HSCP Presales Storage

1. Which statement about OceanStor Dorado component Upgrade is false?. The controllers reset. The hots are unaware of a component Upgrade. The performance is not compromised. The Upgrade duration is short.

2. Which one is not supported by OceanStor Pacific software-based data Encryption feature?. a. FIPS. b. AES256-XTS. c. AES128-XTS. d. AES-NI.

3. Which of the following is the mínimum RAID unit of Huawei RAID 2.0+?. a. Disk. b. Block. c. Cache. d. CKG.

4. Which of the following is not a capability of DME Storage to manage storage devices?. a. Oracle database Resource Monitoring. b. LUN Resource viewing and management. c. File System Resource viewing and management. d. Performance Monitoring.

5. Which technology is applied to isolate network Access to each vStore in OceanStor Dorado NAS SmartMulti-Tenant feature?. a. Physical port. b. Vlan. c. Logic interface (LIF). d. SMB service.

6. On the OceanStor Dorado high-end storage, how many controllers at most can concurrently Access one SSD?. a. 1. b. 2. c. 4. d. 8.

7. When working with Veeam, what is the role of OceanProtect Backup Storage?. a. Media Agent. b. Proxy. c. Gateway server. d. Repository.

8. Which statement is not TRUE about the dedupe and compression technologies of OceanProtect Backup Storage?. a. First step is backup data preprocessing-separating data headers from changed data. b. Second step is multi-layer inline fixed-lenght dedupe of backup data. c. Third step is feature-base Compression. d. Fourth step is Byte-Level Compaction.

9. Which statement about the Snapshot function of OceanStor Dorado NAS is incorrect?. a. Both NAS and SAN snapshots are ROW snapshots. b. Any NAS snapshots can be rolled back to the primary file System. c. NAS snapshots can be generated at an Interval of 15 seconds. d. NAS snapshots occupy storage pool space.

10. Which of the following statements about improving performance os OceanStor pacific is incorrect?. a. Small I/Os can be written to the cache to complete the write request. b. Small I/Os are Aggregation in the cache. c. Small I/Os are encoded in EC mode an then flushed to disks. d. Random writes are changed to sequential writes.

11. Which statement about the active-active architecture of OceanStor Dorado is incorrect?. a. LUNs are not owned by any Controller. b. The logical host paths are active-active. c. Loads are balanced among controllers. d. ALUA must be configured when the operting system´s native multipathing software is used.

12. The OceanStor OS monitors the response time of I/Os sent to disks. If the time excedes threshold, the System quickly responds to host trhough degraded Reading of RAID groups. What is the name of this technology?. a. Online diagnostics. b. Slow disk detection. c. Quick response to slow I/Os. d. Wear leveling.

13. When configuring Huawei New-Gen OceanStor Hybrid Flash Storage XX10, there is no need to add SAS HDD as the second performance tier between SSD and NLSAS. Which feature is supported to achieve this?. a. Hypersnap. b. SmartAcceleration. c. SmartThin. d. SmartQoS.

14. What file attributes is the base of OceanStor Dorado NAS SMB file blocking feature?. a. File Type. b. Access time. c. Create time. d. Size.

15. Which of the following tools is preferentially recommended for testing storage perfomance with Deduplication and compression enabled?. a. IOmeter, graphical user interface, easy to use. b. Vdbench, aplicable to SAN and NAS, aplicable to multiple platforms the model can be flexibly configured. The test result statistics are detailed and easy to extract to analyze. c. Orion, a common tool of the Oracle database. d. Diskspd, a test tool recommended by Microsoft.

16. Which statement is not TRUE about OceanStor Pacific?. a. OceanStor Pacific Support only x86 servers. b. All OceanStor Pacific software is developed by Huawei and has propietary intelectual property rights. c. OceanStor Pacific uses strong consistency protocols. d. OceanStor Pacific can provide file, object, and block storage services at the same time.

17. Which of the following statements about HyperGeoEC is correct in OceanStor Pacific series?. a. One data Copy is maintained between multiple sites. b. Only one site is in active state. c. Al least 2 sites are required. d. Tolerates the failure of up to 3 sites.

18. Which of following statements is not true about Veeam Secure Recovery?. a. SMB packet are transmitted in ciphertext to prevent data from being stolen. b. Before the recovery, start the antivirus software for scanning and restore the data to the production environment. Start the VMs in the isolated environment (Virtual Lab) to check whether they are normal. c. The backup storage in the production center and security isolation área uses the Secure Snapshot technology to ensure that dta is read-only and cannot be modified or deleted within in a specified period. d. Automatically disconnects the replication link to Copy data to an isolation área for higher security.

19. OceanStor Pacific series provide three Key Technologies for Improving Small I/O Write Performance, which of the following statements is incorrect?. a. DRAM is used as the cache. b. Unstructured services use the innovative BBU + DRAM architecture. c. The RDMA technology is supported for cache Mirroring between nodes. d. Larger cache space is used.

20. Which quorum modes can be available in Hypermetro?. a. Separated quorum server in third place. b. Separated quorum server in preferred site with dedicated UPS protection. c. No quorum server with static policy. d. No quorum server and policy.

21. Which types of Copy creation does OceanStore Dorado for NAS Support?. a. Create clone on a Snapshot. b. Create clone on HyperCPD object. c. Create Snapshot or HyperCPD object on a clone. d. Create multiple level cascading clone.

22. In the PoC test of OceanStor Dorado, which of the following measures can make full use of the perfomance advantages of all-flash?. a. Based on the database OLTP model, the random small I/O model with multiple LUNs and a single LUN is recommended. b. Based on actual services, it is recommended that value-added features such as Deduplication, compression, and Snapshot be enabled. c. Configure sufficient disks and front-end ports based on the tested model and target performance. d. The self-developed multipathing software is recommended.

23. Which of the following statements about Huperlication are correct by OceanStor Pacific series?. a. Multiple nodes participate in replication concurrently. b. Multi-protocol sharing, simplifyng management. c. Differential synchronization based on the granularity of volume, file, and object data blocks, saving banwidth and reducing RPO. d. Replication links don´t Support QoS control. e. Unstructured services Support network topologies (3DC) and two-level topologies (one-to-many and many-to-one).

22. In the PoC test of OceanStor Dorado, which of the following measures can make full use of the perfomance advantages of all-flash?. a. Based on the database OLTP model, the random small I/O model with multiple LUNs and a single LUN is recommended. b. Based on actual services, it is recommended that value-added features such as Deduplication, compression, and Snapshot be enabled. c. Configure sufficient disks and front-end ports based on the tested model and target performance. d. The self-developed multipathing software is recommended.

24. Which are System level reliability capability of OceanProtect Backup Storage?. a. Wear leveling and anti wear leveling. b. Active-active Controller. c. RAID-TP. d. Sync and asnc remote replication.

25. If a disk firmware bug causes I/O timeout, which of the following reliability technologies of OceanStor Dorado Will take effect?. a. Fast reconstruction. b. Online diagnosis. c. RAID reconstruction. d. Quick response to slow I/Os.

26. Which layer is included in OceanStor Dorado Converged SAN and NAS Architecture?. a. Application Layer. b. Protocol Layer. b. Protocol Layer. d. Global cache layer. e. Space management layer. f. Storage pool layer.

27. Which of the Hyper features on OceanStor Dorado 8000 can be used for both SAN and NAS?. a. HyperSnap. b. HyperLock. c. HyperReplication. d. HyperMetro.

28. Which of following models can Support Active-Active Controller mode?. a. X6000 (all-flash mode). b. X8000 (all-flash mode). c. X9000 (all-flash mode). d. X9000 (HDD mode).

29. Which of the following statements about Dynamic Granularity Adaptation of Index Space are correct by OceanStor Pacific Series?. a. Large-granularity indexes are used for large I/O writes. b. Large-granularity indexes are used for small I/O writes. c. Small-granularity variable-length indexes are used for large I/O writes. d. Small-granularity variable-length indexes are used for small I/O Writes.

30. What storage service of OceanStor Pacific SmarTier can Support?. a. File. b. Object. c. HDFS. d. Block.

31. Which are the correct decription for iNIC to offload TCP/IP protocol in OceanProtect Backup Storage?. a. Each TCP connection has an independent hardware queue to avoid the lock overhead. b. The hardware queue is operated in user mode to avoid the context switching overhead. c. The polling mode reduces the latency. d. The NIC offloads the TCP/IP protocol. The System only processes the actual TCP data Flow.

32. Which can be used in Commvault data dump for data Migration between heterogenious backup appliances?. a. DASH Copy. b. Auxiliary Copy. c. HyperReplication. d. Robocopy.

33. Which Smart series features are supported by OceanStor Dorado?. a. SmarThin. b. SmartQos. c. SmartPartition. d. SmartVirtualization.

34. Which flash-based acceleration technologies in OceanProtect Backup Storage can help to boost backup & restore performance?. a. Front-end network optmization. b. CPU computing optimization. c. Backup job scheduling optimization. d. Back-end networ optimization.

35. Which are applied for OceanStor Dorado to prevent data leakage?. a. SmartTier. b. SmartEncrypt. c. SmartErase. d. SmartContainer.

36. For Deduplication & Compression feature, which of the following are correct for the Huawei New-Gen OceanStor Hybrid Flash Storage?. a. SSD pools Support Deduplication. b. SSD pools Support Compression. c. HDD pools Support Deduplication. d. HDD pools Support Compression.

37. Which elements can be set by Data Encryption of OceanStor Pacific?. a. Tenant. b. LUN. c. Directory. d. Namespace.

38. Which of the following key hardware desings are used in OceanStor Pacific 9950?. a. High-density multi-node. b. Dedidacted backup power. c. Half-palm NVMe SSD. d. Optimal bandwidth ratio.

39. Which are the report management capabilities of DME Storage?. a. Capacity/performance report customization. b. Periodic report customization. c. Report sending by email. d. Report export as an Excel file.

40. OceanStor Dorado HyperSnap can créate high-density snapshots with the performance slightly impacted. a. True. b. False.

41. There are 25 SSDs in the storage pool, and the RAID is 22+2. If 3 SSDs were plugged out, the data Will be rebuilt in Dynamic reconstruction mode. a. True. b. False.

42. The Deduplication data consistency policy used OceanStor Dorado is strong hash. a. True. b. False.

43. The Deduplication algorithm used by OceanProtect Backup Storage is post-deduplication. a. True. b. False.

44. Veeam VM instant recovery can recover VMs instantly with both read and write enabled. a. True. b. False.

45. Poc is the prerequisite and basis for winning NAs and is one of the important ways to obtain technical recognition from customers. a. True. b. False.

46. During service level configuration, DME Support the setting of performance thresholds and capacitiy thresholds. If the Resource usage reaches the corresponding thresholds, alarmas Will be generated. a. True. b. False.

47. Unstructured services of OceanStor Pacific series use NVDIMM architecture to replace BBU + DRAM architecture to achive higher banwidth. a. True. b. False.

48. For the OceanStor Dorado NAS, when receiving client data, the DTOE mode implements one less memory copying tan the TCP mode does, thereby delivering higher performance. a. True. b. False.

49. The SmartMatrix architecture of OceanStore Dorado can be greatly highlighted when a Controller becomes faulty in single-link scenarios. a. True. b. False.

50. Data Encryption feature of OceanStor Pacific can Support estándar protocols included NFS/SMB/S3/HDFS. a. True. b. False.

51. According to the best practices, NAS is the best choice for OceanProtect Backup Storage when working with Veeam. a. True. b. False.

52. Huawei OceanStor Dorado Support risky disk prediction and service tren prediction. a. True. b. False.

53. The DPC client work with MPI-IO to Support concurrent processing of a single file among multiple storage nodes and implement cross-node load Balancing. a. True. b. False.

54. OceanStor Pacific 9950 is high-density storage Device for high performance workloads. a. True. b. False.

55. OceanProtect Backup Storage adopts the Active-Active Distributed System architecture. a. True. b. False.

56. The Distributed file System of OceanStor Dorado NAS is Distributed to multiple controllers based on directories to improve the perfomance of a single file System. a. True. b. False.

57. The OCeanStor Dorado supports both scale-out and scale-up. a. True. b. False.

58. Which of the following statements about improving perfomance of OceanStor pacific is incorrect?. a. Small I/Os can be written to the cache to complete the write request. b. Small I/Os are Aggregation in the cache. c. Small I/Os are encoded in EC mode an then flushed to disks. d. Random writes are changed to sequential writes.

59. Which of the following statements about intelligent recycle bin is correct by OceanStor Pacific series?. a. The recycle bin function is enabled by default, and can not be disable. b. A file that has been retained in the recycle bin for a period longer tan the configured period need be manually deleted and data is permanently destroyed. c. Only file (HDFS, NFS and SMB) Support deletion Operations. d. When receiving an explicit Command for deleting a file, the System only hides the file but does not move the data.

60. Which statement about the active-active architecture of the OceanStor Dorado is incorrect?. a. LUNs are not owned by any Controller. b. The logical host paths are active-active. c. Loads are balanced among controllers. d. ALUA must be configured when the operating system´s native multipathing software is used.

61. What 3DC topology is not supported by OceanStor Dorado NAS?. a. Hypermetro + Async. b. Hypermetro + Sync. c. Async + Async. d. Sync + Async.

62. What is the advantages of ROW-bases full-stripe write?. a. Eliminate the write penalty. b. Reduce the write penalty. c. Maintain the write penalty. d. Increase the write penalty.

63. Assume that a customer needs to generate a large number of data copies based on the scheduling policy for the purpose of recovering data when production data is deleted by mistake. In this case, which feature must be configured for the OceanStor Dorado?. a. HyperSnap. b. HyperCPD. c. HyperClone. d. HyperReplication.

64. At site X, the data traffic of a LUN used for authentication increases abruptly during peak hours. Which of the following technologies of OceanStor Dorado can ensure the smooth running of services on the LUN?. a. SmartQoS lower limit guarantee. b. SmarqOs upper limit control. c. SmartQoS burst quota. d. Wear leveling.

65. Which of the following HSSD realiability technologies can prevent data los on disks when a storage System is powered off unexpectedly?. a. RAID. b. Bad block management. c. Power failure protection. d. Wear leveling.

66. Which of the following is not the responsibility of the DPC client?. a. I/O addressing. b. Storage space allocating. c. Load Balancing. d. EC Operations.

67. What is the biggest difference between DME IQ and DME Storage in terms of the key features they provide?. a. DME IQ can provide capacity prediction, but DME Storage cannot. b. DME IQ can provide performance prediction, but DME Storage does not. c. DME IQ Support E2E topology, but DME storage does not. d. DME IQ does not provide the storage configuration function, DME Storage can provide storage manual configuration an SLA-based Automatic provisioning.

68. Which of the following compression algorithm is used by the OceanProtect Backup Storage?. a. LZ4. b. GZ fast. c. GZ. d. HZBC.

69. Which is the protocol used for Networking between OceanStor Dorado Smart disk enclosures and Controller enclosures?. a. SAS. b. FC. c. 100GE RoCE. d. PCIe.

70. Which of the following are correct for OceanProtect Backup Storage?. a. The System backup bandwidth of OceanProtect X9000 is 3 times that of the industry. b. The System restore badwidth of the OceanProtect X9000 is 5 times that of the industry. c. The máximum System backup bandwidth of OceanProtect X9000 is 155 TB/hour. d. The máximum System restore bandwidth of OceanProtect X9000 is 172TB/hour.

71. Which technologies does OceanStor Dorado Support to increase data reduction ratio?. a. SmartDedupe. b. SmartMigration. c. SmartMulti-Tenant. d. SmartCompression.

72. What policy can OceanStor Pacific Multi-Tenant feature set to each tenant?. a. Capacity quota. b. Performance QoS. c. Storage pool. d. Directory.

73. Which functions are provided by OceanStor Dorado intelligent data reduction?. a. Inline Deduplication. b. Inline Compression. c. Post-process Deduplication. d. Data compaction.

74. Which of the following scenarios are suitable for DME IQ?. a. There are no frequent multiple devices configuration requirements (we can use DeviceManager for storage configuration), mainly for Device Monitoring and alarm handling. b. Devices are not centrally localed in one or two data centers. They are scattered and require remote Monitoring. c. DME IQ can be used as a tool to record and remind maintenance Information, helping partners identify devices that need to be replaced after warranty expiration. d. Integrate into customers xisting management platforms to implement SLA-base Automatic storage Resource provisioning.

75. Compare with the previous generation OceanStor V5, which features Huawei New-Gen OceanStor Hybrid Flash Storage get great performance improvement?. a. ROW optimizated architecture. b. Converged SSD acceleration-SmartAcceleration. c. SmarTier. d. SmartQoS.

76. How to improve CPU Processing Efficiency in OceanProtect Backup Storage?. a. Controller CPU adopts the vNode load Balancing algorithm. b. Distribute each I/O request to all CPU cores. c. Resource Distribution by CPU core Group. d. Resource isolation by CPU core.

77. Which statement is true about OceanStor Dorado?. a. OceanStor Dorado can delivers 21 million IOPS 0.05 ms latency, and 30% higher NAS performance than the industry benchmark. b. OceanStar Dorado can tolerate the failure of 7 out of 8 controllers and provides the industry's only active-active solution for SAN and NAS. c. OceanStor Dorado supports is designed with SmartMatris fully interconnected architecture for always-on applications. d. OceanStor Dorado supports intelligent O&M and The edge cloud collaboration provides a smarter, simpler way to manage storage resources.

78. Which Controller node options are provide by the OceanProtect x8000?. a. Single-node (dual controllers) mode. b. Dual-node (four controllers) mode. c. Three-node (six controllers) mode. d. Four-node (eight controllers) mode.

79. OceanStor Dorado HyperMetro uses Fast Write to accelerates writes across sites over FC links, which commands are combined into one?. a. Write. b. Transfer Ready. c. Data Transfer. d. Status Good.

80. Which of the following reliability dimensions are supported by OceanStor Pacific series?. a. DC-level reliability. b. System-level realiability. c. Node-level realiability. d. I/O-level reliability.

81. OceanStor Dorado Support NDMP for filesystem backup over SAN, which SAN protocols are supported?. a. InfiniBand. b. FC. c. Iscsi. d. HTTP.

82. Which of following models can be the DR storage when deploying Active-Passive solution with HyperReplication and the production DC in OceanStor Dorado 18000?. a. OceanStor 18000. b. OceanStor 5000. c. OceanStor 18510. d. OceanStor 5510.

83. Which HPDA scenearios does Huawei suggest to use OceanStor Pacific?. a. Oil & Gas exploration. b. Autonomous driving. c. Life Science. d. Supercomuting centers.

84. Which of the following services can be deployed in the same storage pool of OceanStor Pacific?. a. File. b. HDFS. c. S3. d. Block.

85. OceanStor Dorado HyperReplication must assign paired LUNs to specific controllers for both primary and secondary array. a. True. b. False.

86. The Deduplication data consistency policy used by OceanStor Dorado is strong hash. a. True. b. False.

87. OceanProtect Backup Storage supports a máximum of 32 controllers. a. True. b. False.

88. OceanProtect Backup Storage HyperReplication could be awared and managed by Veeam. a. True. b. False.

89. OceanProtect X6000 support single Controller mode. a. True. b. False.

90. The SmartMatrix architecture of OceanStor Dorado can be greatly higlighted when a Controller becomes faulty in single-link scenarios. a. True. b. False.

91. The load Balancing principle of DPC (Distributed Parallel Client) of OceanStor Pacific is the same as that of standard NAS. a. True. b. False.

92. The DPC client Works with MPI-IO to Support concurrent processing of a single file among multiple storage nodes and implement cross-node load Balancing. a. True. b. False.

93. OceanStor Pacific 9950 is a high-density SSD storage Device for high performance workloads. a. True. b. False.

94. The Snapshot and clone technology of OceanStor Dorado can generate multiple copies of original data across multiple storage System. a. True. b. False.

95. Script orchestration automation of DME Storage is base on Ansible playbook. Users can customize automation scripts based on service scenarios. a. True. b. False.

96. The entire OceanStor Dorado series supports front-end and back-end interconecct I/O modules. a. True. b. False.

97. OceanStor Pacific 9950 can Support up to 120 half palm SSDs. a. True. b. False.

98. As next generation Unified Storage, OceanStor Dorado can Support SAS SSD, NVMe SSD and HDD. a. True. b. False.

99. A technology evenly distributes worloads to each SSD disk, thereby preventing continuos hot data Access from causing a premature failure of some SSD disks. What is the name of this technology?. a. Wear leveling. b. Anti-wear leveling. c. Hot cache. d. Read cache.

100. OceanStor Dorado NAS Supports Access-based enumeration which displays only the files and folders that a user has permissions to Access. Which protocol is this feature available in?. a. NFS. b. SMB. c. HDFS. d. VMFS.

101. What is the aggregate read badwidth of eight nodes in an OceanStor Pacific 9950 device?. a. 96GB. b. 144GB. c. 160 GB. d. 200GB.

102. What is the máximum System restore bandwidth os the OceanProtect X9000?. a. 22 TB/hour. b. 57 TB/hour. c. 155 TB/hour. d. 172 TB/hour.

103. Which one is not to enhance the cluster management efficiently of OceanStor Pacific?. a. DeviceManager. b. DME Storage. c. DME IQ. d. SmartTier.

104. Which one is not the advantage os OceanStor Pacific in HPDA scenario?. a. High-density hardware. b. Seamless multi-protocol interworking. c. Smart Card. d. Hybrid-workloads Oriented.

105. Which of following statements is NOT TRUE about Veeam cloud tiering?. a. Policies are configured and managed on the backup software, and the tiering is controllable and manageable. b. Only public cloud storage could be supported as level 2 backup Device. c. The backup software can directly recover long-term retained copies. d. Backup server resources are occupied.

106. Which statements about the asynchronous replication feature of OceanStor Dorado NAS are correct?. a. Support for file-system-level replication. b. Asynchronous replication does not Support tenant-based configuration. c. Support for HyperMetro. d. The Snapshot can be created on the RPO policy of asynchronous replication.

107. Which are the key features of the OceanStor Dorado NAS?. a. SmartMigration. b. HyperLock. c. SmartQuota. d. SmartVirtualization.

108. Which scenarios can be tolerated by OceanStor Dorado high-end storage System?. a. 3 controllers out of 8 fail at the same time. b. Any 2 controllers out of 8 fail at the same time. c. There are 8 controllers in total, one controllers fails abnormally, and the 2nd fails 5 minutes later, then another fails 2 minutes later. d. There are 8 controllers in total, one Controller fails 5 minutes later, 2 other controllers fail at the same time.

109. Which of the following key hardware designs are used for high density in OceanStor Pacific 9550?. a. Bi-directional pulling&Holding rail-free. b. Retraction design. c. Dual air channels. d. Counter-rotating pressurized fans.

110. Which Deduplication and compression technologies can be supported by OceanProtect Backup Storage?. a. Backup data preprocessing-separating data headers from changed data. b. Multi-layer inline variable-length dedupe. c. Feature-base compression. d. Byte-Level Compaction.

111. Which of following technologies are the features of the Deduplication algorithm used by the OceanProtect Backup Storage?. a. Similar Deduplication. b. Variable-length Deduplication. c. Inline Deduplication. d. Multi-layer Deduplication.

112. Which functions are provide by OceanStor Dorado intelligent data reduction?. a. Inline Deduplication. b. Inline compression. c. Post-process Deduplication. d. Data compaction.

113. Reliability is an advantage os OceanStor Dorado, especially when a Controller is faulty. Which of the following measures can be used to better company?. a. Under the same conditions, remove the Controller to simulate a Controller failure. b. Use the same observation dimensión. c. Use the same I/O model with mixed read and writes. d. Observation on the host side. The performance data sampling Interval on the storage side is different. Therefore, the result cannot be accuratley display.

114. Which key technologies can be provide by OceanProtect in anti-ransomware solution with backup software?. a. Data encryptions, including software-based storage Encryption, replication Encryption and SMB Encryption. b. File System WORM. c. Air gap. d. Detection and analysis.

115. Compared with the previous generation OceanStor V5 which features help Huawei New-Gen OceanStor Hybrid Flash Storage get great performance. a. ROW optimizated architecture. b. Converged SSD acceleration-SmartAcceleration. c. SmartTier. d. SmartQoS.

116. Which of the following types of storage media are supported by the OceanProtect Backup Storage¿. a. NVMe SSD. b. SAS SSD. c. SAS HDD. d. NL SAS HDD.

117. Which of following failures happened, the service will be not interupted for high-end flash storage?. a. Two controllers fail at the same time (more than two controllers). b. One engine fails (multiple engines). c. 2 disks fall in a storage pool. d. Only one controller is available.

118. Which HPDA scenarios does Huawei suggest to use OceanStor Pacific?. a. Oil & Gas exploration. b. Autonomous driving. c. Life Science. d. Supercomuting centers.

119. Each LUN created on the OceanStor Dorado is assigned an owning Controller. a. True. b. False.

120. In the HyperMetro technology, it is recommended to deploy quorum server in the third datacenter with available networking to both datacenters. a. True. b. False.

121. If the MTTR(the mean time to repair) is fixed, the larger MTBF(the mean time between failures) , the higher the system availabil. a. True. b. False.

122. It is mandatory to configure SSDs in the Huawei New-Gen OceanStor Hybrid Flash Storage for performance acceleration. a. True. b. False.

123. OceanStor Pacific supports data integrity check functions such as related to DIF and background data consistency check. a. True. b. False.

124. OceanProtect X6000 supports single controller mode. a. True. b. False.

125. Data Encryption feature of OceanStor Pacific can support standard protocols included NFS/SMB/S3/HDFS. a. True. b. False.

126. OceanStor Pacific supports unified metadata management for multiple protocols(iSCSI/NFS/SMB/HDFS/S3) avoid semantics loss. a. True. b. False.

127. OceanStor Dorado HyperVault is a built-in backup feature, but only scheduled and periodic backup are supported, manual backup is not supported. a. True. b. False.

128. The HyperCDP snapshots of OceanStor Dorado can be directly mapped to hosts. a. True. b. False.

129. OceanStor Pacific supports interoperability among file, object, and HDFS protocols. a. True. b. False.

130. The recommended value-added storage features can be adjusted based on customers' industry background and application scenarios. The snapshot and clone features are monthly settlement, and annual settlement services in the financial service system because these services need to use the storage feature to quickly obtain the latest data in. a. True. b. False.

131. OceanProtect Backup Storage uses feature-based compression algorithm, which is a Huawei-patented HZBC algorithm. The compression ratio is more than 50% higher than that. a. True. b. False.

132. The system availability is 99.999%, indicating that the annual interruption time of the system is about 5 minutes. a. True. b. False.

133. A technology evenly distributes workloads to each SSD disks, thereby preventing continuous hot data access from causing a premature failure of some SSD disks. What is the name of the technolgy?. a. Wear leveling. b. Anti-wear leveling. c. Hot cache. d. Read Cache.

135. Which is the right way to configure WORM policy (write once, read many) to prevent data tempering, when OceanProtect Backup Storage is working with Commvault?. a. Configure at Commvault Ida. b. Configure at Commvault CommServe. c. Configure at OceanProtect. d. Configure at Commvault CommServe, but invoke OceanProtect WORM automatically.

136. OceanStor Dorado HyperMetro all-IP network deployment choose which two networks for host and replication connection?. iSCSI + TCP. iSCSI + DTOE. FC + FC. NoF + RDMA.

137. What is the máximum System backup bandwidth os the OceanProtect X9000?. a. 19 TB/hour. b. 55 TB/hour. c. 155 TB/hour. d. 172 TB/hour.

138. For OcenStor Dorado, which technology can achieve RPO = 0?. a. Snapshots. b. Asynchronous replication (HyperReplication). c. Active-Active (HyperMetro). d. Clone.

139. How many controllers does the OceanProtect X9000 support at most?. a. 1. b. 2. c. 4. d. 8.

140. When only one LUN is configured on the OceanStor Dorado, how many controllers can be used for I/O processing?. 24. 25. 30. 36.

142. Which one is not the function of OceanStor Pacific Enterprise-level WORM feature?. a. Customized WORM clock. b. Read-only permisssion. c. Administrador permission. d. User permission.

143. Which of the following is not a performance Monitoring capability of DME Storage?. a. Storage SAN aasociation analysis. b. Viewing performance data of multiple objects at the same time. c. Association between performance Monitoring and alarm query. d. VM performance Monitoring.

144. Which statements about the HyperMetro (active-active) feature of the OceanStor Dorado are correct?. a. Gateway-free. b. Active-active. c. Single Network between storage arrays. d. Active-active for both SAN and NAS.

145. Which can be supported in HyperMetro multiple Networking?. a. FC. b. IP. c. Infiniband. d. SAS.

146. Which are the topology visualization capabilities of DME Storage?. a. Displays the E2E link realationship between LUNs and hosts. b. Supports association with performance Monitoring and analysis. c. Supports association with alarm Information. d. Supports association with Application allocation.

147. Which technologies are used by OceanStor Dorado to improve performance?. a. CPU core grouping algorithm that used dedicated cores for I/O reads and writes. b. Full-stripe write. c. I/O priority scheduling policy that assigns different priorities for different types of I/Os. d. End-to-end NVMe.

148. Some customers do not fully agree with the test tool results and require that the test be performed in the production environment. How to manage the POC in such situations?. a. Do not connect POC devices to production services. If the customer insists on connecting POC devices to production services, obtain the written disclaimer for production network access tests from the customer, continuously track the customer test progress, synchronize risks and issues in a timely manner, and develop corresponding measures. b. Synchronize issues and requirements in the customer test, track and resolve the issues. c. Track and cooperate with the customer to reclaim POC devices after the POC test is complete. d. The test personnel are familiar with the production environment and can proactively log in to the production switch to complete network configuration for the customer.

149. Which of the following features combination has the similar function of OceanStor Dorado HyperVault?. a. HyperClone. b. HyperSnap. c. HyperCPD. d. HyperReplication.

150. Which models are included in the OceanProtect Backup Storage?. a. X6000. b. X8000. c. X9000. d. X18000.

151. Which are the advantages of adaptative locality data rearrangement feature in OceanProtect Backup Storage?. a. Adjust data layout on disks to reduce random read Operations during data restoration. b. Optimize HDD-based recovery performance. c. Make actual storage location of data on disks in the same as the logical sequence.

152. Which are the functions provided based on OceanStor Dorado disk-controller collaboration?. a. Global GC. b. End-to-end read/write priority. c. Reconstruction offload. d. Load Balancing offload.

153. Which of the following high-density product models are supported by the unstructured services of OceanStor Pacific series?. a. 9950. b. 9550. c. 9640. d. 9520.

154. Which of the following are included in the end-to-end Balancing of OceanStor Pacific series?. a. Load Balancing at the Access layer. b. Load Balancing at the semantic layer. c. Load Balancing at the persistence layer. d. Load Balancing on the management and control plane.

155. Intelligent adaptative Deduplication and compresssion of the Dorado greatly reduce the amount of data while maintaining latency of less tan 1 ms. a. True. b. False.

156. In a OceanStor Dorado high-end storage System, the multiple copies of the write cache (Continuous Mirroring) can be evenly Distributed to all controllers (more than two controlleres sceanario). a. True. b. False.

157. OceanStor Dorado HyperMetro for NAS lets client Access the array which the directory is created locally, by this mean, workload can be balanced, and cross-site Access can be reduced. a. True. b. False.

158. OceanProtect Backup Storage uses 4-Step Advanced Dedupe and Compression for Optimal Data Reduction. a. True. b. False.

159. OceanStor Dorado HyperLock is WORM feature that allows data to be read-only once being written. a. True. b. False.

160. OceanStor Pacific can provides unstructured data service through Iscsi/NFS/SMB/HDFS/S3 protocols. a. True. b. False.

161. In the HyperMetro technology, it is recommended to adopt Preferred storage array mode in long distance storage cluster deployment. a. True. b. False.

162. DME Storage supports QoS policy definition for service levels. The IOPS and bandwidth are set based on the capacity density, and only the QoS upper limit control is supported. a. True. b. False.

163. OceanProtect Backup Storage support all-flash mode and HDD mode. a. True. b. False.

164. In the HyperMetro solution, the multipath software is recommended to use Huawei UltraPath. a. True. b. False.

165. In OceanStor Pacific, IP address could be dynamically allocated to each node. If a node is faulty, IP addres can be automatically taken over by multiple nodes to ensure reliability and load balancing. a. True. b. False.

166. Which is the scale-out networking protocol adopted by the OceanStor Dorado?. a. FC. b. IB. c. RoCE. d. PCIe.

167. If one SSD in storage system is running heavy workload, and its life is much shorter than others, which of the following technology can avoid this?. a. Garbage collection. b. Wear leveling. c. Bad block isolation. d. Inner disk RAID.

168. For centralized backup system architecture design, 3-2-1 rule should be recommended, what is the details of 3-2-1?. a. 3 types of media, 2 copies, 1 offsite. b. 3 copies, 2 sites, 1 type of media. c. 3 copies, 2 types of media, 1 offsite. d. 3 sites, 2 copies, 1 type of media.

169. Which technology is used to protect end-to-end data integrity?. a. DIX+T10. b. Encryption. c. SHA. d. ECC.

170. When customer want to build some IT system such as email system, which has a clear hot and cold data layer, which of the following product is recommended?. a. OceanStor Dorado. b. New-Gen OceanStor Hybrid Flash Storage. c. OceanStor Pacific with SSD. d. OceanProtect.

171. Which of the following statements is correct by OceanStor Pacific series?. a. OceanStor Pacific series applies only to high-bandwidth scenarios. b. OceanStor Pacific series applies only to high-IOPS scenarios. c. OceanStor Pacific series applies only to scenarios with mass small files. d. OceanStor Pacific series applies to hybrid load scenarios.

172. Which one always have the highest priority to ensure the data read and write I/O performance by OceanStor Pacific series?. a. Cache batch write. b. Data read and write. c. Advanced features. d. Disk Rebuilding.

173. Which are the advantages of SmartAcceleration technology in Huawei New-Gen OceanStor Hybrid Flash Storage?. a. No need to set fixed SSD for dedicated cache or tier, simplify the configuration. b. Automatic adjustment of cache and tier, more cost-effective. c. Higher accuracy of hot and cold data sensing, higher performance. d. No need SAS HDD for the second performance tier.

174. What are the key characteristics of OceanStor Dorado HyperMetro?. a. Active-active cluster. b. Supports SAN and NAS. c. RPO = O. RTO = 0. d. Dual arbitrition.

175. Which key technologies can be provided by OceanProtect in anti-ransomware solution with backup software?. a. Data encryptions, including software-based storage encryption, replication encryption and 5MB encryption. b. File system WORM. c. Air gap. d. Detection and analysis.

176. Which of the following QoS dimensions are supported by OceanStor Pacific series?. a. Namespace. b. Tenant. c. Client. d. Volume.

177. Which of the following behaviors will improve the customer's perception of the professionalism of the vendor's test personnel?. a. The equipment is installed according to the standard and the cabling is neat. b. The test report is detailed and provides sufficient screenshots and description. c. The test operations are smooth and do not need to be reworked. d. All problems found during the test are recorded in detail and tracked until they are resolved.

178. What of following features can be supported by OceanStor Dorado high-end series?. a. Load balancing among all controllers. b. I/O interruption shorter than 1 second in the event of controller failover. c. Global sharing of cache and pool resources. d. Smart disk enclosures and NVMe SSDs.

179. Which of the following devices can be managed through the southbound APIs of DME Storage?. a. Huawei storage. b. Fibre Channel switch. c. Third-party storage. d. Third-party cloud management platform.

180. OceanStor Dorado Hyperclone supports clones to be accessed (read and write) once they are created. a. True. b. False.

181. OceanStor Pacific object storage solution focus on content resource pool and backup & archiving scenario. a. True. b. False.

182. Huawei OceanStor Dorado support risky disk prediction and service trend prediction. a. True. b. False.

183. DME Storage supports QoS policy definition for service levels. The IOPS and bandwidth are set based on the capacity density, and only the QoS upper control is supported. a. True. b. False.

184. Compared with other high-end flash storage (more than one engine), Which features help high-end storage of OceanStor Dorado support higher reliability?. a. Dual controller failure without service interruption. b. One engine failure without interruption. c. Dual disk failure tolerance. d. Power failure protection.

185. Which statements about dynamic reconstruction are true?. a. The data redundancy will not be decreased. b. The number of RAID members decreases. c. The number of RAID members remains unchanged. d. The number of RAID members increases.

186. Which of the following interface cards can be supported by OceanProtect Backup Storage?. a. 10GE. b. 25GE. c. 40GE. d. 100GE.

187. Which can be improved by faswrite in the HyperMetro technology?. a. Reduce the interaction between 2 datacenters, from 2 RTT to 1 RTT. b. Reduce the data transfer between 2 datacenters. c. Improve performance by 30%. d. It works greatly with distance exceed 10 km.

188. Which following subhealth intelligent detection functions can OceanStor Pacific provide?. a. Intelligent detection. b. Intelligent diagnosis. c. Path-switching retry. d. Isolation and warning.

189. Which of the following capabilities are the northbound ecosystem capabilities of DME Storage?. a. Provides northbound RESTful interfaces to connect to platforms such as CMP. b. Provides SNMP interfaces to connect to the centralized alarm management platform. c. Provides vCenter and CSI plug-ins to integrate into the ecosystem. d. Provides SMI-S interfaces to connect to third-party NMSs.

190. Which of the following conditions must be met to accurately test the overall performance and actual capability of storage system?. a. The capacity of the test LUN must be greater than the cache capacity. b. The test LUN needs to be overwritten once. c. After the LUN is created, perform the test immediately. d. Construct a high cache hit ratio.

191. Which types of connection does OceanStor Dorado HyperReplication for NAS supports multiple DC interconnection?. a. Serial interconnection. b. Parallel interconnection. c. One-to-many interconnection. d. Sync replication interconnection.

192. What are the functions of Veeam backup proxy?. a. Retrieval of VM data from the production storage. b. Compression, replication, and encryption. c. Store backup files and supports various storage systems. d. Data transmission to the backup repository.

193. For OceanStor Dorado NAS, the difference between HyperSnap and HyperCDP is scheduled policy, and HyperClone is used to create writable copy and cross-tenant authentication. a. True. b. False.

194. In object service of OceanStor Pacific series, a HyperGeoMetro policy is flexibly configured at the Object level. a. True. b. False.

195. OceanStor Pacific uses NVDIMMs as cache, which can prevent data loss during power failure. a. True. b. False.

196. OceanStor Pacifif SmartTier feature can support two tiers of storage resource pools (Hot pool, Warm pool/Cold pool). a. True. b. False.

197. The Huawei New-Gen OceanStor Hybrid Flash Storage supports separated SSD tier an SSD cache features. a. True. b. False.

198. OceanStor Dorado HyperReplication for NAS only supports async replication, for sync replication, which feature should be used?. a. SmartMigration. b. HyperVault. c. HyperMetro. d. HyperCDP.

199. Which distance is exceeded, extra transmission device are required to ensure interconnection between 2 datacenters, when deploying HyperMetro solution with FC networking?. a. 25 km. b. 50 km. c. 100 km. d. 300 km.

200. Which types of metadata is not supported by OceanStor Pacific unified global metadata indexing feature?. a. Object. b. File. c. Block. d. HDFS.

201. Which of the following is not an automation capability of DME Storage?. a. Automatic allocation of storage resources. b. Automatic allocation of Fibre Channel switches. c. Mapping storage resources to hosts. d. Scanning configuration on host such as file system formatting.

202. Which one is not the advantage of OceanStor Pacific in HPDA scenario?. a. High-density hardware. b. Seamless multi-protocol interworking. c. Smart Card. d. Hybrid-workloads Oriented.

203. What is the maximum reduction ratio of the OceanProtect Backup Storage?. a. 25:1. b. 40:1. c. 50:1. d. 72:1.

204. Which scenarios can be supported by OceanStor for SAN to create flexible local copy?. a. Create clones from read-only snapshots. b. Create clones from HyperCPD directly. c. Roll back snakpshots as required. d. Mixed cascading of snapshots and clones.

205. Which are storage protocols used for host connection by OceanStor Dorado in SAN?. a. FC. b. Iscs. c. NvmE over Fabrics. d. SAS.

206. When a host reads and writes a test LUN on the OceanStor Dorado, the loads are balanced among all storage controllers. a. True. b. False.

207. In a OceanStor Dorado high-end storage system, the multiple copies of the write cache (Continuos Mirroring) can be evenly distributed to all controllers (more than two controllers sceanario). a. True. b. False.

208. OceanStor Pacific supports unified metadata management for multiple protocols (Iscsi/NFS/SMB/HDFS/S3) avoid semantics loss. a. True. b. False.

209. Users want to focus on the performance of LUNs that serve critical applications. In this case, the performance check capability of DME Storage can be used. Alarms or events are generated when the LUN performance threshold exceeds users expectations. a. True. b. False.

210. Which kind of data can be backup to object storage or public cloud by OceanStor Dorado witch CloudBackup feature?. a. SAN. b. Object. c. NAS. d. Block.

211. Which functions are controlled by SmartQoS of OceanStor Dorado?. a. Priority. b. Maximum bandwidth. c. Maximum IOPS. d. Latency control.

212. In the SmartAcceleration technology, which are the advantages of ROW mode of Huawei New-Gen OceanStor Hybrid Flash Storage?. a. Reduce the write penalty greatly comparing with COW mode. b. Small I/Os are aggregated into large I/Os for sequential writes, eliminating HDD for random I/Os. c. Reduce the data writes to the storage system.

213. Audit logs can be recorded for multi-protocol (NSF/SMB/S3/HDFS) operations on OceanStor Pacific. a. True. b. False.

214. Which feature of Veeam is recommended when it´s working with OceanProtect Backup Storage?. a. Remote replication. b. Dedupe. c. Instant recovery. d. Compression.

215. OceanStor Dorado secure sanpshot is based on HyperCPD. How many yerars could its maximum retention period reach?. a. 10 years. b. 20 years. c. 30 years. d. 40 years.

216. By adaptive locality data rearrangement, the performance of HDD-base OceanProtect Backup Storage is improved over peer products. What is the improvement?. a. 10%. b. 20%. c. 30%. d. 40%.

217. Which type quota does OceanStor Dorado SmartQuota support?. a. Directory quota. b. User quota. c. File quota. d. User group quota.

218. How many types of POC are the based on the test site?. a. On-site test. b. Remote test (by remote connection from customer sites to Huawei labs). b. Remote test (by remote connection from customer sites to Huawei labs). d. Showcase test.

219. Which of the following domain controllers can be used in multi-protocol convergence and interworking scenarios for OceanStor Pacific?. a. AD. b. LDAP. c. NIS. d. Native.

220. OceanStor Dorado can create a snapshot from an existing snapshot for both SAN and NAS. a. True. b. False.

221. DME Storage allows users to customize service levels. Different service levels represent different sets of performance and data protection capabilities. Service levels can control quotas based on different tenants. a. True. b. False.

222. OceanProtect Backup Storage can prevent silent data corruption by automatic and periodic background data consistency scanning, which following are include?. a. Disk verification. b. Stripe verification. c. Metadata and data verification.

223. Which statement is NOT TRUE about OceanProtect Backup Storage?. a. The controller node of OceanProtect X6000 can houses 25 SAS SSDs. b. The controller node of OceanProtect X8000 can houses 25 SAS SSDs. c. The hdd enclosure of OceanProtect Backup Storage can houses 24 NL-SAS disks. d. The controller node of X9000 can houses 36 SAS SSDs.

224. For OceanStor Dorado, how the RAID 2.0 can support fast rebuilding?. a. No dedicated spare disk, but spare distributed instead. b. Add more spare disks. c. Reduce the data to be rebuilt.

225. Which of the following key designs are used for industry-leading performance in OceanStor Dorado?. a. FlashLink Intelligent Algorithms. b. E2E NVMe Architecture. c. Globally Shared Distributed File System. d. All-Flash Native Architecture.

226. Which types of antivirus scanning policies are supported by OceanStor Dorado?. a. On-access scanning. b. On-duty scanning. c. On-site scanning. d. On-demand scanning.

227. Which are the correct description for iNIC to offload TCP/IP protocol in OceanProtect Backup Storage?. a. Each TCP connection has an independent hardware queue to avoid the lock overhead. b. The hardware queue is operated in user mode to avoid the context switching overhead. c. The polling mode reduces the latency. d. The NIC offloads the TCP/IP protocol. The system only processes the actual TCP data flow.

228. Which of the following key designs are used for solid stability in OceanStor Dorado?. a. Global Wear and Anti-Wear Leveling to enable Ever Solid Disk. b. SmartMatrix design to enable Ever Solid Architecture. c. RAID-TP feature to support Ever Solid System with fast data reconstruction. d. HyperMetro Active-Active Solution for SAN and NAS to enable Ever Solid Solution.

229. Which of the following enterprise features and shared by multiple protocols in OceanStor Pacific?. a. QoS. b. Snapshot. c. Authentication. d. Metadata indexing.

230. The OceanStor Dorado uses the SAN&NAS converged architecture. LUNs and file systems can be directly created in the same storage pool. a. True. b. False.

231. The OceanStor tolerates simultaneous failures of a maximum of four nodes or simultaneous failures of a maximum of four disks. a. True. b. False.

232. OceanStor Pacific support Enterprise-Level WORM feature. a. True. b. False.

233. DPC (Distributed Parallel Client) of OceanStor Pacific is compatible with standard POSIX and MPI-IO semantics and provides high-performance an parallel storage capabilities for HPC scenarios. a. True. b. False.

234. In order to enhancing data anagement efficiently, OceanStor Pacific uses unified global metadata indexing feature. a. True. b. False.