Huawei HCSP-Presales-Storage (H19-338) Certification Sample Questions

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Huawei H19-338 Sample Questions:

01. A video-sharing startup stores user uploads that are written once, read many times and never edited. Its application already calls storage through HTTP REST requests, the collection is expected to grow from hundreds of terabytes to many petabytes, and each upload carries tags the application queries. A few extra milliseconds of latency per request is acceptable.

Which storage type best fits this workload?

a) Object storage over S3, with a flat namespace of objects and metadata that scales out

b) Block storage on LUNs, so the application servers can build their own file systems

c) File storage over NFS, so the uploads sit in a shared hierarchical directory tree

d) Direct-attached storage on each web server, because it has the lowest latency and the lowest cost per terabyte for write-once data

02. A managed service provider will host two customers' file shares and LUNs on one OceanStor Dorado. The contract says neither customer may see or authenticate into the other's services, each reaches the array on its own network, and customer A's nightly batch jobs must never degrade customer B's critical database.

Which two features or settings meet these terms? (Choose two.)

a) SmartQoS lower-limit guarantees on every LUN and file system of both customers, so all services are protected equally

b) SmartMulti-Tenant, placing each customer in its own vStore with separate services, authentication and LIFs

c) SmartQuota on each customer's root dtree, which isolates their networks and authentication domains

d) HyperMetro between the two customers' vStores, so a batch spike on one fails over to the other

e) SmartQoS upper limits on customer A's vStore, capping its IOPS and bandwidth during batch runs

03. An engineering design firm has Windows CAD workstations and a farm of Linux simulation nodes. Engineers save models from Windows, the Linux nodes read the same models and write results back, and the Windows users then open those results. Today the firm copies files every night between a Windows file server and a Linux NFS server, and stale copies have caused rework.

Which design removes the copy step?

a) Two file systems, one SMB and one NFS, kept in step by synchronous replication

b) An iSCSI LUN mapped to the Windows workstations and to every Linux node

c) One file system shared over both SMB and NFS

d) An S3 bucket for both groups, because object storage scales best for CAD files

04. A bank is building a new data center and wants one Ethernet network to carry both LAN and storage traffic, retiring its separate SAN. Its trading database must get end-to-end NVMe with the lowest latency and host CPU overhead the fabric can offer. The network team will deploy new switches that support DCB.

Which storage network protocol meets every stated goal?

a) FCoE, because it carries FC frames over converged lossless Ethernet

b) NVMe over FC on a new FC fabric beside the data network

c) iSCSI on the converged network, with jumbo frames for throughput

d) NVMe over RoCE

05. A customer's OceanStor Dorado V6 NAS file systems are near capacity, but most files have not been opened in a year. The customer has an S3-compatible object cloud and wants cold files moved there to free local space, while users keep browsing the same folders and opening any file without calling IT.

Which statements correctly describe SmartMobility in this design? (Choose two.)

a) It moves cold files, at file level, to the S3 target and keeps only metadata locally

b) It moves cold blocks of the file system between SCM and SSD inside the array, as SmartTier does

c) A user who opens a tiered file triggers its recall, so the file is read back without an administrator

d) A tiered file disappears from its folder until an administrator restores it from the cloud

e) It needs the object cloud to present a LUN, because tiering targets are block devices

06. A customer buys a New-Gen OceanStor Dorado populated with NVMe SSDs and connects its hosts through the existing FC SAN using standard FC (SCSI) host connectivity. The CIO assumes the database now runs NVMe end to end because the SSDs are NVMe. The customer would rather not build any new network.

Which assessment is accurate?

a) NVMe SSDs make every front-end protocol NVMe automatically, so the database already runs NVMe end to end

b) The host path still carries the SCSI command set, and end-to-end NVMe needs NVMe over FC, which the existing FC network can carry

c) End-to-end NVMe is possible only with NVMe over RoCE, so the FC SAN must be replaced by DCB Ethernet

d) FC cannot reach NVMe SSDs at all, so the hosts are really using a slower SAS path

07. A customer's OLTP database runs on a traditional array built from fixed RAID groups of HDDs. The workload is dominated by small random writes, and the DBA cares far more about write latency than about how much raw capacity is spent on protection. The budget already allows for extra disks.

Which RAID level best fits this requirement on a traditional array?

a) RAID 10, since mirrored writes need no parity read

b) RAID 5, because distributed parity removes the parity-disk bottleneck for random writes

c) RAID 6, because double parity spreads each write over more spindles and lowers latency

d) RAID 3, because a dedicated parity disk keeps parity work off the data disks

08. A distributor's business impact analysis sets two targets for its order system: lose no more than 30 minutes of orders, and have the service running again within 4 hours of a disaster. The proposal replicates the order LUNs to a second site with HyperReplication/A on a period well inside 30 minutes, and the rehearsed DR failover takes about 3 hours.

Which statements correctly evaluate the proposal against these targets? (Choose two.)

a) The 30-minute figure is the RTO, because it limits how long the order system may be unavailable

b) Asynchronous replication cannot meet any RPO target, so the 30-minute limit needs synchronous replication

c) Meeting the RPO also proves the RTO, because both are measured from the moment the disaster strikes

d) The replication period bounds data loss, so it is measured against the 30-minute RPO

e) The rehearsed 3-hour failover is what is measured against the 4-hour RTO, since it sets how long service is down

09. A customer's storage architect reviewing an OceanStor Dorado proposal asks why Huawei builds RAID inside each SSD when the array already protects data with RAID 2.0+ across disks. The architect suspects the two layers simply duplicate each other.

Which answer correctly separates what each layer defends against?

a) Intra-disk RAID mirrors each SSD onto a partner SSD, while RAID 2.0+ adds parity across enclosures

b) Intra-disk RAID 4 across one SSD's dies survives a die failure and silent bad blocks, while RAID 2.0+ survives whole-disk loss

c) Intra-disk RAID protects cache data during power failure, while RAID 2.0+ protects data already on disk

d) Both layers defend against whole-disk loss, so intra-disk RAID lets the pool tolerate one extra failed SSD

10. A bank's test team needs a copy of a 10 TB production LUN on OceanStor Dorado for a two-week regression cycle. Testers will write heavily to the copy. Testing must start the same day, without waiting for a full copy, and once background copying has finished the copy must no longer depend on the production LUN's data blocks, so production can be reorganized freely.

Which feature best meets all three requirements?

a) HyperSnap, mapped to the test hosts as a writable SAN snapshot LUN

b) HyperCDP, with a fixed-period schedule creating fresh copies each day

c) HyperVault, keeping an independent backup copy for the testers to use

d) HyperClone to a same-capacity target LUN on the array

Answers:

Question: 01 Answer: a	Question: 02 Answer: b, e	Question: 03 Answer: c	Question: 04 Answer: d	Question: 05 Answer: a, c
Question: 06 Answer: b	Question: 07 Answer: a	Question: 08 Answer: d, e	Question: 09 Answer: b	Question: 10 Answer: d

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