السؤال #1

A customer uses Huawei Oceanstor 9000 to store its massive files. In order to facilitate sharing among multiple departments, a dedicated directory is created for each department. After running for a period of time, the storage resources become tense. The reason is that some departments overuse the storage space on Oceanstor 9000. Therefore, the customer can limit the use of space by setting quotas on the directories of these departments to ensure other departments can normally use Oceanstor 9000 storage res

A. TRUE

B. FALSEcorrect

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اجابة صحيحة: B

السؤال #2

Huawei's converged storage has the function of parallel fast data reconstruction. Data fragments are broken up in the resource pool. After a hard disk fails, it can be automatically rebuilt in parallel within the full resource pool. Only the actual data is rebuilt without a separate hot spare disk.

A. True

B. Falsecorrect

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اجابة صحيحة: B

السؤال #3

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. TRUEcorrect

B. FALSE

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اجابة صحيحة: A

السؤال #4

On the storage device, through which of the following configurations, the alarm information can be saved to the designated FIP server?

A. Alarm dumpcorrect

B. Email notification

C. Configure Syslog notification

D. Configure SNMP

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اجابة صحيحة: A

السؤال #5

When delivering Huawei all-flash projects, Huawei engineers introduced the HyperCDP feature of flash storage to customers. Which of the following statements are true about this feature?

A. HyperCDP is a high-density snapshot and requires the system to construct file system objects

B. When an application server sends a request to write data to the source LUN after a HyperCDP snapshot is created, the storage system uses the copy-on-write (COW) technology to save the new data to a new location in the storage pool and directs the source LUN's pointer to the new location

C. Copies created using HyperCDP can be used for data analysis and application testing

D. HyperCDP snapshots cannot be directly mapped to hosts

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اجابة صحيحة: BC

السؤال #6

Which of the following statements about Oceanstor 9000 maintenance is incorrect?

A. ps-ef command to check TCP service/port

B. To view the information of all accounts, the command cat/etc/passwd can be used

C. The system provides an admin (super administrator) account by default, and the administrator account is not allowed to be deleted

D. Only super administrator users can execute the create system user command to create users

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اجابة صحيحة: A

السؤال #7

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

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اجابة صحيحة: B

السؤال #8

A government customer purchased multiple Huawei distributed storage devices to provide DPC file services for upper-layer businesses. During the DPC service configuration process, engineers need to plan and configure storage switches. Which of the following descriptions of storage switch configuration requirements is wrong?

A. During the configuration process, if the control network does not cross subnets, but there will be cross-subnet expansion operations later, engineers must configure VLAN and flow control, but there is no clear configuration requirement for the control network gatewaycorrect

B. When the transmission protocol is RoCE, engineers need to configure VLAN and flow control

C. Engineers can form M-LAG with multiple switches, and when the transmission protocol is IB, engineers need to enable subnet management

D. During the configuration process, engineers need to configure the IP address of the switch management network port

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اجابة صحيحة: A

السؤال #9

Based on RAID2.0+ technology, during data reconstruction within the same RAID group, which of the following is the corresponding relationship between the normal data blocks used for reconstruction and the faulty data blocks?

A. Many to One

B. One-to-one

C. One-to-many

D. Many-to-manycorrect

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اجابة صحيحة: D

السؤال #10

Which of the following statements about snapshots is correct?

A. Snapshot is the newly written data

B. Snapshot refers to a consistent data copy of source data at a certain point in timecorrect

C. Snapshot data can only be read by the host and cannot be changed

D. Snapshot is a physical copy of the complete source data

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اجابة صحيحة: B

السؤال #11

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. FALSEcorrect

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اجابة صحيحة: B

السؤال #12

Huawei's hyper-converged storage uses the structure of distributed storage logic. Which of the following is the function of the OSD module?

A. Provide standard SCSI/iSCSI services for VMs and databases

B. Provide hard disk management

C. CHASH partition

D. Provide management of storage cluster statuscorrect

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اجابة صحيحة: D

السؤال #13

SPC certification is a SAN performance test benchmark evaluated by a third party. Which of the following descriptions of the scenarios corresponding to SPC certification is correct?

A. SPC-2 is used for fast response to random small IOs

B. Application scenarios of SPC-2 for large IO sequential accesscorrect

C. SPC-2 is used to measure the performance of SAN arrays in three application scenarios: OLTP, Database, and Email

D. Application scenarios of SPC-1 for large IO sequential access

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اجابة صحيحة: B

السؤال #14

Create Global Zone

A. 6->5->3->1->2->4correct

B. 1->3->2->6->5->4

C. 5->3->2->4->1->6

D. 1->2->3->4->5->6

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اجابة صحيحة: A

السؤال #15

Which of the following is wrong about the CIFS share configuration of Huawei Oceanstor 9000?

A. After Notify is enabled and checked, a client's change operation in a directory cannot be perceived by other clients that are accessing this directory and its parent directorycorrect

B. After Oplock (Opportunistic locking) is enabled, the file will be cached locally before being sent to the shared storage, which will help improve the efficiency of client access

C. After the Guest is enabled and checked, the user does not need to enter the user name and password when accessing the shared directory on the client

D. After the mandatory signature is checked, the client will be forced to use the signature function

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اجابة صحيحة: A

السؤال #16

During the processing of the IO stack of Huawei's distributed big data service, the computing component sends a request to the DataNode module through the hdfs client and returns the file metadata information.

A. False

B. True

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اجابة صحيحة: B

السؤال #17

Similar to the alarm analysis method, the replacement method can be used to locate and rectify any type of faults for Huawei converged storage, and has no special requirement for maintenance personnel.

A. TRUE

B. FALSE

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اجابة صحيحة: B

السؤال #18

In Huawei distributed storage, SCSI volumes with multiple mount points are called shared volumes, and iSCSI volumes are shared volumes. In order to support the backup capability of shared volumes, the block service also supports snapshots of shared volumes, and the snapshot process of shared volumes is the same as that of ordinary volumes.

A. Truecorrect

B. False

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اجابة صحيحة: A

السؤال #19

The customer purchased several Huawei OceanStorDorado series storages for deploying active-active services. During the service management process, it was found that the active-active pairs had many service states. Which of the following is not a common status of active-active services?

A. Forced synchronization statuscorrect

B. Pause state

C. Normal state

D. Waiting for synchronization

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اجابة صحيحة: A

السؤال #20

The Persistence layer of Huawei Distributed Storage provides persistent storage capabilities, EC and multiple copies capabilities, and Plog append only access capabilities through PlogClient.

A. Truecorrect

B. False

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اجابة صحيحة: A

السؤال #21

Huawei Oceanstor 9000 alarm notification methods include email notification and SMS notification

A. TRUEcorrect

B. FALSE

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اجابة صحيحة: A

السؤال #22

In Huawei oceanstorv3, which of the following statements about cloning is wrong? (Multiple choice)

A. The capacity of the slave lun in the clone must be greater than or equal to the master luncorrect

B. The controllers to which the master lun and the slave lun belong in the clone can be differentcorrect

C. Supports dynamic adjustment of the synchronization rate during the master-slave lun synchronization process

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اجابة صحيحة: AB

السؤال #23

Regarding target deduplication, which of the following description is incorrect?

A. Does not occupy the resources of the source

B. Target end deduplication is equivalent to post-processing deduplication (Post-procesig)

C. Cannot save transmission bandwidth

D. The data block is transferred from the source end to the target end, and the deduplication operation is performed on the target end

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اجابة صحيحة: B

السؤال #24

In a storage system, there are multiple system roles. Which of the following roles has full control over the storage device?

A. Read-only user

B. Data Protection Officer

C. Network Administrator

D. Super Administratorcorrect

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اجابة صحيحة: D

السؤال #25

The block service logic architecture is a layered architecture, and each layer has its corresponding function. Which of the following is used to implement data redundancy protection?

A. Storage Service Layer

B. Storage Interface Layer

C. Data protection layer

D. Storage engine layercorrect

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اجابة صحيحة: D

السؤال #26

Which of the following is not a storage device hardware failure? (Multiple choice)

A. BBU failurecorrect

B. License failurecorrect

C. Hard disk failure

D. RAID failurecorrect

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اجابة صحيحة: ABD

السؤال #27

The Oceanstor 9000 big data storage system includes multiple subsystems, which one is used for file storage?

A. WushanFScorrect

B. WushanSQL

C. Fusion Insight Hadoop

D. Management Subsystem

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اجابة صحيحة: A

السؤال #28

A scientific research customer purchased several Huawei distributed storage systems for HPC business deployment. In order to ensure the performance requirements of the business, the engineer now needs to configure DPC file services on the storage system. Which of the following configuration descriptions of the engineer is correct? One item?

A. If an engineer wants to enable the feature that allows the creation of namespaces with the same name for different accounts, this can be achieved by executing the change space ops cnd-sameFsName args-set,1 commandcorrect

B. Engineers can install DPC software in an existing container environment and need to configure the container node and install the network management component

C. After the fusion storage pool is created, engineers need to enable the object service and big data service types of the nodes in the storage pool, while the file service type does not need to be checked

D. When creating a disk pool, engineers do not need to select main memory and cache, but need to configure the grading level

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اجابة صحيحة: A

السؤال #29

A financial customer purchased several Huawei OceanStor Pacific 9550 storages in the early stage. However, when the engineer configured the basic object service business on the storage, he found that the object service could not be enabled for the storage node. Which of the following reasons can you analyze that is not likely to cause this phenomenon?

A. The NTP clock in the storage cluster is inconsistent with the clock on the client accessing the object service

B. The cluster is not configured with NTP synchronization and does not use the same NTP time source

C. Engineers manually adjusted the time of cluster nodes, resulting in differences in conflict handling

D. A namespace with the same name is created under the same accountcorrect

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اجابة صحيحة: D

السؤال #30

An enterprise needs to provide continuous data protection for its instant transaction business, so it has created a timed HyperCDP plan for the business data LUN. 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 secondscorrect

C. Set the "reserved number" of HyperCDP to 60000

D. Create HyperCDP at a specified time every day

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اجابة صحيحة: B

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