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1. Which of the following expansion technologies is not included in the intelligent many-core technology supported by OceanStor Dorado?

Business Grouping Technology

Cross-core access technology

CPU grouping technology

Inter-core lock-free technology

Question 1 of 33

2. An industry customer purchased several Huawei OceanStorPacific series distributed storages for business deployment, and engineers configured the SmartMigration feature on the above storage devices. Due to actual business needs, engineers now want to modify the split mode and migration rate of SmartMigration.
Which of the following SmartMigration operating states does not allow engineers to perform the above modification operations?

Abnormal disconnection

Disconnect

Migration failure

Migrating

Question 2 of 33

3. 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?

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

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

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.

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

Question 3 of 33

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

Read-only user

Data Protection Officer

Network Administrator

Super Administrator

Question 4 of 33

5. 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?

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

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.

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

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

Question 5 of 33

6. In the DeviceManager interface, which of the following menu paths can a user use to view all the alarm information that exists and has not been repaired in the current storage system?

Monitor > Alarms and Events > Current Alarms

Monitor > Alarms and Events > All Alarms

Monitoring > Alarms and Events > Historical Alarms

Monitoring > Alarms and Events > Alarms

Question 6 of 33

7. The user purchased several Huawei OceanStorDorado devices to support the database business on the existing network, but found that multipath ping-pong effect occurred during use.
Which of the following descriptions about performance tuning for this phenomenon is correct?

During the optimization process, you can run the upadm startupdateimage command to check whether the failover function is disabled.

During the tuning process, you can run the upadm showoption command to view the multipath configuration and confirm that the multipath function has been disabled.

During the tuning process, you must use the show performanceport command to view the backend port performance indicators to assist in problem location.

To address this problem, you can usually use the echo noop >/sys/block/sdc/queuelscheduler method to temporarily modify the scheduling algorithm of the block device to optimize the multipath ping-pong effect.

Question 7 of 33

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

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

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

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

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

Question 8 of 33

9. A scientific research industry purchased several Huawei OceanStorPacific series distributed storages for business deployment, and engineers configured DPC file services on the storage.
Because the front-end business operation requires higher performance, engineers want to set the CPU of the DPC node to performance mode through the CLI command line. Please analyze which of the following commands has this function?

change service ndmp_restart_service

change pms converged_qos_policy

cpupower frequency-info

cpupower frequency-set -g performance

Question 9 of 33

10. Which of the following descriptions of the networking principles of Huawei flash storage device disk enclosures is wrong?

The P0 port of the disk enclosure is an upstream port and can only be connected to the P1 port of the upper disk enclosure.

The P1 port of the disk enclosure expansion module is connected to the P0 port of the next-level disk enclosure expansion module

Disk enclosure cascading networking usually adopts full positive connection

The interface modules of the two ports on the controller enclosure connected to the same disk enclosure should be symmetrical and have the same port number.

Question 10 of 33

11. Which of the following descriptions about the principle of the Flash Storage HyperReplication feature is wrong?

In synchronous remote replication mode, after the primary storage system receives a write I/O request from the host, it will send the write I/O request to the slave LU and the primary LUN at the same time. When both the primary LUN and the slave LUN are written successfully, it will return the write I/O success result to the host.

Asynchronous remote replication mode relies on snapshot technology. When the host initiates a write operation request, the storage system will return a successful write request to the host only if the write from the LUN is successful.

Remote replication can be divided into two modes: synchronous and asynchronous. The principles of writing data to the slave LUN are different in different modes.

In synchronous remote replication mode, the primary LUN of the production site and the secondary LUN of the disaster recovery site will establish a synchronous remote replication relationship and start the initial synchronization.

Question 11 of 33

12. 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?

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 command

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

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.

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

Question 12 of 33

13. A financial customer wants to configure the DME IQ service to perform daily management of flash storage. Before setting up DME IQ, it is necessary to open the server port of the DME IQ cloud to ensure that the storage device can send HTTP requests to the DME IQ cloud normally.
Which of the following ports does not belong to the ports that need to be opened?

8448/TCP

8900/TCP

7448/TCP

9448/TCP

Question 13 of 33

14. Huawei OceanProtect backup appliance is widely used by customers in many industries because it adopts the design of CPU Core grouping + intelligent scheduling key technology. Which of the following is an advantage of this technology?

This technology can achieve physical and logical isolation of resources and reduce latency

The system can pre-fetch data and metadata of all LUNs to improve cache hit rate

The scheduler can distribute tasks to other cores according to the business load status to achieve load balancing

This technology has the problem of overloading some cores when carrying different services, resulting in high latency

Question 14 of 33

15. 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?

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

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

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

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

Question 15 of 33

16. When engineers perform storage-side tuning on Huawei flash memory, they will take the cache prefetch strategy into consideration.
Which of the following is not a type of cache prefetching strategy?

Fixed prefetch

Smart Prefetch

No prefetching

Elastic prefetching

Question 16 of 33

17. A financial customer purchased several Huawei distributed storages. Engineers now need to install the distributed storage software through LID configuration.
Which of the following descriptions of LID configuration is wrong?

When installing software using LID, engineers need to create a LID configuration file

Before engineers use the LID Designer tool to create LID configuration files, they need to complete the planning of system deployment parameters and IP addresses.

In LID configuration mode, engineers need to manually complete operations such as node addition and network configuration on the DeviceManager interface.

In LID configuration mode, engineers can use SmartKit to configure node iBMC IP addresses, configure node management, and other operations based on the exported configuration file.

Question 17 of 33

18. 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?

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

Application scenarios of SPC-2 for large IO sequential access

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

Application scenarios of SPC-1 for large IO sequential access

Question 18 of 33

19. During routine inspections, Engineer B discovered that the power module indicator light of the OceanStor Dorado 6800 storage system that had just been used was green and flashing. What are the possible states of the power module at this time?

The power input is normal, but the device is not powered on.

No external power input

The power module is in the process of online upgrade

The power module fails

Question 19 of 33

20. In order to improve the performance and reliability of its core business, a company configured the SmartEqualizer feature in its data storage system. In the process of configuring the address pool, which of the following descriptions about the number of addresses in the IP address segment is correct?

Up to 1024

Up to 512

Up to 2048

Up to 256

Question 20 of 33

21. 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?

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

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

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

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

Question 21 of 33

22. An industry customer purchased several Huawei flash storages for business deployment. During an inspection, engineers found that some storage components had failed and needed to be disassembled and replaced.
Which of the following descriptions of the disassembly and replacement of related parts is correct?

The interface modules and system enclosures of storage devices can be replaced independently.

The CPU of the storage system cannot be replaced independently, but it can be disassembled independently.

In storage devices, button batteries cannot be replaced or disassembled.

The memory and system disk of the storage system can be replaced and disassembled independently

Question 22 of 33

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

HTTP

CIFS

NDNP

FTP

Question 23 of 33

24. A financial customer purchased a Huawei flash storage for business deployment. In order to improve the space utilization of the storage system, the engineer configured the deduplication and compression feature on the storage system.
If the engineer wants to query the data reduction information of the LUN group at this time, which of the following commands can be used to configure it?

change lun migration split consistency

show workload type detail info

show lun group reduction info lun group Id=c

show lun group reduction switch lun id=c

Question 24 of 33

25. A financial customer purchased a Huawei flash storage for subsequent business deployment. During the storage system initialization process, engineers need to configure security policies for the storage. Which of the following is not included in the content of configuring security policies?

Configure blacklist and whitelist policies

Configure account policies

Configure user account auditing

Configure login policy

Question 25 of 33

26. In a Linux system environment, which of the following commands can an engineer use to view host latency?

iostat

vmstat

sar

top

Question 26 of 33

27. Which of the following is an impossible cause of this phenomenon?

Storage controller temperature is too high

LUN Fault page exceeds the limit

A reserved port on the storage switch is faulty.

Battery failure

Question 27 of 33

28. A financial customer purchased a Huawei all-flash storage for business deployment. During daily storage use, the administrator found that the performance of the storage had large fluctuations, and then conducted relevant inspections on the performance issues.
Which of the following is not a check item that needs to be done for performance fluctuation issues?

Check whether there are obvious storage background tasks at the fluctuation time point, such as data reconstruction, etc.

Check whether there are any abnormal SmartKit operations during the fluctuation period

Check whether there is an obvious hit rate mutation at the fluctuation time point

Check whether there are obvious hardware resource bottlenecks on the storage side at the fluctuation time point

Question 28 of 33

29. A financial customer purchased several Huawei OceanStorPacific storages for business deployment. Engineers configured object storage services on the storage system. It is known that there is an AD domain controller in the existing network. Engineers need to add the storage system to the AD domain controller environment. Please analyze which of the following is not a prerequisite that needs to be met before adding the AD domain controller?

IDAP domain environment needs to be built

Before joining, all storage nodes and the DNS server network are connected

The AD domain server and DNS server need to be synchronized with the storage system time

TCP ports 88, 389, 445, 464, and 636 need to be opened between the storage system and the AD domain environment.

Question 29 of 33

30. A financial customer purchased a Huawei OceanStor Pacific series distributed storage and used the SmartEqualizer feature. If the customer wants to select the node with the lowest number of file service connections to process client connection requests, what load policy should the administrator configure?

By CPU usage

By number of node connections

By node throughput

By file space retention rate

Question 30 of 33

31. A well-known customer in an industry purchased a Huawei OceanStor Pacific distributed storage system for business deployment. The engineer configured NFS file sharing on the storage system, and the sharing protocol is NFSv4. If the engineer wants to switch the user view to the developer view through the command line, which of the following commands can be used to configure it?

change user_mode Current_modeuser_mode=developer

change nas_1dap advanced_config

change domain ad manager Operation-develop

change dns general address-develop

Question 31 of 33

32. An industry customer purchased a Huawei OceanStor Pacific 9950 distributed storage for business deployment. During an inspection, the engineer found that the location indicator of the main memory hard disk module of the device was always yellow. Please analyze the status of the main memory hard disk module at this time?

The main memory hard disk module is operating normally

The main memory hard disk module is being positioned

Main memory hard disk module failure or pre-failure

The main memory hard disk module is not powered on

Question 32 of 33

33. A government customer has purchased several Huawei distributed storage devices for subsequent business deployment. Now engineers are required to configure file service services under standard protocol scenarios. Which of the following is not an action that engineers need to complete during the configuration process?

Create a fusion storage pool

Enable node file service

Install DPC

Create a namespace

Question 33 of 33

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