Vendor: Huawei
Exam Code: H13-611
Exam Name: HCIA-Storage V4.0
Version: DEMO
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QUESTION 1
The following description of the hard disk domain in Huawei RAID 2.0+ technology, the error is:
A. A hard disk domain is a group of hard disks
B. A hard disk can only belong to one hard disk domain
C. OceanStor V3 storage system can create one or more hard disk domains
D. In the hard disk domain, the types of hard disks are the same, and the size and speed of the hard
disks must be consistent.
Answer: D
Explanation:
Analysis: In a hard disk domain, the same type of hard disk constitutes a storage layer, and then
each storage layer according to certain rules.
Divided into Disk Group, there is no requirement that the size and speed of the hard disk should
be consistent.
QUESTION 2
Most of the data generated by the Internet industry is structured data, which accounts for about
80% of the total data.
A. TRUE
B. FALSE
Answer: B
Explanation:
Analysis: Most of the data generated by the Internet industry is unstructured data.
QUESTION 3
Multipath software can only be used in IP-SAN.
A. TRUE
B. FALSE
Answer: B
Explanation:
Analysis: It is also needed in the dual control of the low-end SAN/NAS converged storage
architecture; FC SAN is also required.
QUESTION 4
Description 1: HyperMirror has a LUN failure, the host service is not interrupted, the HyperClone
primary LUN fails, and the host service is interrupted.
Description 2: HyperMirror supports dual copies, HyperClone supports a maximum of 1 master
LUN: 16 slave LUN mode.
A. description 1 is correct, description 2 is correct
B. description 1 is correct, description 2 is wrong
C. description 1 is wrong, description 2 is correct
D. description 1 is wrong, description 2 is wrong
Answer: B
Explanation:
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Analysis: HyperMirror (volume mirroring): by providing two mirrored physical copies for local
LUNs or LUNs of third-party storage systems, continuous redundant backup protection of LUNs,
thereby improving LUN reliability, reducing disaster risk and operation and maintenance costs .
HyperClone (clone) can achieve full backup of LUN level without interrupting the host business,
available.
QUESTION 5
A company needs to make a backup strategy. The company has a small amount of backup data,
and hopes to back up in a short time and save storage space to the maximum. What type of
backup do you recommend?
A. Full backup
B. cumulative incremental backup
C. differential incremental backup
Answer: C
Explanation:
Analysis: Cumulative incremental backup: a full backup once a week, the rest of the week and the
difference between the last backup and the last backup. Differential incremental backup: a full
backup once a week, and the difference between the daily backup and the full backup for the rest
of the week.
QUESTION 6
The following description of common storage protocols is correct?
A. The ATA protocol uses a parallel interface, which can only be built-in and requires cable length
B. The SCSI protocol does not support hot swap
C. A SAS domain can connect 15 devices
D. FC protocol has good compatibility and long transmission distance
Answer: A
Explanation:
Analysis: Both SCSI and SAS support hot swapping; a SAS domain can support up to 16384
devices.
QUESTION 7
A company has sufficient client server resources, but network resources are tight. Which
deduplication strategy is suitable?
A. file-level deduplication
B. Byte-level deduplication
C. source deduplication
D. Deduplication on the target side
Answer: C
Explanation:
Analysis: Byte-level deduplication belongs to target-end deduplication
QUESTION 8
The following description of the characteristics of the LAN-FREE backup method is incorrect:
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A. The backup data stream does not occupy LAN resources
B. The backup proxy does not affect the performance of the application server
C. Backup performance is usually higher than LAN-BASED
D. Does not affect user network performance
Answer: B
Explanation:
Resolution: The backup proxy will affect the performance of the application server.
QUESTION 9
Two CKs in a CKG of RAID2.0+ can come from the same hard disk.
A. TRUE
B. FALSE
Answer: B
Explanation:
CKG is a logical storage unit composed of CKs from different hard drives in the same DG
according to the RAID algorithm.
The smallest unit of resources allocated by the pool from the hard disk domain.
QUESTION 10
Description 1: A RAID consisting of several hard disks is called a physical volume. Description 2:
RAID 5 can improve the read and write rate and provide a certain degree of data security, but
when there is a single hard disk failure At this time, read and write performance will be greatly
reduced.
A. Description 1 is correct, description 2 is correct
B. Description 1 is correct, description 2 is incorrect
C. Description 1 is wrong, description 2 is correct
D. Description 1 error, description 2 error
Answer: C
Explanation:
Analysis: RAID consists of several hard disks (physical volumes);
RAID can create one or more logics according to the specified capacity.
Volume, a logical volume is a hard disk (physical volume) for the host.
QUESTION 11
What is the correct description of RAID 5 as follows? (Multiple choice)
A. RAID 5 has a fixed check disk
B. RAID 5 is verified by XOR algorithm
C. RAID 5 uses striping to write data
D. RAID 5 allows up to two member disks to fail simultaneously without data loss
Answer: BC
Explanation:
Analysis: RAID 5 is an improved version of RAID 3 that uses striping and calculates parity
information.
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QUESTION 12
Extent of RAID2.0+ technology is the basic unit of which technology in the storage pool? (Multiple
choice)
A. Application space
B. Free up space
C. Statistics
D. Data migration
Answer: ABCD
Explanation:
Analysis: Extent is a fixed-size logical storage space divided on the basis of CKG, the size is
adjustable, and it is a hot data system.
The smallest unit of accounting and migration (data migration granularity) is also the smallest unit
of applying space and releasing space in the storage pool.
QUESTION 13
Regarding OceanStor V3 LUN deletion, what is wrong in the following description?
A. The deduplication function is used together with SmartCache to accelerate performance
B. The taken-over heterogeneous array LUN supports block-level deduplication
C. Deduplication and remote replication cannot coexist on the same LUN
D. When the LUN is created, the deduplicated LUN is selected and cannot be restored to the state
without deduplication.
Answer: B
Explanation:
Resolution: On the premise of enabling SmartCache in the file system, delete the SmartCache
accelerated fingerprint using the file system.
To improve the system deduplication processing performance.
QUESTION 14
Is the following statement correct?
A. After using RAID 5 with 6 200G hard drives, the available space is 1200G
B. NL SAS/SATA hard disks are suitable for data protection using RAID 6, and SAS hard disks are
suitable for data protection using RAID 5.
C. S2200 V3 can support SSD. SAS, SATA hard drives
D. OceanStor V3 series products support RAID 0/RAID 1/RAID 5/RAID 10, but not RAID 6
Answer: B
Explanation:
Resolution: The hard disk types supported by OceanStor 2200 V3 are: SAS, NL-SAS and SSD.
and SATA is not supported. OceanStor V3 series product support
QUESTION 15
What versions of the NFS protocol are there? (Multiple choice)
A. NFS V1
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B. NFS V2
C. NFS V3
D. NFS V4
Answer: ABCD
Explanation:
Resolution: NFS is a network file system. With the continuous development of the network, this
protocol version has gradually increased. There is already The latest version of 4.1.
QUESTION 16
The SmartCache feature in Huawei OceanStor V3 series products can only improve read
performance, not write performance.
A. right
B. FALSE
Answer: A
Explanation:
Analysis: The SmartCache feature improves the access efficiency of read hotspot data in the
storage system by copying the read hotspot data to the SmartCache pool.
QUESTION 17
The following description about Huawei RAID2.0+ technology is correct: (multiple choices)
A. The hard disk type of each storage layer in the hard disk domain is the same
B. The hard disk space is divided into fixed-size blocks
C. Users can set "RAID policy" for each storage layer in the storage pool
D. grain as the minimum granularity of data migration and the basic unit that constitutes Thin LUN
Answer: ABC
Explanation:
Analysis: The OceanStor storage system divides the Chunk Group (CKG) into smaller Extents.
According to the minimum granularity of migration and the basic unit constituting Thin LUN, the
default is 4MB. For Thin LUN or file system.
A more fine-grained division (Grain) will be performed on the Extent, and it will be mapped to the
Thin LUN and file system in the unit of Grain System.
QUESTION 18
In Huawei OceanStor storage devices, coffer disks are an optional configuration because the
write cache has mirrors, and There is a backup power supply for the controller.
A. TRUE
B. FALSE
Answer: B
Explanation:
Analysis: Each controller has one or more hard drives built in as data safes.
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