Free Access To HCIA-Storage V4.5 H13-611_V4.5-ENU Dumps

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Page 1 of 14

1. There a re two statem e nts about backups belo w , which is corr e ct?

Statement 1: The disaster re c overy plan does not need to consider w h ether the backup is on tape or o n hard disk.

Statement 2: The bac k up plan should consider the worst-case sc e nario.

Statement 1 and 2 are both correct.

S tatement 1 is corre c t, Statement 2 is wrong

Statement 1 is wrong, S tatement 2 is correct

Statements 1 and 2 are both wrong

2. Which of the following descriptions of the iSCSI protocol a re correct? (Multiple Choice)

T ransmission based on TCP/IP protocol

The SCSI layer is res p onsi b le for gene r ating the command de s criptor block

iSCSI general is responsible for generating iS C SI protocol d ata unit

Use AT A protocol as t he transmission protocol

3. Which of the following about the data and information is correct? (Multiple choice)

Data is a r ecord that reflec t s the attributes of objective t hings, and is the specific manifestation of information

Data refers to i n formation that can be stored and transmitt e d

Information is data processed to meet the needs of u sers for decision-making

Data is the sum of in f o rmation and data red u n d ancy

4. Which of the following options belong to the subsystem of t h e storage d e vice? (Multiple Choice)

Storage management software subsystem

Hardwa r e subsystem

Connect the subsyst e m

Control subsystem

5. Storage disaster recovery technology is m a ture, with a wide ran g e of options.

T rue

False

6. hich of the following options are correct rega rd ing the ad v antages of NVMe? (Multiple Choice)

Low latency

High ban d width

High IOPS

Low ene r gy consumption

7. The Internet of Things (IoT) is an important pa r t of a new generation of i n formation technology a n d an important d ev elopment stage in the "i n formatization" era.

T rue

False

8. H o w is the informa t i o n life cycle a f fected? (Multiple Choi c e)

B u s iness requirements of the enterprise

Government policy

Industry r egulations

Storage media used

9. C r eate a Thin LUN on Huawei O ceanStor V3 with a capacity of 100G and an initial allocated capacity of 10G. After the LUN is mapped to the Windows 2012 host, the c orrespond i ng disk is scann e d on the host. The displayed cap a city of the disk should be 10G.

T rue

False

10. On whi c h of the foll o wing storages the NV ME interface pro t ocol is applied?

NL-SAS

S SD

S AT A

SAS

Page 2 of 14

11. In Hua w ei OceanStor V3 based on RAID 2.0+, when a user c rea t es a file s y s te m , the s y stem will f i rst automatically create a correspond i ng L UN and g e n erate a file s y stem on the LUN.

T rue

False

12. T ake H u awei Ocean Stor flash st o rage p r oduc t s as an ex a mpl e .

Which of the following descriptions of indicator lights are c o rrect? (Multiple Choice)

In the control box, the positioning indicator is o f f, indic a ting that the control board is not positioned

The warning light in the control ph a se is ambe r , indicating that the control has an alarm

The battery button and battery indicator must be separated

The locating indicator in the control box is steady blue, indicating that the control bo a rd is locating

13. Which of the following has the highest performance?

SLC

MLC

TLC

QLC

14. The R D MA protocol can achie v e direct access to the mem o ry o f the remote device. R DMA achieves ultra-low latency between endpo i nts, ultra-high throughput transmission, and does not re q uire cpu, os intervention does not ne e d to con s ume too many other resour c es for the processing and transmission of network dat a .

T rue

False

15. The iS C SI protocol can be t r ansmitted through the optical fiber net w ork, and the tran s mission distance is almost unlim it ed. The iSCSI protocol is limited by t h e SCSI protocol and can run on the Ethernet.

T rue

False

16. The a dd ress of the sector is also called the CHS address, and the ad dr essing sequence is?

Cylinder-head-sector

Cylinder-sector-he a d

Sector-head-cylinder

head-cylinder-sector

17. Regarding the disast e r reco v ery drills, which of the follow i ng statement is incorrect?

Perform the drills in accordan c e with the real disaster rec o very s teps.

Familiarize with the disaster recovery process through disa s ter recover y , a nd exercise business recovery capabilities when a disaster strikes

Through disaster tolerance drills, b u s iness i n tegrity cannot be checked

Disaster r ecovery drills are verification and the m ost e f fe c tive means to prove the availability of the s y stem

18. Log in to Device Manager

6->2->3- > 4->5 - >1

6->3->2- > 4->5 - >1

3->2- > 4- > 5->1 - >6

4->5- > 2- > 3->1 - >6

19. What a r e the authen t ication met h ods of CIFS? (Multiple Choice)

AD domain authentication

Username and passw o rd

Global authentication

Local authentication

20. Which of the following are the characterist i cs o f cloud storage? (Multiple Choice)

Integration

Flexibility

V ertical e x pansion

Open

Page 3 of 14

21. If a user cares about reliabili t y and random write performan c e, what RAID level would you recommend?

RAID 10

RIAD 50

RIAD 1

RAI DO

22. What a r e the main elements that the disaster recovery system pays att e ntion to? (Multiple choices)

B a ckup window

R T O

RPO

Backup capacity

23. T aking OceanStor H uawei all-fla s h storage p r oducts as an e x ample, which of the f o llowing descriptions of the indicators are corr e ct? (Multiple Choice)

The alarm indicator in the control b o x turns amber to indicate t hat there is a warning in the control b o x.

The frame is positioned in the controller frame. T he indica t or light is steady blue, indicat i ng that the controller fr a me is being positioned.

The pow e r button and pow e r indicator must be sepa r ate.

24. RAID 2.0+, which of the following is correct?

The size o f the chunk a nd SAS/SSD is a fixed size of 256MB

The size o f the chunk a nd S AT A /NL-SAS is a fix e d size of 64 M B

The extent size of di f f e re n t storage pools can be di f ferent, but the extent size in the s a me storage pool is the same.

It is the largest unit that applies for and releases space in the storage poo l .

25. Which of the following descriptions of RAID str i ping relat e d concepts are correct? (Multiple Choice)

Striping technology divides a continuous piece of data into many small p a rts and stores them on di f ferent disks.

Single or multiple consecutive s e ct o rs in a single hard disk form a s trip, which is the element that makes up t h e strip

Striping is a technology that automatically balances the I/O load to multiple physical h ard drives

After striping, the speed that the RAID group can provide is f a ster than that of a single disk

26. Which of the following descriptions of SAN and NAS are correct? (Multip l e choice)

SAN is more used in the da t abase scenario to store this structured data

Now NAS is a s torage for unst r uctured data, such as shared f ile servers u sed by e mployees in m a ny dep a rtments for key o f fice docu m ent sharing a nd centralized stora g e.

DAS, NAS and SAN are all ext e rn a l storage, so storage res o u r ce sharing can be easily realized.

The characteristic of NAS i s to put t he file s y s t e m of the s erver in the storage, so that the server can share data t h rou g h the n e twork.

27. Which of the following descriptions are correct about the f u n ctions of the Hua w ei storage device control mod u le? ( M ultiple Choice)

FC interf a c e module is used for FCoE network connection

The syst e m plug provides st o rage for various interface modu l es through t h e backplane

Expansi o n module, cascade control and other d i sk encl o sures through the expansion port

The hard disk module provides storage capacity for the storage system

28. What a r e the correct analysis of t h e dual-contr o l architec t ure storage subsystem? (Multiple Choice)

Only for high- e nd stor a ge

In A ct i v e-Act i ve, only one controller recei v es data requests i n the same t i me period

In Standb y , the controller does not receive data requests and does not 0 hard disks

There are two working for m ats: A ctive-Active, Standby

29. A comp a ny is mainly used for file system sharing in Linux, UNIX, MacOS and VMware ope r ating system envi r onments.

Which of the f o llowing file acce s s proto co ls is suitable for this company?

NFS

CIFS

T elnet

HTTP

30. Regarding the LUN deduplication of OceanStor V3, which of the following statement is wrong?

The deduplication function is used togeth e r with Smart Cache to accelerate performa n ce

The heteroge n eous a r ray LUNs taken over sup p ort block-level deduplicat i on

Deduplic a tion and re m ote repli c ation cannot coexist on the s ame LUN

A dedupli c ated LUN is selected when crea t ing a LUN, and it cannot be res t ored to a state without ded u plication

Page 4 of 14

31. For re m ote replication, the primary LUN and secondary LUN must be consistent.

T rue

False

32. SmartKit contains all kinds of tools requir e d for IT equip m ent deployment, ma i ntenance, upgrades, etc., which can help p r o d uct users, s e rvi c e engin e ers and mai nt enance eng i neers to accurately oper a te the equipm e nt in the abo v e process, reduce the di f ficulty of operation, and impro v e work e f ficient.

T rue

False

33. What a r e the current challenges in disaster recovery? (Mul t iple choices)

Disaster recovery co n struction requires expen s ive investment

Diverse a pplications and inconven i ent manag e ment

The cloud i fication trend of IT systems is becomi n g more a nd more obvio us . Many v irtual machines also need to be p rotected. The current d isaster recovery constructi o n lacks a unified mana ge ment system.

Data sharing and other capabilities are limited by the phys i c a l location of the data, app l ications and data cannot be separat ed , and it is impossib l e to build agile a p plications and better disaster tolerance features

34. C r eate a Thin LUN o n Hua w ei O ceanstor storage with 10 0 G and an initial allocated capacity of 1 0G. After mapping this LUN to a Windows ID host, the corresponding disks scanned on the h o st should be displayed as 10G.

T rue

False

35. In the Huawei Ocea n Stor V3 storage system, w hich one of the following statements a bout mappi n g snapshot L U Ns is correct?

The snapshot LUN mapped to the h ost can only be re a d but not written

The activ a ted snapshot LUN can be mapped to the host for reading a n d w r iting

Snapshot LUN can on l y be mapped to the same host as the ori g inal L U N

All statements above are correct

36. Semi-structured da t a is generally self-describing, and the s t r ucture and content o f the data are mixed, and there is no obvious distinction.

T rue

False

37. The clo u d data cen t er virtualizes st o ra g e, computing and ne t work resour c es, and provides a virtualization platform for users to use.

T rue

False

38. Wh e n CIFS share pe r missions are assigned, if a user lives i n a di f ferent user gro u p, and for a sh a re, the CIFS sh a re grants di f f erent permi s s ions to the user gro u p and the use r , and the user ' s permissio n s are the maximum authority of the user gro u p and u s er permissio n s of the us e r .

T rue

False

39. D e dupli c ation and compression can only be enabled for T hin LUN.

T rue

False

40. C o nver g ed storage n as and san c ombine to pr ovide block sto r age and o bject s torage services, which greatly increases management costs.

TRUE

F ALSE

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41. An e-c o mmerce company has configured the highest prior i ty of I/O for t he main online transaction business in the storage system, and the instant messaging and archive services are respectively low and medium priorit y . At this tim e , the I/O needs to be written in the s a me time period 12 3 456 , Among which

3,5 comes f r om online transaction business, 2,6 c o mes from ins t ant messaging, 1,4 c om e s from archiv in g business, which of the fol l owing I/O writing sequence is wrong? (Multiple Cho i ce)

345612

123456

3514 6 2

3526 1 4

42. Which item is correct in the description of distributed stora g e nodes based on H u a w ei's DCeans t or distributed stora g e such as Huawei oceanstor 10 00 ?

The nvme interface solid st a te drive is u s ed in t h e full fl a sh n ode

The FC i n terface mechanical hard d isk is used in the perfor m ance medi u m node

The FC interface solid s tate drive is used in the perform a n c e medium no d e.

The nvme interface mechanic a l ha r d disk is us e d in the capa c ity node

43. The Co E protocol means to enc a psulate the FC protocol i n to TCP/IP p r otocol package a n d transmit it on the Ethernet.

T rue

False

44. Which of the following steps does the CIFS protocol need to go throu g h? (Multiple C h oice)

Protocol h andshake

Safety certification

Shared connection

File oper a tions

Disconnection

45. Which is correct about HyperMeteor? (Multiple Choice)

The local site and the remote site can run s e rvices at the s ame time

It can only be configur e d betwe e n stora g e devices of the sa m e model and version

Support automatic storage failover

Arbitration server must be configur e d

46. R e ga r ding PCle Scale-Out and IP Scale-Out, which descriptions are correct? (Multiple Choice)

PCle Scale-Out is a Scale-Out technology built on the PCle p rotocol, and IP S cale-Out i s built on t h e IP protocol

PCle Scale-Out realiz e s bu s iness exchange be t ween contro l lers by integrating PCle chan n el and RDMA technology

PCle Scale-Out can support Ether n et protocol

PCle Scale-Out can support i W ARP technology

47. Oceanstor dual-cont r oller hybrid flash storage pro d ucts m u s t ensure that the LUN w o rking controller and the attri b ution device are consist e nt in control

T rue

False

48. Data m a nagem e nt is the process of using computer ha r dw a re and software technol o gy to e f fectively collect, store, process a n d app l y data. In chronological orde r , w hat phases can data ma n agement be divided into? (Multiple Choice)

File syst e m manage m ent

Manual mana g ement

T raditional da t abase system management

Big data managem e nt

49. Which of the following descriptions is correct?

Description 1: LUN is composed of multiple Extents in the storage pool. Description 2: LUN can conta i n one or more types of Extent.

Descripti o n 1 is correct, description 2 is correct

Descripti o n 1 is correct, description 2 is wrong

Description 1 is wrong, description 2 is correct

Description 1 is wrong, description 2 is wrong

50. Which of the following is not an IP SAN component?

Storage d evices w i th iSCSI interf a ce

T wisted pair

NIC

FC swi t ch

Page 6 of 14

51. A comp a ny has a variety of s e rvices such as mail and online storage, a nd has limit e d storage space. It plans to use Smart Thin technology to optimize storage space.

Reg a rding S mart Thin, w hich of the f o llowing statements are co r rect? (Multiple Choice)

Smart Thin virtualizes storage res o urces

Smart Thin does not allocate all the spa c e in advance, but p resents the capacity form larger th a n the physical storage space to the customer

Smart Th i n does not support t he c r eation of LUNs larger than the maxi m um physic a l free space of the storage pool

The implementation of Smart Thin is to allocate on dema n d

52. Which of the following PCIe v ersi o ns are currently availab l e? (Multiple Choice)

PCIe 1.0

PCIe 2.0

PCIe 3.0

PCIe 4.0

53. Which of the following descriptions are correct about IP scale-out expan s ion? (Multiple Choice)

iwaRP protocol can be used

PCIe proto c ol can be used

TCP/IP p r o t ocol can be used

IB protoc o l can be used

54. What a r e the NFS authentication methods? (Multiple Cho i ce)

Global authentication

Local authentication

LDAP authentication

NIS c ertif i cation

55. Among the componen t s of the mechanical disk, the compon e nts responsible for readi n g and writing data are:

Di s k

Read/write head

Head arm

Spindle

56. The r e a r e two statements about backups as follows:

Statement 1: The data backed up on the tape can be used for d a t a recovery at any time, but only the historical data at the time of the back u p can be recovered, not the data at the time of the failure. Statement 2: Using tape as the back u p medium is the highest R T O backup method.

S tatement 1 is corre c t, Statement 2 is correct

S tatement 1 is corre c t, Statement 2 is wrong

Statement 1 is wrong, S tatement 2 is correct

Statement 1 is wrong, Statement 2 is wrong

57. FCoE is a transmissi o n pro t ocol stand a rd t hat can encapsu l a t e frames in FC in a lossless Ethernet, and is used to build a storage net w ork.

T rue

False

58. Which of the following descriptions of cloud c o mputing are correct? (Multiple choices)

Cloud computing is d ynamically scalable

End users of cloud c o mputing ne e d to underst a nd how clo u d computing works

Cloud computing can provide virtual disk space

Cloud computing is usually u s ed in business systems that re q uire high p er f ormance and high respo n se speed

59. Which interfaces are used for mechanical hard drives in t h e storage system? (Multiple Choice)

NV ME

S AT A

SAS

PCIe

60. Unstructured d ata is stored in the database, a n d the reali z ed data can be logic a lly expressed in two-dimens i onal table structure

T rue

False

Page 7 of 14

61. The d ed uplication feature re d uc e s space through compre s s io n .

TRUE

F ALSE

62. The pro c ess of rege n erating all user data and parity data on the failed disk in the mi r ror ar r ay or RAID

array is call e d:

Recalcul a tion

Refactoring

Hot backup

Recovery

63. The R P O in the dis a ster reco v ery system measurement in d ica t ors is us e d to measure the business recovery capability of the d i saster recovery system

T rue

False

64. D u al-c o ntroller storage systems gen e rally contain mirrori n g channels, and data wri t ten to the storage system's C a c he will be written to the p eer controller through the mirroring ch a nnel.

T rue

False

65. Wh e n t h e disk is re a d and w ritten, the sector is the small e st addressing unit. Y ou can write a piece o f data to the fi r s t half of a sect o r , and then write a piece of data to another s ec to r .

T rue

False

66. Which one of the fol l owing tran s mission protocols can be u s ed witho u t the switch?

iSC S I pro t ocol

SC S I protocol

FC protocol

FCoE protocol

67. Which of the following is the correct configuration process for the Huawei OceanStor V3 storage s y stem?

Create st o rage p ool -> create LUN - > add mapp i ng

Create st o rage p ool -> add mapp i ng -> create LUN

Create L U N->C r eate Storage Pool - >Add Mapp i ng

Create L U N->Add Ma p ping- > Cr e ate Storage Po o l

68. Which of the following descriptions about the technical characteristics o f pre-copy are correct? (Multiple C h oice)

Reduce the occurrence of refactoring.

Improve RAID reliabilit y .

Pre-copy needs to suspend RAID g roup b usiness access in advance.

When the number of e r rors of the s u spicious failed disk exc e eds the preset threshold, immediately migrate and copy the data on the suspicious failed disk and import it to the hot spare disk.

69. The InfiniBand interf ac e is used as a front-e n d host interface in Hu a wei OceanStor V3 unified storag e , which can flexibly s upport the direct c o nne c tion and multiple networking mo d es of switch.

T rue

False

70. The co r e of disaster recov e ry technology is data replication technolog y . There are many data replication technologies.

Which three layers can be roughly di v ided into the distribu t ion of equipment that realizes the replication function? (Multiple Choice)

Applicati o n layer

Host layer

Network layer

Storage layer

Page 8 of 14

71. H u awe i 's all-flash storage system us e s the SmartMatrix archite ct ure to achieve full interconnection betw e en the fro n t and back ends, a nd the failure of any one controller d oe s not a f fect the normal op er ation of the business.

T rue

False

72. Which one of the fol l owing statements is correct?

The avail a ble spa c e of 6 200G h a rd disks as RAID 5 is 1200G

NLS A S / S AT A hard disks are s u itable for data protection using RAID 6 and SAS hard disks are s uitab l e for data pro t ection using RAID 5

S2200V 3 can support SSD, S AS, S AT A hard dr iv es

OceanStor V3 series p roducts support RAIDO/RAID 1/RAID 5/RAID 10, but not RAID 6

73. Which of the following objectives with the minimum value c a n be controlled by Smart QoS policy? (Multiple C h oice)

Bandwidth

Standard IOPS

Delay

Capacity

74. Which statements are correct about storage ex p ansion? (Mu lt iple Choice)

Scale-Out technology can inc r ease storage perf o rmance and capacity

Scale-Up technology needs to increase storage equipment to increase st o rage capacity

The device nodes of Scale-Out can be in the s a me city

Scale-UP technology is horizon t al expansion, Scale-Out technology is ve r tical expansion

75. With NV Me s tandard, 0PCle, S S D can use native PCIe to dir e ctly c onnect to CPU, which can r e duce the delay caused by ext e rnal controll e r (su c h as S AT A/sas) and CPU.

T rue

False

76. Use the CIFS protocol to acc e ss the share. W hen the share name is the same as the user name, the ord e r of acc e ss to the sh a re is:

Query the CIFS s hare first, i f no matching share information is found, then query the Homedir share

Query CIFS shares, if n ot found, it w ill return failure

First check the Homedir share, if no matching s h are informat i on is found, then check t h e CIFS share

Query Homedir share, if not found, it will ret u rn failure

77. A comp a ny newly purchased a hybrid flash memory device.

What functi o ns can the d evice provide for the company? (Multiple Choice)

Able to p r ovide intelligent classification function of cold and hot data

Able to support file sharing in di f ferent departments

Can create ThinLun to s ave initial capacity

Can support the financial department to use database appli c ations

78. Which of the following state m ent of Quota tree is correct?

Quota tr e e is a first-l e vel directory und e r the file system,

Can only be created, d eleted, and r enamed by the administra t or throu g h the command line or GUI managem e nt interface, ordinary users can delete the empty Quota tree

Quota tree can be re n amed and de leted when s har e d by ag r eem e nt

Ordinary users can perform quota managem e nt on the num b er or capacity of files under Quota T ree

79. What a r e the synch r onization types of async h ron o us remote replication? (Multiple Choice)

Manual

Automatic

W ait regularly after synchronization starts

W ait regularly after syn c hronization is completed

80. Statement 1: Hyper Mirror o n e LUN failure, the host business is not interrupted, Hyper Clone prim ar y

LUN failure, the host business is interrupted.

Statement 2: Hyper Mirror supports dual cop y , and Hyper Clo n e s upports a maximum of 1 primary LU N :

16 seconda r y LUNs.

S tatement 1 is corre c t, Statement 2 is correct

S tatement 1 is corre c t, Statement 2 is wrong

Statement 1 is wrong, S tatement 2 is correct

Statement 1 is wrong, Statement 2 is wrong

Page 9 of 14

81. Which of the following is t he advantage of object storage? ( Multiple choice)

Object in t erface, fle x i b le data segmentation

E xternal S CSI or file in t erface

Flat objects, easy to a ccess and extend

Improved data integrity and security

82. Through the RAID algorithm,

Calculate the data on the failed disk based on the data on the n o rmal disk a n d the check disk

1->2->5- > 4->3

1->2->3- > 5->4

5->1- > 2- > 3->4

5->2- > 1- > 4->3

83. What is t h e synchronization cycle time limit for asynchronous remote repl ic ation?

1s~144min

3s~144min

1s~300min

3s~300min

84. Engin ee r A wants a RAID that does not a f fect the CPU, and e ngineering B wants a RAID that t h e

CPU runs.

Which of the f o llowing is correct? (Multiple Choice)

Engineer A hard w are RAID

Engineer B hardw a re RAID

Engineer A software RAID

Engineer B software R AID

85. The S AT A connector can support both S AT A and SAS hard disks at the same time.

T rue

False

86. Some file types in the computer file system, s u c h as XML, H TML, and Json, can be classified as semi-structu r ed data acc o rding to the data type.

T rue

False

87. The IT storage e q ui p ment of a bank was relocated, and the m echanical hard disk c o uld not be r e ad. The engi n e e r judged that the hard disk was broken.

What are the possible reasons? (Multiple Choice)

The flash memory particles are bad

Broken head

The control circuit is s hort-circuited and bur n ed out

Head dis p lacement sc r atches the disc

88. If a com p any uses an O L TP da t abase, which migration strategy is suitable for the company's Smart

T ier?

No migration

Automatic migration

Migrate to the high-p er formance tier

Migrate to the low-per f ormance tier

89. In Huawei RAID 2.0+, which is the correct des c ription of c h unck and ext e nt?

Chunck i s the smallest unit f o r LUN to apply for and release space from the storage p ool

Extent i s the smallest unit for the storage pool to allocate resources from the ha r d disk domain

Chunck is the smallest unit of hot d ata statistics and migr a tion

The extent size of di f f e re n t storage pools can be di f ferent, but the extent size in the s a me storage pool is uniform

90. Without hot backup, how many bad disks can raid 5 tolera t e at most?

Page 10 of 14

91. Mapping

Please sort the above steps.

2->3->1- > 4->5 - >6- > 7 - >8

1->2->3- > 4->5 - >6- > 7 - >8

2->3- > 1- > 4->8 - >7- > 5 - >6

7->5- > 1- > 3->2 - >4- > 8 - >6

92. PCIE is a high- p erfo r mance and h igh-b a ndw i dth serial commu n ication interconne c tion standard t o replace the bus-based communication architecture. It follows t h e existing PCI concepts a n d signal standards, and builds a higher-s p eed serial communication system standar d .

T rue

False

93. Com p a r ed with traditional RAI D , what are the characteristi c s of RAID 2 .0+ technology? (Multiple

Choice)

Through block virtualization, the automatic and balanced di s tribution of data on the ha r d disks in the storage pool is realized, a voiding the uneven hot a n d cold hard d i s ks

Need to manually configure a sep ar ate global or local hot s p are hard d rive

When the hard disk fails, RA I D 2.0+ can further shorten the r e construction time through streamlined reconstruction

Support many-to-many reconstru c tion, and t h e reconstructed d ata stre a m is written to multiple hard disks in parallel

94. T ake Huawei OceanStor hybrid f l ash memory as an example. In the following descr i ption of hybrid flash memor y , which options are cor r ect? (Multiple Choice)

Device Mana g er only supports command line managem e nt operat i ons

Smart Matrix comprehensive interc o nnection architecture and component full redundancy design, supporting A c tire-Ac t ive working mo d e

Provide advanced da t a protection techno l og i es including Sma r t T ier and Smart Thin

Support 0 hard disk types including S AT A and A T A

95. An emp l oyee of a c o mpany did the following in the company's storage system: 9:00 took a snapshot of LUNA and activated it, 10:00 modified all the data of the s n apshot LUN a n d source LUN, and 1 1:00 rolled back the snapshot.

Which of the following is correct? (Multiple choice)

The data in the copy space before COW wri t e is 9:00 LUNA da t a

The data in the copy space before COW wri t e is 10:00 LUNA data

The data of the source LUN is the modified data at 10:00

After the snapshot is rolled back, t h e data of the source L U N becomes the data of the modified snapshot L U N at 10:00

96. The ad v antages of SAN for NAS unified storage do not include:

Users do not need to sepa r ate l y plan SAN and NAS storage capacity

Users c an freely alloc a te storage to meet the ne e ds of the application environment

Users do not need to care about the capacity u t i lization is s ues related to data block and file storage support

Users can realize the functions of N AS by buying a set of S A N

97. What conditions shou l d be consider e d for the device backup ba n dwid t h? (Multiple choice)

The size o f the initial d ata

Daily qu a ntity increase

Backup c ycle

Backup sta f f

98. Which of the following state m ents about Huawei RAID 2.0+ is correct? (Multiple choice)

Hot spare space cannot cross engines

RAID 2. 0 + uses an indep e nd e nt hot spare disk

Chunk size and Extent s ize are not adjustable

Automatically reserve a certain amount of hot spare space in the disk d o main according to the hot spare policy

99. Re g ardi n g the characteristics of the LAN-F R EE backup method, which of the following is incorrec t ?

The backup data stre a m does not occupy LAN r esources

The backup proxy do e s not a f f ect the perform a nce of the app l ication server

Backup p erformance i s usually higher than that of LAN-BASED

Does not a f fect user network perfo r mance

100. With the advent of t h e era of big data, the corresponding stora g e techn o logy is also unde r going changes. R e gardi n g the chan g es in stora g e techn o log y , which of the following state m ents is correct? (Multiple choice)

The file s y s tem has e v ol v ed from a lo c al file s y st em to a c luster file s ystem and a distributed file s ystem

T raditional NAS, for PB-level data, complex volume manag e me n t and u n balanced sy s tem capacity allocation, which will lead to waste of resources

Mass storage system i s charact e rized by more complex file s y stem and more complex managem e nt

Large-scale scalability is the characteristic of m a ss storage systems

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101. During the host&ap o s;s read operation of Thin LUN, what te c hnology is u s ed to read d ata from the correspond in g actual sto r age space in the storage pool?

Capacity - on- w rite

Direct-on-time

Direct-on - read

Capacity-on- r ead

102. Statement 1: When Windows mou n ts a CIFS share with the same IP address (domain name or machine name), the same user can mount one or more shares at t h e same t ime, but d i f ferent users cannot mount the same or di f ferent shares.

Statement 2: When Win d ows mounts the Homedir share with the sa m e IP address (do m ain name or machine n a me), multiple use r s cannot mount multiple shares.

S tatement 1 is corre c t, Statement 2 is correct

S tatement 1 is corre c t, Statement 2 is wrong

Statement 1 is wrong, S tatement 2 is correct

Statement 1 is wrong, Statement 2 is wrong

103. A bank p urchased 1, 0 00 servers, deployed in a distributed a rc hitecture, created multiple storage pools using the ser v er's local hard d i sks, and bound storage resources with the business network, so as to ensure the elastic expansion of sto r age reso u rces and impro v e utilization.

T rue

False

104. Which of the following descriptions about Huawei RAID 2.0+ technology is correct? (Multiple choice)

The hard disk types of each storage layer in the hard disk domain are the same

The hard disk space is di v ided into fixed-size bl o cks

The user can set the "RAID strategy" for each stora g e tier in the storage p ool.

Grain is t h e smallest granularity of data migration and the basic unit that c o nstitutes Thin LUN

105. Which of the following are included in the host- l evel disa s ter recovery? (Multiple choice)

Applicati o n level

Database level

Array level

Logical volume level

106. LAN Free and Server Free are the backup net w orking mod e s that have little impact o n host performance.

T rue

False

107. Which o n e of the foll o wing op e rat i ons is a daily maintenance item in the data center storag e ?

V iew and handle a l ar m s

I n spect s t orage devices

Check the room envir o nment

Check the internal environment of the rack

108. Snaps h ot refers to a consistent d ata copy of source data at a certain po i nt in time. After the snap s h o t is generated, it can be re a d by the host or used as a data bac k up at a certain point in time.

T rue

False

109. Which d escription is wro n g ab o ut NFS? (Multiple Choice)

NFS prot o col transmission distance is not more t h an 100 meters

NFS does not support access cont r ol

NFS can be transmitted based on F C network

NFS supports Windo w s and Linux systems

110. T aking Huawei Ocea n Stor distributed storage a s an example, which of the descriptions are correct about the storage interfa c e layer in the software architecture? (Multiple Choice)

Support IB protocol

Support HDFS protocol

Support S3 and Swift protocol

Support SCSI and iSCSI interface protocols

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111. SCSI communication is initia t ed by the initiato r , received a n d processed by the t a rget. When the h ost communicates with the stora g e device, the storage device side a ssumes the role o f the initiato r .

T rue

False

112. Which of the following desc r iptions of NAS is c o rrect? Description 1: NAS i s al w ays based on file sharing.

Description 2: The distance of the network connect i on a f fects t h e performance of the N A S.

Both description 1 and description 2 are correct.

Descripti o n 1 is correct, description 2 is wrong

Description 1 is wrong, description 2 is correct

Both description 1 and description 2 are wro n g

113. The hard disk doma i n supports online adding hard disks, and the storage pool supp o rts online expansion.

T rue

False

114. A device has only one WWNN n u mbe r , but it can have multiple WWPN numbers.

T rue

False

115. In a dat a base, all small IO requests, the engineer should c onfigure

raid 0

raid 6

raid 5

raid 3

116. The con t rol frame is o ne of the core componen t s in storage, mainly including control modules, BBU

modules, power modu l es, managem e nt modules, interfaces, etc.

T rue

False

117. H u awe i' s full-fl a s h stora g e system uses the Smart Matrix a rchitecture to achieve front-end and back-end interconnectio n , and the failure of any controller does not a f fect normal business operations.

T rue

False

118. Which of the following items can b e replaced by CRU users?

Controller

Interface module

BBU mo d ule

Remote module

119. Com p a r e NAS storage and SAN storage in terms of principle, perform a nce, cost, s h aring, and application scenarios.

Which of the following descr i ptions is c orrect? (Multiple choice)

NAS performance is higher than S A N, and its cost is higher t han SAN

SAN is mainly suitable for file sharing scenarios, sharing is more conve n ient

NAS is a storage device with a f ile s ystem, s ha r ing files through the network, equiv a lent to a host in the network

SAN is a high-sp e ed o ptic a l fiber-connected disk network, w hi c h pro v ides disk re s our c es to the ho s t. It has no file system i tself, w hich is equivalent to a hard disk i n the network.

120. Which of the following are the FC topology? ( M ultiple Choi c e)

Arbitration Ring Netwo r k

Peer-to-peer net w ork

Switching network

Dual exchange n etwo r k

Page 13 of 14

121. Among the following backup m edia, the order of unit capaci t y price from low to high is:

T ape, CD/DVD, SSD, virtual tape library

CD/DVD, tape, virtual tape libr a r y , SSD

Magnetic tape, CD/DVD, virtual ta p e librar y , SSD

CD/DVD, SSD, tape, virtual tape lib r ary

122. Which R AID use parity? (Multiple Choice)

RAID 5

RAID 1

RAID 0

RAID 3

123. Which of the following are not the advantages of cloud data centers?

Use large servers to improve perfo r mance

V irtualizat i on impro v es resource utilization

Distributed computing and storage i mprove system reliability

Agree that resource managem e nt improves oper a tion and maint e nance e f ficiency

124. Statement 1: FC protocol and F C oE protocol have di f ferent ope r ating e n vironments, di f ferent ope r ating channels, and the same protocol stack.

Statement 2: FCoE can only run on 1 0 GE, which solves the problem of short FC transmission distance and packet drop in IP network.

S tatement 1 is corre c t, Statement 2 is correct.

Statement 1 is correct, Statement 2 is wrong.

Statement 1 is wrong, S tatement 2 is correct.

Statement 1 is wrong, Statement 2 is wrong

125. Which of the following state m ents about the evolution of s t o rage n etwork architecture is correct?

Users first gene r ated stora g e requ ir ements due to the incre a se in data volume, which resulted in the earliest and simplest sto r age architecture SAN

SAN provides file s torage, and its e mergence s o lves the inc o nvenience of file s haring in the DAS architecture

Compar e d with DAS architecture, NAS architecture can better provide file sharing se rv ices

Distributed storage appeared at the same time as DAS, providing better scalability for DAS architecture

126. One p o rt of a host connected to the switch cannot belong to multiple zones, but can only be divided into one zone.

T rue

False

127. In the following descr i ption of the Hyper clone feature, which options are correc t ? (Multiple Choice)

Heterog e neous LUNs c an be used as Hyper clone source LUNs and target LUNs

Active-active as a negative LUN can be used as a source LUN of a Hyper clone as a target L U N

128. Which is the correct d escri p tion of the FTP file transfer p rot o col?

T ransmission based on TCP protocol

Port 21 create control information b y default

Port 21 t r ansmits data by default

Cannot b e used in Linux scenarios

129. Which of the following sta t ements about the smart mutrix architecture of Hua w ei's flash storage system are correct? (Multiple Choice)

When a controller fails, the bu s iness carried by i t is forc e d to s witch to the mirror controlle r .

The storage pool is evenly d i stributed on all controllers, and RAID 2.0+ is used to manage all the SSD disks in the storage p o ol.

The controller in a single engi n e can access t h e engine th ro ugh the SAS 3.0 fully int e rconnected IO module, which is any hard disk.

The front-end interface card can be accessed by all the con t rollers in the c ontrol box at the same ti m e.

130. Wh e n e ngine e r A is maintaining the Hu a wei a l l-flash storage system, he sees the alarm of the cascade m o dule on the r everse s i de of "Alarms a nd Events" o f D e vice Ma n ag e r . After analysis, it is determined t hat this cascade modu l e needs to be replaced.

What are wro n g during the re placement period? (Multiple Choice)

Choose to replace the cascade m o dule wh e n the business is not busy

After the expansion module rep l acement ope r at i on is compl e ted, use label paper to mark the replaced expansion module

Use Huawei Storage Product Ne t working Assistant to conf i rm t he cable connection of the expans i on module to be replaced

Page 14 of 14

131. Wh e n U l tra Path is i n s talled on the application serve r , the operating system c an automatically identify the LUN m a pped to the h ost without r estarting the host.

T rue

False

132. An ente r prise has established active-active data centers in city A and city

B. If the active-active arbitration m ode of stora g e (such as H uawei Ocea n Stor hybrid f l ash memory) is stat i c pri o rity mode, site A is a s tat i c priority site.

Which of the following de s criptions are correct? (Multiple Cho i ce)

The link b etween the storage syst e ms i s fault y , and both sites A and B c o ntinue to run services

S i te A fai ls , s i te B aut o ma t ically takes over the business

Site B fails, site A aut o ma t ically takes over the business

The link b etween the h ost and site A and site B fails at the s ame time, and the dual-a c tive pair status is displayed as *normal"

133. The Oce a nS to r6800V 3 frame itself can be configured with four controls or only two c ontrols. If the dual-control power supp l y and BBU a re fully conf i gured, the interface cards and controll e rs are all configured in the upper r o w .

T rue

False