal business, and any business site suffers a disaster, the company can take over the business and perform data recovery. In this case, which disaster recovery backup solution the enterprise should choose?

A. Central disaster recovery and backup solution, synchronous remote replication is selected between the business site and the central sitecorrect

B. Two-site three-center solution, with asynchronous remote replication between sites

C. Two-site three-center solution, with synchronous remote replication between sites

D. Central disaster recovery and backup solution, asynchronous remote replication is selected between the business site and the central site

正确答案：A

问题 #14

As a next-generation storage system, Huawei OceanStor Dorado series can focus on core enterprise services and meet enterprises' service requirements. Which of the following statements are false about Huawei OceanStor Dorado series storage systems?

A. AThe back-end shared interface module of OceanStor Dorado 18000 is inserted into the enclosure. The disk enclosure connected to the interface module can be accessed by controllers in the engine at the same time.

B. BDorado V6 series and new converged storage products use the PCIe Scale-Out architecture.

C. COceanStor Dorado 18000 uses 200 Gbit/s RDMA shared interface modules for cross-engine expansion, implementing full interconnection between 8, 12, and 16 controllers.

D. DOceanStor Dorado 18000 supports a maximum of 28 interface modules and implements intra-engine mirroring and cross-engine interconnection through the 100 Gbit/s RDMA network.

正确答案：C

问题 #15

The HyperLock (WORM) feature of Huawei Storage allows the file to write data only once, cannot be written repeatedly, and is not allowed to be modified, deleted, or renamed.

A. Truecorrect

B. False

正确答案：A

问题 #16

A government customer purchased two Huawei all-flash storages for business deployment. During the use of the storage, engineers found that the storage performance often fluctuated. If the engineer wanted to locate the storage performance fluctuation problem at this time, it would involve many operations. 1- Check whether there are obvious changes in IO model or business load at the fluctuation time point 2-Analyze the latency fluctuation module through the latency location tool FTDS on the storage side 3- C

A. 456 can locate the problem, but 123 cannot

B. 123456 can help locate the problemcorrect

C. 12 can locate the problem, but 3456 cannot

D. 123 can locate the problem, but 456 cannot

正确答案：B

问题 #17

An industry customer purchased several Huawei OceanStor Pacific 9950 distributed storages for business deployment. Now the engineer needs to configure NFS file sharing services on the storage. Which of the following configuration operations is correct?

A. Before creating an account, engineers must create a Dtree and a namespace.

B. When configuring a business network, engineers must create subnets and AccessZones, and in the subnet configuration, engineers must disable the universal DNS service.

C. If the engineer wants to enable the NFSv4.0 service, he can do so by configuring the change service Nfs-config nfsv40-status-enable account-name-XX command.correct

D. When creating an NFS share, engineers do not need to select a namespace, but must select a dtree.

正确答案：C

问题 #18

multiple choices. The possible causes of common business failures in the Huawei Oceanstor 9000 storage system include: (multiple choices)

A. AFile system is abnormal

B. Bprotocol exception

C. CAbnormal connection with external authentication server

D. DClient setting is abnormal

正确答案：ABCD

问题 #19

Regarding the read cache process of Huawei's distributed storage multi-level cache technology, which of the following read hits is the priority?

A. Memory Write Cache

B. SSD Read Cachecorrect

C. Memory Read Cache

D. SSD Write Cache

正确答案：B

问题 #20

When maintaining the Huawei Oceanstor 9000 system, special personnel are required to keep the root password of the system. Pay attention to encryption when passing the password, and try to avoid passing the password by email.

A. TRUEcorrect

B. FALSE

正确答案：A

问题 #21

Multiple choice Internet company A uses Huawei's hyper - converged infrastructure to build the company's information platform, which greatly facilitates operation and maintenance management. Down List which options reflect this feature ()

A. Integrated management of hardware, software, and resources

B. One - click operation and maintenance

C. Factory pre - integrated

D. Single node high performance

正确答案：ABC

问题 #22

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

A. Performance and capacity can be expanded independently

B. Fully symmetrical distributed architecture with metadata nodescorrect

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

D. Support 40PB single file system

正确答案：B

问题 #23

An enterprise administrator created a shared folder on the root directory of the file system, and created 3 different Quota Trees under the root directory for Manager A (Quota Iree 1), Project Department B (Quota Tree 2) and Sales Department C (Quota Tree 3) for being used alone. Which of 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 Treecorrect

D. Cache partition can be set on Quota Tree 2

正确答案：C

问题 #24

When delivering a Huawei flash storage project, an engineer introduced the SAN/NAS integrated architecture to the customer. Which of the following descriptions of the architecture is wrong?

A. In the protocol layer, NFS/CIFS supports DTOE offloading, but iSCSl does not.correct

B. The software architecture can be divided from top to bottom into: protocol layer, data service layer, cache layer, file and block space management layer, and storage pool layer

C. The protocol layer is responsible for protocol parsing and permission management. SAN and NAS are two sets of semantic logic, so different service entry components are used to deliver and implement them respectively.

D. The space management layer adopts the AA high reliability mode, which can provide reliable data protection capabilities based on the customer's actual business scenarios.

正确答案：A

问题 #25

The OceanStor hybrid flash storage system uses a SAN/NAS integrated design. Which of the following file backup protocols does it support?

A. HTTP

B. CIFScorrect

C. NDNP

D. FTP

正确答案：B

问题 #26

Which of the following options does not include the file sharing interface provided by the Huawei Oceanstor 9000 system?

A. Objectcorrect

B. NFS

C. CIFS

D. FTP

正确答案：A

问题 #27

Regarding the protocol layer of Huawei distributed storage products, which of the following statements are correct? (Multiple choice)

A. File NFS access is not supportedcorrect

B. Objects support S3/Swift accesscorrect

C. Block supports iSCSI protocolcorrect

D. Support big data HDFS accesscorrect

正确答案：ABCD

问题 #28

An industry customer has purchased a Huawei OceanStor Pacific 9950 scale-out storage device for service deployment. During an inspection of the device, the location indicator of a main storage disk module is steady yellow. What is the status of the disk module?

A. AThe main storage disk module is being located.

B. BThe main storage disk module is running properly.

C. CThe main storage disk module is powered off.

D. DThe main storage disk module is faulty or about to fail.

正确答案：D

问题 #29

(multiple choice) Which of the following are correct in the description of the CIFS protocol?

A. Data transmission based on TCP protocol

B. Data transmission based on UDP protocol

C. Linux platform file sharing agreement

D. Windows platform file sharing agreement

正确答案：AD

问题 #30

After purchasing a Huawei OceanStor Dorado series storage system, a customer needs to configure basic storage services in the storage system. Which of the following operations are optional in the basic service configuration?

A. AConfiguring connectivity between a host and the storage system

B. BCreating a port group

C. CCreating a mapping

D. DCreating a LUN group

正确答案：BD

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