Each LUN on Dorado V6 is owned by a specific controller.
- A . True
- B . False
SmartQoS allows preferential response to high-priority services. (True or False?)
- A . True
- B . False
To reduce costs, general-purpose servers are commonly used for object storage.
- A . True
- B . False
During the interaction between the server and SAN storage, the server encapsulates data in SCSI commands and implements data interaction through various network transmission protocols.
- A . True
- B . False
A storage pool is a logical combination of multiple storage tiers. A storage tier is a collection of storage media with the same performance in a storage pool.
- A . True
- B . False
In NAS cross-protocol access, the Windows permission is the same as the Linux permission.
- A . True
- B . False
Incremental backup requires the full backup and incremental backup of the last time to fully restore data.
Data reconstruction is slower than that of full backup, resulting in a long restoration period.
- A . True
- B . False
The recovery time objective (RTO) in a disaster recovery system refers to the time point to which the system and data must be recovered after a disaster occurs.
- A . True
- B . False
What is the maximum number of disks supported by the OceanStor 2200 V3?
- A . 300
- B . 500
- C . 204
- D . 276
What is the maximum redundancy ratio supported by high-ratio EC?
- A . 22+2
- B . 16+2
- C . 20+2
- D . 18+2
How many cabinets does Huawei OceanStor distributed storage allow to fail?
- A . 1
- B . 2
- C . 3
- D . 4
What is the specification of the OceanStor Dorado V6 high-end controller?
- A . 3 controllers per 3u
- B . 4 controllers per 4u
- C . 4 controllers per 3U
- D . 2 controllers per 2u
How many controllers can be used when only one LUN is configured on Dorado V6?
- A . 2
- B . 1
- C . All online controllers
- D . 4
SmartTier is a tiering feature of file systems.
What is the granularity of tiered migration?
- A . Single file
- B . File system
- C . File directory
Which protocol is used for interconnection between controllers of OceanStor V5 Kunpeng?
- A . PCl-e
- B . RDMA
Which of the following technologies is not used by Huawei OceanStor SmartQoS?
- A . I/O latency control
- B . I/O priority scheduling
- C . Cache partitioning
- D . I/O flow control
Assume that an application generates about 8,400 random small I/Os, the read/write ratio is 21, and RA..
5 is used. If no requested data is hit in the cache (COW mode), what is the IOPS required by the disk arr….
- A . 11200
- B . 22400
- C . 4800
- D . 16800
A bank needs to store a large number of images of checks every day due to increasing service volume. The existing storage system cannot meet the capacity requirements, so it now takes much longer to retrieve data.
Which is the most suitable storage system type?
- A . DAS
- B . SAN
- C . NAS
- D . Object Storage
Which between NVMe (PCle) and NVMe-oF (RoCE v2) features better scalability?
- A . NVMe-oF (RoCE v2)
- B . NVMe (PCle)
Which protocol is not a front-end protocol of SAN?
- A . InfiniBand
- B . NFS
- C . FCoE
- D . Fiber Channel
- E . iSCSI
Which statement about storage software is incorrect?
- A . LUN copy supports only full copy.
- B . Deduplication is a data reduction technology that deletes duplicate data to release system space.
- C . LUN copy copies the source LUN in a disk array to a target LUN.
- D . A snapshot is a fully usable copy of a specified data set.
Which ascending order of disaster recovery levels is correct?
- A . Module level -> system level -> solution level
- B . Solution level -> module level -> system level
- C . System level -> solution level -> module level
- D . Module level -> solution level -> system level
In the medical PACS system, X-ray, MRI, CT, and ultrasound tests generate a large number of image files every day. The file size ranges from 100 KB to 1 MB.
Which Huawei NAS product is recommended?
- A . FAS9000 series
- B . Oceanstor 9000
- C . OceanStor V5 NAS
- D . Unity series
Which indicator indicates the time required for system recovery after a disaster occurs?
- A . RTO
- B . RPO
- C . TCO
- D . RIO
What is the name of the multi-pathing software of Huawei storage?
- A . UltraPath
- B . SecurePath
- C . MPIO
- D . PowerPath
During Huawei OceanStor Kunpeng V5 and Dorado V6 controller expansion, which switch is used for controller inter-connection?
- A . IP switch
- B . PCle switch
- C . FC switch
- D . WAN switch
What advantages does the Huawei 2000 V3 offer to get the most out of fixed investments lower prices motivate customers to buy our products, and achieve project success?
- A . Among 32 GB products, the OceanStor 2200 V3 supports the leading gateway-free converged active-active solution for SAN/NAS.
- B . Among 32 and 64 GB products, the OceanStor 2200 and 2600 offer commercial advantages.
- C . Among 32 and 64 GB products, the OceanStor 2200 and 2600 offer the most-comprehensive functions.
- D . Among 64 GB products, the OceanStor 2600 V3 supports the leading gateway-free converged active-active solution for SAN/NAS.
4-in-1 means that 4 protocols are integrated into 1 OceanStor 100D storage system for unified management.
Which 4 protocols are involved?
- A . Block
- B . HDFS
- C . File
- D . Object
- E . NDMP
What are vertical industries that require OceanStor distributed storage?
- A . Enterprise
- B . Carrier
- C . Finance
- D . Security
- E . Government
What are the major differences between distributed storage and centralized storage?
- A . The distributed architecture facilitates capacity expansion and reduction and eliminates data migration.
- B . Distributed storage is applicable to cloud storage resource pools. content repository, archiving. and big data storage.
- C . Distributed storage features high elasticity and scalability accelerating service rollout.
- D . Distributed storage uses general-purpose servers as storage hardware for unified management
What are the front-end protocols of OceanStor Dorado V6?
- A . 16G FC
- B . 40G Ethernet
- C . 32G FC
- D . 100G Ethernet
Which features and technologies ensure Ever Solid Dorado V6?
- A . Cloud-level reliability: Gateway-free backup to the cloud
- B . System-level reliability: The SmartMatrix fully-connected active-active architecture tolerates seven out of eight controllers to fail and one out of two controller enclosures to fail without interrupting services.
- C . Data center-level reliability: HyperMetro-based gateway-free active-active and geo-redundant 3DC DR solutions
- D . Disk-level reliability: Self-developed SSDs use wear and anti-wear leveling technologies to control the mean time between failures (MTBF)of SSDs in a more predictable manner.
Which are the advantages of Dorado Vo smart disk enclosures?
- A . Improving storage performance
- B . Accelerating data reconstruction
- C . Reducing the impact of data reconstruction on services
- D . Reducing energy consumption
Which levels are included in the reliability delivered by Dorado V6?
- A . System level (for example, RAID TP supports simultaneous failure of three disks)
- B . Solution level (for example, the Ever New Device Service and gateway-free HyperMetro)
- C . Cloud level (for example, gateway-free backup to the cloud)
- D . Architecture level (for example, the SmartMatrix achitecture can tolerate the failure of seven out of eight controllers and one out of two controller enclosures)
- E . Disk level (for example, the Huawei-patented anti-wear leveling algorithm)
What enable Dorado V6 to deliver such high performance?
- A . Smart disk enclosure collaboration algorithm
- B . Five Huawei-developed chips
- C . Higher performance provided by HDDs
- D . End-to-end NVMe protocol
Which of the following are NOT true about OceanStor Dorado V6?
- A . Tolerance for failures of 7 out of 8 controllers for every model
- B . NVMe available for every model.
- C . Up to 20 million IOPS
- D . As low as 1 ms latency
Which features and technologies ensure Al-powered Dorado V6?
- A . The industry’s first storage Al chip can improve the cache hit ratio and implement data prefetch and pre-cache.
- B . FlashEver ensures zero data migration across three generations in 10 years.
- C . The Industry’s first storage Al chip that predicts and warns 0&M problems in advance
- D . Five chips are interconnected and collaborate with each other.
Which vendors provide NAS active-active solutions?
- A . Huawei
- B . HDS
- C . Dell
- D . EMC
- E . NetApp
- F . HPE
Which product models can tolerate the failure of three out of four controllers?
- A . OceanStor 6800 V5 Kunpeng
- B . OceanStor 5600 V5 Kunpeng
- C . OceanStor 18000 v5 Kunpeng
- D . OceanStor 5800 vs Kunpeng
Which of the following features are supported by SmartThin LUNs?
- A . SmartQuota
- B . SmartCompression
- C . SmartErase
- D . SmartDedupe
Which of the following Smart features are used in data migration?
- A . SmartMigration
- B . SmartQuota
- C . SmartVirtualization
- D . SmartPartition
Which statements about the copy protection (three copies) and EC technologies are correct?
- A . The EC technology provides high durability and high utilization, and is more cost-effective.
- B . The copy technology has higher computing requirements than the EC technology.
- C . Reconstruction is simpler for the copy technology than it is for the EC technology.
- D . The copy technology provides high durability, but the space utilization is low.
Which technologies can achieve disk data balancing by distributing data in IUNs to as many disks as possible?
- A . LUN virtualization based on physical disks
- B . EC technology
- C . Block-level virtualization based on logical disk blocks
- D . Traditional RAID group
A customer wants to purchase an object storage system for use of different departments. These departments are independent and one cannot access the data of another. The expenses are shared by the departments.
Which features would you recommend to the customer?
- A . Billing
- B . Replication
- C . Quota
- D . Multi-tenant
Which are advantages of SAN?
- A . High performance
- B . High reliability
- C . High resource utilization
- D . Excellent scalability
Which are SAN types classified by architecture?
- A . Distributed SAN
- B . FC SAN
- C . Centralized SAN
- D . IP SAN
Which are characteristics of centralized storage compared with distributed storage?
- A . Closed-source software system
- B . Support for scale-up and scale-out
- C . Support for multiple network connection protocols
- D . Dedicated hardware with higher reliability
- E . Lower latency
Which storage technologies provide redundancy protection?
- A . RAID 0
- B . RAID 5
- C . RAID 10
- D . RAID 1
Which is unstructured data?
- A . Employee ID and name information stored in the Oracle database
- B . Image and audio/video information
- C . Office document
- D . Text, image, XML, and HTML
Which statements about storage arrays are correct?
- A . A controller is the brain of a storage array and its main components are a processor and cache.1/0 operations and RAID management functions are implemented first With the development of technologies, data management functions such as snapshot, mirroring, and replication are provided.
- B . Intelligent cache prefetch identifies the access mode of a host predicts the data to be accessed, and reads the data from disks in advance to improve the cache hit ratio.
- C . Cache buffers host data in a storage system and improves the performance and reliability of the storage system.
- D . A storage array consists of multiple disks used as a single disk. It stores data in segments an different disks When data is stored, the related disks in the array work together to reduce the time required for storage and improve the space utilization.