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问题 #1
Which of the following statements are not the features of the horizontally extended file storage function?
A. Distributed metadata management, supporting linear expansion of 3~4000 nodes.correct
B. The self-developed distributed file system OceanStor DFS supports massive unstructured data storage and realizes a unified global namespace.
C. Provide object storage services, compatible with Amazon S3 interface, and compatible with OpenStack Swif interface.
D. Supports integration with FusionInsight Hadoop/Cloudera Hadoop packaged with open source Hadoop components, allowing users to easily build an enterprise-level big data analysis platform.
问题 #2
Which of the following statements about unpacking and inspection is wrong?
A. If there is a wrong or out of stock when unpacking and inspecting the goods, please fill in the "Cargo Error Feedback Form" and report it to the local office
B. When opening the box for inspection, the engineering supervisor can open the box and check the goods separatelycorrect
C. If the goods do not match the packing list, the equipment that has been unpacked should be transferred indoors for proper storage
问题 #3
(single choice) Which of the following is the correct power-on sequence of the Huawei OceanStor 9000 big data storage system?
A. Cabinet-->Switch-->KVM--->Node
B. Cabinet-->KVM-->Switch--->Node
C. Cabinet-->Switch-->Node--->KVM
D. Cabinet-->Node-->KVM--->Switch
问题 #4
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?
A. Monitor > Alarms and Events > Current Alarmscorrect
B. Monitor > Alarms and Events > All Alarms
C. Monitoring > Alarms and Events > Historical Alarms
D. Monitoring > Alarms and Events > Alarms
问题 #5
A company purchased a set of Huawei distributed storage and used QoS flow control technology to control the user's I/O when deploying block services. Which mechanism can be used to manage the I/O queue?
A. Token bucketcorrect
B. File bucket
C. Data bucket
D. Object bucket
问题 #6
LLD (Lom Level Desigm, detailed design) is based on the determined target network architecture, clearly designing the scope of the network and functional deployment plan; the specific design content was paid attention by the customers within the scope of the contract, including clarifying the interactive process of the important business, the function allocation of all services on each network element, the peripheral docking relationship of the design network element, the docking requirements and complianc
问题 #7
Huawei hybrid flash storage adopts the structure of RAID 2.0+ software architecture, which realizes the virtualization of the underlying media and the virtualization of the upper-level resources, and at the same time solves the problem of rapid data reconstruction and intelligent allocation of resources.
问题 #8
The object storage services provided by Huawei Distributed Storage (compatible with Amazon S3 and OpenStack Swift) all provide a unified RESTfulAPI, and the client can access the storage node through the RESTfulAPI to realize data storage.
问题 #9
When configuring primary and secondary disaster recovery, which of the following conditions must be met for the LUNs on the primary and secondary arrays?
A. AThe size of the secondary LUN must be greater than or equal to the primary LUN.
B. BThe backup side needs to be configured with the same RAID level, and the size of the backup side LUN must be the same as that of the primary side LUN.
C. COnly the size of the backup LUN and the primary LUN are the same.
D. DThe backup side needs to be configured with the same type of hard disk, and the size of the backup side LUN must be greater than or equal to the primary side LUN.
问题 #10
Which of the following scenarios is most suitable for the SmartCache feature of Huawei hybrid flash storage?
A. Write random small I/O scenarios
B. Read random small I/O scenariocorrect
C. Write sequential I/O scenario
D. Read sequential I/O scenario
问题 #11
When a user analyzed his production equipment Oceanstor 9000 with Systemreporter, he found that the CPU utilization rate of some nodes in a certain partition exceeded 80%, but the average CPU utilization rate was about 50%. In addition, he found that the read and write bandwidth of a certain node remained within the performance specification More than 80% of all nodes, and less than 60% of other nodes. In this scenario, which of the following load balancing strategies is recommended?
A. Round Robin
B. By CPU utilization
C. Throughput by Node
D. Comprehensive negative results by nodecorrect
问题 #12
A financial customer purchased several Huawei distributed storage devices for business deployment. In the unstructured service scenario, engineers need to divide the network into multiple planes. Which of the following descriptions of the relevant network plane is wrong?
A. The management internal network is used for data communication between storage nodes and management nodes, including deployment upgrades, resource configuration, performance alarm reporting, certificate key updates, etc.
B. The management network is mainly used for system management and maintenance, and is connected to the customer management network
C. In the file service DPC scenario, the storage backend network can be used to communicate with the computing nodes to process the communication data between the DPC and the OSDcorrect
D. The business plane is used to connect with customer application systems and access storage through interfaces such as S3, HDFS, NFS, CIFS, and POSIK
问题 #13
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.
问题 #14
(multiple choice) The value of Huawei OceanStor 9000 InfoTier is reflected in:
A. It can ensure the system's response speed to hot data access and improve the storage performance of the entire system.
B. Comprehensively utilize the cost advantages of different storage media to effectively reduce deployment and maintenance costs.
C. Improve system storage performance and realize intelligent data management.
D. Realize automatic file migration according to the corresponding relationship between file attributes and different storage devices, reducing the cost and complexity of manual management.
问题 #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
问题 #16
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
问题 #17
If the alarm indicator of the storage controller enclosure is yellow, it indicates that the storage system has a critical alarm.
问题 #18
Regarding the high-reliability architecture of Huawei's all-flash storage, which of the following statements are correct ()
A. ATolerate 7 successive failures
B. BStorage system components adopt dual redundant design
C. CTolerate single engine failure
D. DTolerate simultaneous failure of 2 controls
问题 #19
The object service provides the online aggregation capability of small objects. The small objects uploaded by the client are written into the SSD cache first, aggregated into an EC strip size, and then EC is calculated, and the data strips and EC are calculated automatically the parity is stored on the HDD.
问题 #20
If the Huawei N8000 clustered NAS system has 4 engine nodes and each node has 4 service network ports, how many virtual IPs do you need to plan?
A. 15
B. 16
C. 17correct
D. 18
问题 #21
Which protocol does Huawei Distributed Storage Object Service use to obtain resource statistics of tenants and buckets ()
A. ASSL
B. BSMI-S
C. CSNMP
D. DREST
问题 #22
Company A plans to adopt hyper-convergence to realize the rapidly changing information needs of the enterprise. Which of the following items are the architectural features of hyper-convergence?
A. Business-centric Scale-Out architecturecorrect
B. Data-centric Scale-Up architecture
C. Data-centric Scale-Out architecture
D. Computing-centric Scale-Up architecture
问题 #23
File system backup needs to consider compatibility issues. Which of the following statements is wrong?
A. Use a new version of the backup software. If the operating system version is too old, an updated version is required.
B. It is necessary to confirm the type and version of the operating system and file system of the backup source.
C. The operating system or application version is too new, you can wait to update the backup software version.
D. If the application is not in the backup software compatibility list, you can export the application data to a file by other means, and then back up the file.
问题 #24
When Huawei Oceanstor 9000 is used in a large file scenario, we should focus on its OPS.
问题 #25
In Oceanstor 9000, which is wrong about WushanFS global cache technology?
A. The Global Cache in WushanFS logically forms the memory space on all storage servers into an overall memory resource pool
B. The data in the cache of a certain node cannot be hit by the read and write services of other nodescorrect
C. Global cache technology helps to improve node memory resource sharing
D. WushanFS uses distributed locks to implement global cache data management. The same business data is only cached on a certain node. When other nodes need to access the data, they can obtain the cached data by applying for locks.
问题 #26
In RAID2.0+ technology, what is the default size in MB of the CHUNK segmented from SAS hard disks?
A. 512MB
B. 256MB
C. 64MBcorrect
D. 64KB
问题 #27
Regarding the performance of hard disks under various types of Huawei Oceanstor 9000 nodes, which one is the correct order from high to low?
A. P25 Node SSD hard disk-->P25 Node SAS hard disk-->P12 SATA hard disk-->P36 Node SATA hard disk-->C36 SATA hard disk
B. P25 Node SSD hard disk-->P25 Node SAS hard disk-->P12 SATA hard disk-->C36 SATA hard disk
C. P25 Node SSD hard disk-->P25 Node SAS hard disk-->P36 Node SATA hard disk-->P12 SATA hard disk-->C36 SATA hard diskcorrect
D. P25 Node SSD hard disk-->P25 Node SAS hard disk-->P36 Node SATA hard disk-->C36 SATA hard disk-->P12 SATA hard disk
问题 #28
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?
A. IDAP domain environment needs to be builtcorrect
B. Before joining, all storage nodes and the DNS server network are connected
C. The AD domain server and DNS server need to be synchronized with the storage system time
D. TCP ports 88, 389, 445, 464, and 636 need to be opened between the storage system and the AD domain environment.
问题 #29
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.
问题 #30
An engineer wants to configure the iSCSI block service on a Huawei scale-out storage device. Which of the following operations must be performed by the engineer?
A. Create a block storage pool.
B. Install DPC.
C. Configure the iSCSI service.
D. Configure DPC share access on a client.
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