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Huawei H13-621 HCNP-Storage-CUSN(Constructing Unifying Storage Network) Exam Practice Test

Demo: 44 questions
Total 294 questions

HCNP-Storage-CUSN(Constructing Unifying Storage Network) Questions and Answers

Question 1

In the process of the whole disk copy, RAID group is in normal condition, all member disks are in available state, data redundancy information of RAID group is complete, and the customer data has no risk of loss.

Options:

A.

True

B.

False

Question 2

Which of the following are true? (Select two Answers)

Options:

A.

remote replication from LUN mapping to the application server can read and write on it

B.

virtual snapshot mapping to the application server can read and write on it

C.

after full amount LUN copy finished, target LUN can mapping to the application server can read and write on it

D.

in process of incremental LUN copy, target LUN can mapping to the application server can read and write on it

Question 3

Among database, Email, WEB applications and other critical business applications, which type of hard disk is advised to choose? (Select 2 Answers)

Options:

A.

IDE hard disk

B.

SATA hard disk

C.

FC hard drive

D.

SSD hard drive

Question 4

The source LUN of storage array remote copy is 500GB, which of the following LUN can be used as the subordinate LUN of remote copy?

Options:

A.

400G

B.

500G

C.

600G

D.

700G

Question 5

The subordinate LUN’s space of synchronous remote replication must be greater than or equal to the source LUN.

Options:

A.

True

B.

False

Question 6

The problem of storage system configuration (DB) usually can be prevention through routine maintenance, which of the following measures can prevent system cannot recover when DB abnormal problems appear? (Select 2 Answers)

Options:

A.

after completion of system configuration, recommend backup DB, to prepare for tthe resumption of the system configuration

B.

recommend timely processing when the safe hard disk failure

C.

timely treatment after RAID group failure

D.

log preservation and archiving

Question 7

ISCSI is based on TCP/IP protocol, the default service port is?

Options:

A.

3260

B.

8088

C.

8443

D.

3206

Question 8

In S5000T disks copy technology of the storage system, which two key parts are included? (Select two Answers)

Options:

A.

failure prediction

B.

data copy

C.

disk offline

D.

online alarm

Question 9

For AA model storage controller, STMS in solaris OS can realize Failback function.

Options:

A.

True

B.

False

Question 10

Two reliability for 80% of the components of a serial system, how much reliability of this system?

Options:

A.

64%

B.

60%

C.

80%

D.

96%

Question 11

Under Linux platform, the host message information is important log of the host-side fault diagnosis, among the logs collected by collecting tools HostInfoTools - 1.2 sh, which file is the message log?

Options:

A.

PROC. txt

B.

OS_TYPE_INFO.txt

C.

LOG_INFO.txt

D.

ARRAY_INFO.txt

Question 12

The ISM equipment management software support: SMI-S, SNMP and other protocols.

Options:

A.

True

B.

False

Question 13

If it spent 10s reading 100 100KB file and 0.1s reading a 10MB file, then how many times is the later transmission bandwidth by the former?

Options:

A.

40188 times

B.

1 time

C.

ten times

D.

100 times

Question 14

For snapshot , LUN copy and remote replication of storage array, which of the following statement is true? (Select 3 Answers)

Options:

A.

add resources LUN in resource pool, controller A and B both added and equal size, which is the best

B.

create LUN copy if confusing the source LUN and target LUN may result in data loss

C.

create remote copy if confusing the source LUN and target LUN may lead to the data unavailable

D.

if the space of the resource pools is insufficient, system will automatically use the residual capacity of safe space as a resource pool space

Question 15

In the same case of IO environment and disk type, which of the following description of RAID5/RAID10 Performance Comparison is wrong?

Options:

A.

Space utilization: Raid5 is obviously better than Raid10

B.

Security: Raid5 is lower than Raid10

C.

When read the business which belongs to large files, the performance of Raid5 is obviously better than Raid10

D.

When read the business belongs to the Radom small IO, Raid5 is the best choice

Question 16

For incremental LUN copy of storage array, which of the following is correct?

Options:

A.

it is real-time synchronization

B.

in the process of copy, target LUN can mount to use

C.

can be used in A-A backup mode

D.

the incremental LUN copy and LUN copy use public License

Question 17

For LUN copy function of storage array, the same LUN cannot be target LUN of multiple incremental LUN copy.

Options:

A.

True

B.

False

Question 18

Which of the following opinions about storage system boot failure or abnormal problem diagnosis are correct?

Options:

A.

After the system is powered on, the control box is not normal boot within 15 minutes (system status indicator has been flashing orange), you can preliminarily determine the system fail to power on.

B.

When storage system is powered on, ISM cannot login successfully, you can determine the system boot failurE.

C.

After the storage is powered on, the controller indicator light is red, you can determine the system boot failure

D.

After the system is powered on, login MML and executive sys status to check the system status.If the status of System Running Status is flash cache, you can determine the system boot failurE.

Question 19

Which does not belong to HostAgent component?

Options:

A.

HyperManager server

B.

InbandAgent

C.

ConsistentAgent

D.

HyperManager client

Question 20

The following which do not belong to the methods to improve the reliability of the data stored?

Options:

A.

component redundancy

B.

hot standby dis technology

C.

cache mirroring technology

D.

smart prefetching technique

Question 21

When HyperManager manage remote replication strategy, it can only manage synchronous remote replication.

Options:

A.

True

B.

False

Question 22

If the LUN on the storage array created the virtual snapshot, under the condition of the source LUN data is deleted by mistake, what method can be used to restore data? (Select 2 Answers)

Options:

A.

the snapshot of the source LUN rollback operation

B.

the snapshots of the source LUN map to host, recover it on the host side

C.

a snapshot of the source LUN activated operation

D.

a snapshot of the source LUN mirror operation

Question 23

Which of the following reasons will cause remote replication fault between arrays?

Options:

A.

the relegation of main LUN's RAID groups

B.

copy link failures

C.

there is insufficient space on the resource pool

D.

failure of the subordinate LUN's RAID group

Question 24

Host side report the failure of "IO error or IO timeout", which of the following aspects can

eliminate storage side issues? (Select three Answers)

Options:

A.

check storage RAID LUN statem, if it is normal

B.

check storage physical hard disk read and write state, if it is normal

C.

check FC or iSCSI link state, if it is normal

D.

login array user name and password

Question 25

Multipath install failure in Windows platform in the case of old version do not completely uninstall, which of the following method can solve the problem? (Select two Answers)

Options:

A.

delete the current setup of UltraPath for Windows, restart the host and reinstall.

B.

in the registry search 'UltraPath' registry key, delete the related key values of UltraPath in registry

C.

run Setup.exe in installation disk of SUPPORT\TOOLS, install reg.exe registry program

D.

The PATH variable value in system add "%SystemRoot%\system32; %SystemRoot%" and reinstall

Question 26

Which of the following command can check kernel version information in linux system?

Options:

A.

showname

B.

uname -a

C.

ls

D.

linux-release

Question 27

Compared with the traditional local storage and DAS storage, which of the following are main characteristics and advantages belong to modern new SAN array storage?(Select 3 Answers)

Options:

A.

Large capacity

B.

high performance

C.

good stability

D.

don't focus on scalability

Question 28

In read SCSI, the process of interaction of initiator and target is less than the writing process of interaction of initiator and target.Mainly in the process of writing, need to distributed cachE.

Options:

A.

True

B.

False

Question 29

LUN copy in storage array do not support copy a source of LUN to two goal LUN at the same time

Options:

A.

True

B.

False

Question 30

About the iSCSI protocol, which description of the following are right? (Select three Answers)

Options:

A.

iSCSI is based on IP protocol proposed by Microsoft technical standards

B.

iSCSI support users through its access IP SAN storage network

C.

iSCSI essence is SCSI commands and data transmission in IP frame format

D.

iSCSI protocol based on SCSI and TCP/IP

Question 31

When create copy of LUN, if the size of the source LUN is 500G, then the LUN of remote array capacity under the target can't be used for copy of LUN.(Select 2 Answers)

Options:

A.

300G

B.

400G

C.

500G

D.

600G

Question 32

In the Linux platform, the host connected to the storage array, which of the following statement is wrong?

Options:

A.

after add mapping to host in array, sweep plate operation must be conducted on host, to see the map

B.

connect between a host and the storage arrays by IP SAN, which must configure business IP for host

C.

connect between a host and the storage arrays by IP SAN, suggested that the iscsi initiator name of the different host changed to the same alias

D.

after sweep plate operation on the host, use command fdisk -l to see the mapping which does not distinguish between equipment and physical mapping

Question 33

Arbitration ring topology can extend the maximum number of equipment is ? (not include its node)?

Options:

A.

128

B.

127

C.

126

D.

infinite

Question 34

Two criteria based on SMI: CIM (Common Information Model) and WBEM (Web Based Enterprise Management)

Options:

A.

True

B.

False

Question 35

For asynchronous remote replication of storage array, which of the following limited number of the added subordinate LUN is correct?

Options:

A.

can add at most 1 subordinate LUN

B.

can add at most 2 subordinate LUN

C.

can add at most 4 subordinate LUN

D.

can add any subordinate LUN

Question 36

In the synchronous remote copy of storage array, if copy link break, will lead to the corresponding business interruption in host.

Options:

A.

True

B.

False

Question 37

Which of the following options does not belong to the component of SAS domain?

Options:

A.

SAS Expander

B.

SAS connection cable

C.

the server

D.

SAS terminal equipment

Question 38

OceanStor medium of hard disk storage system scan, by which method?

Options:

A.

read hard all sectors in order

B.

the use of hard disk built-in media scan function

C.

use third party software embedded controller

D.

independent development of new analysis software

Question 39

LUN copy S5000 incremental must interrupt host operations of reading and writing for the data of S5000 source LUN

Options:

A.

True

B.

False

Question 40

ATA to SATA is actually from serial to parallel shift.

Options:

A.

True

B.

False

Question 41

About IOMeter and Dynamo, which of the following statement is wrong?

Options:

A.

when install, test Windows system, need to install IOMeter and Dynamo of Windows version

B.

if test is Linux or AIX system, in addition to install IOMeter in control monitor of windows, also need to install corresponding version of Dynamo in test machine

C.

run IOMeter in Windows, automatically run Dynamo with IOMeter at the same directory

D.

start Dynamo, first start IOMeter main program, Stop Dynamo, as long as directly close Dynamo

Question 42

In storage array, what are the common faults in snapshot scheme? (Select three Answers)

Options:

A.

activate snapshots failure

B.

rollback snapshots failure

C.

virtual snapshot automatically stop

D.

delete snapshots failure

Question 43

For storage array products, which may cause the failure of Incremental LUN copy?(Select 2 Answers)

Options:

A.

the source LUN writing strategy write-through

B.

target LUN writes policy write-back not mirror

C.

link failures

D.

there is insufficient space on the resource pool

Question 44

The SCSI protocol communication is based on the initiator-target model, encapsulated SCSI of iSCSI protocol also inherit its initiator and target communication model.

Options:

A.

True

B.

False

Demo: 44 questions
Total 294 questions