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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

The LUN copy technology is on the basic of SERVER-FREE.

Options:

A.

True

B.

False

Question 2

Which component is responsible for connecting to the array to distribute in-band command in HostAgent?

Options:

A.

HyperManager server

B.

InbandAgent

C.

ConsistentAgent

D.

HyperManager client

Question 3

Because SAS is serial SCSI, therefore its transmission rate is usually lower than parallel SCSI.

Options:

A.

True

B.

False

Question 4

Configure snapshot on S5000, snapshot also occupy storage space, and take up the same size space with the source LUN.

Options:

A.

True

B.

False

Question 5

S5000 configure cache strategy, if use the write back mirroring.Because the mirror operation requires the interaction between two controllers, and the transmission of the datA. Therefore the overall performance is worse than write back mirroring.

Options:

A.

True

B.

False

Question 6

To improve performance, hot zone should be distributed in traditional hard disk inside as far as possible, because access data is fast in disk insidE.

Options:

A.

True

B.

False

Question 7

About iSCSI protocol implementation of three parts, which describe are right? (Select three

Answers)

Options:

A.

initiator Portal: provide connection iscsi storage device and ISCSI packet parsing and the driver of data reading and writing.

B.

Target Portal: iscsi storage devices, provide data storage services

C.

Portal: by IP address and port (default of iSCSI is TCP3260), through the Portal to provide connectivity and services

D.

initiator Portal: iscsi storage devices, provide data storage services

Question 8

Which of the following description of network product warning issued, obtain and process? (Select 3 Answers)

Options:

A.

warning information of product release in huawei's website - > service announcement - > warning notice

B.

product warning need engineers active learning, for the key issues that need to be tracking management, according to advice of early warning, make active treatment

C.

according to the emergency degree of product early warning, arrange rectification or the plan of upgrade, guard actively to the key problem

D.

early warning information need 400 hotline engineers to pay more attention, office engineers can don't pay any attention

Question 9

A single 1TB hard disk's performance is better than double disc with type of 1TB hard disk.

Options:

A.

True

B.

False

Question 10

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 11

.Which of the following options do not belong to the characteristics of SMI-S protocol?

Options:

A.

the standard interface, good interoperability

B.

Compare to SNMP, SMI-S function is more powerful, more complete

C.

data model of SMI-S is process-oriented

D.

if it supports SMI-S, the network integration of different vendors is convenient

Question 12

HP-UX does not need to be installed UltraPath multipath software additionally, which can be realized the function of multipath through the own pv-link of the system.

Options:

A.

True

B.

False

Question 13

After the failure of login storage system by ISM or SSH, the usual diagnosis way is: confirm the controller indicator light is normal, check management link physical state firstly, then check the IP address and management port, check the ISM version or SSH configuration, finally check whether ISM and ISM agent service can normally boot or not.

Options:

A.

True

B.

False

Question 14

Fail to Login S2600V1R5 storage system by ISM, so the management network port IP address can be connected with the management terminal IP address, which can normal login storage system through SSH, the state of showsys and showctrlinfo is normal, what are the possible failure cause?(Select 3 Answers)

Options:

A.

failure of the controller management port

B.

ISM client version is not compatible with the storage system

C.

ISM management port is limited in the network

D.

ISM Services did not start properly

Question 15

With AIX system, what command is to check whether the disk can identify normally? (Select 2 Answers)

Options:

A.

lspv

B.

format

C.

fdisk

D.

lsdev -Cc disk

Question 16

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 17

For the storage array products, which of the following reasons will cause full amount LUN copy fault? (Select 3 Answers)

Options:

A.

the source LUN failure

B.

target LUN failure

C.

link failures

D.

there is insufficient space on the resource pool

Question 18

About iozone and iometer, which are true? (Select two Answers)

Options:

A.

iometer support graphical configuration interface

B.

iometer is mainly used to test the performance of file system

C.

iozone can only use the command line configure interface

D.

iozone is mainly used to test the performance of block device

Question 19

In standard optical fiber environment, contains node, port, link and other components, which of

the following is true? (Select three Answers)

Options:

A.

node is refers to fiber optic equipment, such as servers, disk and etc

B.

each node at least one port, port provides external actual links, usually realize by server HBA card

C.

link is actual transmission medium, used to move information from one node to another node consists of a pair of optical fiber linE. A single fiber line is connected to a port of receiver, transmit information to optical fiber cable of this interfacE.

D.

a node only can have one port

Question 20

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 21

Under Linux platform, one of Multipath installation failure is the old version not completely uninstalled, which of the following methods can solve the problem?(Select 2 Answers)

Options:

A.

check whether multipath installation package format is correct, perform dos2unix XXX.rpm

Or to get the original format of multipath installation package

B.

the RPM database damage may occur, perform the rpm - rebuilddb, repair the RPM database, to execute queries or uninstall

C.

perform rpm - q UltraPath, check version of multipath installed, uninstall the old version of the multipath, execute the rpm -e UltraPath or execute the rpm - e - allmatches XXX.rpm, remove multipath related files, restart and re-install

D.

path uninstall may have abnormal issue which cause OS system cannot automatically clear multipath startup of /boot/grub/menu.lst file, edit the/boot/grub/menu.lst file, delete the multipath startup, after the restart, then re-install

Question 22

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 23

For S5000 and S2600 system, DB is configuration information in storage system, intraday record in the safe system, when power up, controller reads the DB. If there is a DB does not agree with other DB, storage will enter in safe mode, equipment can't normal use, need to synchronize the DB information.

Options:

A.

True

B.

False

Question 24

What respect affect random write IOPS from depth size of striping under RAID5?

Options:

A.

IO distribution

B.

read punishment

C.

number of member disk

D.

write punishment

Question 25

UltraPath is a drivers in host, work in physical HBA and file system

Options:

A.

True

B.

False

Question 26

The customer terminal system of ISM is responsible for the user interface display, processing the user's request, the discovery of equipment, data save and report process.

Options:

A.

True

B.

False

Question 27

Which function is not UltraPath multipath software supported?

Options:

A.

query version

B.

check IO of LUN

C.

scanning LUN

D.

the host switch

Question 28

In the video-on-demand business system, S5000 storage suggest the most appropriate Cache prefetching strategy is:

Options:

A.

fixed prefetching

B.

don't prefetching

C.

smart prefetching

D.

multiple prefetching

Question 29

what the limited number of add LUN from synchronous remote replication in storage array?

Options:

A.

most can add 1 subordinate LUN

B.

most can add 2 subordinate LUN

C.

most can add 4 subordinate LUN

D.

random add subordinate LUN

Question 30

Multi-path software failover and failback process apply transparent to the host, to avoid the path failure between the host and array which led to the suspension of IO.

Options:

A.

True

B.

False

Question 31

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 32

Which of the following statements of virtual snapshot of storage array is correct?

Options:

A.

the snapshot LUN is virtual LUN

B.

snapshot rollback once cannot be used again

C.

the snapshot is effective after creation

D.

snapshot support across the array

Question 33

Specify IP address ranges: according to the specified device management network ports IP addresses found the device, "start IP address" and "end IP address" refers to find the equipment IP address start and end points.

Options:

A.

True

B.

False

Question 34

HostAgent software consists of the following components: ConsistenAgent, InbandAgent and Hypermanager, the log of each component is usually in the log folder of software installation directory.

Options:

A.

True

B.

False

Question 35

Which of the following statements about the storage system boot failure or abnormal diagnosis methods are wrong?

Options:

A.

read db failed means equipment management started successfully, fail to read DB, need to check the safe hard disk and BD state

B.

storage S2600 S5000 V1R5 version and S5000TV1R1 series, check System error reason by ml > sys status, judge System boot failure reason

C.

master start DEV failed shows that start-up failure of equipment management, which shows the controller failure

D.

check failreason: dev is power on by mml>dev state, which shows that equipment management is starting

Question 36

Which of the following options does not belong to the hardware components of IP SAN?

Options:

A.

Ethernet connected devices

B.

iSCSI Host bus adapters

C.

Storage Device

D.

initiator Starter

Question 37

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 38

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 39

Under AIX platform, which of the following descriptions of host connected to the storage array are correct? (Select 3 Answers)

Options:

A.

for FC SAN, AIX platform still need to configure iscsi initiator software

B.

under AIX platform, the format of host computer configuring iscsi target must be: "targetName: array iscsi host port IP: targetName is iscsi device Name of queries on array

C.

for ISCSI connection, although the ISCSI have connected, if there is no operations for Lun of mapping in the host; in the array, the connected ISCSI port are invisible

D.

under AIX platform, a host and storage array connecting through the IP SAN must ping array iscsi host port IP on a host computer

Question 40

Which of the following maintenance tools are commonly used in storage array products? (Select 3 Answers)

Options:

A.

upgrade inspection tool

B.

host information collection tool

C.

checking tool

D.

maintenance assistant tool

Question 41

Which of the following HostAgent components need to restart the host after the installation is complete?

Options:

A.

HyperManager server

B.

InbandAgent

C.

ConsistentAgent

D.

HyperManager client

Question 42

What kind of Remote copy link in array can divided into according to the order of the controller? (Select 2 Answers)

Options:

A.

parallel link

B.

cross link

C.

FC link

D.

iSCSI link

Question 43

Which are the troubleshooting steps of fault diagnosis for iSCSi host link? (Select 3 Answers)

Options:

A.

check the indicator light of the host network ports, storage host port is normal or not

B.

checked whether there is any quality problem of network cable (replacement method)

C.

check the status of ISM interface iSCSI host port

D.

check whether the host can ping storage business IP and telent port is successful or not, such as Telnet IP 3620

Question 44

About HostAgent scheme, which of the following is wrong :

Options:

A.

HostAgent support oracle etc main database applications

B.

only support host application of Windows and Linux system

C.

HostAgent support graphical interface unified management and configuration

D.

HostAgent interface management support centralized management application servers

Demo: 44 questions
Total 294 questions