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H13-629_V2.0 Questions and Answers

Question # 6

Which documents must be read for an Oralce database normal start? (Multiple choice)

A.

Parameter file

B.

Control Documents

C.

archive log file

D.

Data files

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Question # 7

While migrating data to HUAWEI Storage, SmartVirtualization- and SmartMigration-based migration includes the following steps: a. Changing mappings for the source storage; b. Stopping services; c. Taking over the source storage; d. Migrating data; e. Recovering services and applications. Which sequence correctly describes an online migration procedure?

A.

acbde

B.

baced

C.

abcde

D.

eacbd

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Question # 8

One customer purchased two Huawei OceanStor 9000 storage devices and deployed them in A and B cities respectively and configured the InfoReplicator function. Regarding production site A data reliability, which of the following descriptions is wrong?

A.

Due to system upgrades, you need to make a master-slave switchover for the remote replication pair that has been created, and the following conditions need to be met:1. remote copy pair health status is normal, and the copy link is normal2. from the directory has been canceled write protection

B.

If the replication link is down, you can only modify the pair attribute in the cluster where the home directory of production site A resides. After the replication link is restored, the modifiedThe pair attribute is automatically updated to the production site from the directory

C.

Set the channel authentication IP address, which is the static front-end service IP address of any node in the remote cluster, and is used to establish a replication area channelConnection, this node must be in the copy area

D.

The channel authentication password can be modified. After the password is modified, if the copy link is disconnected, you need to manually re-enter the new password and keep the passwordThe password of the originating and receiving ends of the channel in the system is consistent so that the duplicated link can be recovered

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Question # 9

A client has 1100GB of data, including a backup window of 3 hours. The customer network uses GE networking. In order to meet customer backup requirements, you can only choose LAN free backup networking.

A.

True

B.

False

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Question # 10

An enterprise has purchased two sets of HUAWEI OceanStor 9000 devices. To ensure the security of the data, one set provides storage for the production site and the other set is on the disasterrecovery site to provide data redundancy. If the two Huawei Oceanstor 9000 storage system are to establish remote replication, which of the following is wrong?

A.

Recovery strategy supports both manual and automatic methods

B.

synchronization rates are high, medium and low third gear

C.

The type of synchronization is manual, the timing is started after the synchronization starts, and the timing is delayed after the synchronization is completed

D.

When the synchronization type is set to manual, there is noneed to set the timing durationIf the synchronization type is set to be either custom waiting when synchronization starts or when waiting for customization after synchronization, you need to set the timing duration

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Question # 11

In VMwarevirtualization environment, if the user wants to migrate a VM from one ESXi host to another with no downtime, (_) can be used for this; if the user wants to migrate virtual machine storage disk files to another storage array with no downtime, (_) can be used.

A.

vMotion, Storage DRS

B.

Storage vMotion, Storage DRS

C.

vMotion, HA

D.

vMotion, Storage vMotion

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Question # 12

Mainstream virtualization technologies include hardware virtualization (Hypervisors) and operating system virtualization (Containers). Which are key characteristics of hardware virtualization?

(Multiple Choice)

A.

Multiple VMs simultaneously run on a single physical server.

B.

VMs on the same server are isolated from each other.

C.

A VM encapsulates the entire system into one or more files.

D.

A VM on one server can run on another server without any modification.

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Question # 13

Which network connection is wrong for an OceanStor 18000 expansion network?

A.

B.

C.

D.

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Question # 14

In Huawei FusionSphere, which are typical application scenarios of the snapshot function?

(Multiple Choice)

A.

Data backup

B.

Data restoration

C.

Data copy

D.

Data deletion

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Question # 15

Which of the following statements regarding the Quota Tree file system quotafeature of OceanStor V3 is NOT correct? (multiple choice)

A.

Quota Tree can share through the agreement, and when it is being shared, it is not allowed to rename and delete.

B.

Can operate across Quota Tree's move files (NFS protocol) or cut files (CIFS protocol).

C.

A hard link between two different Quota Trees is allowed.

D.

No hard link between two different Quota Trees is allowed.

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Question # 16

The Oceanstro 18000 hosts the VDI service with 20% and 80% of the front-end load read and write workload respectively, which requires 20000 IOPS for the business.

Choose 10K RPM SAShard disk (assuming the average time to find 3ms) using RAID5. In this scenario, the minimum storage system hard drive configuration required is:

A.

600

B.

408

C.

387

D.

550

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Question # 17

Which if the following is correct regarding the Huawei Oceanstor unified storage system multi-planar system design?

A.

The service plane uses GE channels for data transmission

B.

The service plane connects the host IO channel, disk IO channel and GE switch

C.

Plane redundancy between each other, when the business plane fails, allowing the use of control plane transmission of business data

D.

When the GE switching channel is faulty, the PCIe switching channel can be used as the backup data transmission channel

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Question # 18

In the N8500 (V200R001) clustered NAS system, when the created file system is used for applications accessing large files sequentially, which of the following is correct?

A.

In order to allow clients to access a single file system, N8000 can provide higher bandwidth and capacity, it is recommended to create a striped file system

B.

Large file access business is a large IO sequential read and write, choose a smaller size of the strip and block size to provide higher bandwidth

C.

From a performance perspective, it is recommended that the total number of files in a single file system be less than 80 million

D.

For reliability, the recommendednumber of file systems is less than 40

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Question # 19

What kind of technology in an active-active disaster recovery solution can realize the traffic distribution between servers in different regions on the wide area network(including the Internet), keeping access quality with the best server from your nearest customer?

A.

GSLB

B.

VIP

C.

SLB

D.

GLB

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Question # 20

Which description of the the OceanStor V3 file system snapshot feature is wrong?

A.

In File System Snapshot when you create a snapshot, you simply copy the root of the file system and save it toform a snapshot of the file system.

B.

Deletion Snapshots use a mechanism for reclaiming space, so snapshot data space is immediately freed after snapshots have been deleted.

C.

After creating a snapshot in the File System, as the main file system is continuously updated, the original data block will gradually become the space occupied by this quick debt. However, a newly written data will not be included in the snapshot space.

D.

File system snapshot data can not be deleted directly, and only after thesnapshot has been deleted, this part of the space can be released.

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Question # 21

OceanStor V3 does not start up normally within 15 minutes after the system ispowered on. What can you use to log in to the storage system in order to locate this fault? (Multiple choice.)

A.

Sys status view system status

B.

Through the dev status view system status

C.

Through the dev status view device management started

D.

Through dev status view device management started

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Question # 22

Which of the following description of the storage protocol is correct? (Multiple choice.)

A.

FC InfiniBand SAS PCI-edouble can be a carrier of the SCSI protocol

B.

InfiniBandTransmission Speed "FC Transmission Speed" iSCSI transmission speed

C.

FCoE technology for GE and 10GE Ethernet

D.

FCoE SAS InfiniBand has its own switch product

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Question # 23

Which of the following description of the application of NDMP backup on the OceanStor 9000 V100R001C30 is wrong?

A.

Does not support the system disk backup and recovery operations

B.

When enabling the snapshot-based backup mode, the NDMP backupfeature requires the file system to support snapshots. Otherwise, the backup task can not be successfully performed.

C.

Based on the snapshot backup, snapshots are created for the current directory. Because the extended attributes of the current directoryreceive the snapshot protection, the current directory extended attributes will be backed up.

D.

Does not support the system time zone or other time-related adjustments, does not support daylight saving time.

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Question # 24

OceanStor V 3 storage SmartPatition can allocateindependent cache space for different LUNs. The capacity of the cache space is read and write.

use.

A.

Correct

B.

mistakes

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Question # 25

When you install the Simpana backup client on a virtual machine and perform a backup, the backup job status becomes pending and reports an error message "Cannot decode packet header: invalid start signature ", which of the following may be the cause of this problem?

A.

VM NIC adapter error

B.

The media server backup service is abnormal

C.

The backup client service is abnormal

D.

Virtual machine disk class behavior IDE

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Question # 26

What is the correct description of the Huawei Oceanstor 9000 read and write process?

A.

The CA is responsible for initiating the metadata query

B.

If the global cache read hit, read from theglobal cache without having to go to the OBS to read the stripe data

C.

Reading data, the MDS is responsible for assembling the slitting data

D.

When writing data, calculate the redundant data by MDS

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Question # 27

When theoracle database is in an open state, which of the following is the correct oracle database recovery action?

A.

Restore the entire data file

B.

roll back to the Council before crying to a certain point in time

C.

Recovery control file

D.

open state cannot be restored action

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Question # 28

A customer's production network resources are tight, and the budget is small. Thecurrent customer wants to introduce a backup solution in the existing configuration. Based on this, what is the recommended networking backup method is most appropriate for this customer?

A.

lan-base

B.

lan-free

C.

server free

D.

server base

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Question # 29

True or False, during the disaster recovery drill, toyou want to switch the service to the disaster recovery end. In order to prove the reliability of the disaster recovery system, you need to test by simul-ation test and other means as much as possible.

A.

True

B.

False

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Question # 30

Using Simpana to backup five 10g data files where thesub-client sets the backup stream to 8, the administrator can increase the backup stream to improve backup performance.

A.

True

B.

False

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Question # 31

Which of the following is incorrect regarding the VTL6900 data deduplication featuree?

A.

TheSIR cluster of the VTL6900 supports global deduplication

B.

The deduplication start time of the VTL6900 can be controlled automatically according to the policy

C.

VTL6900 on the specified tape deduplication and remote replication is recommended at the sametime

D.

VTL6900 deduplicated tape to do data archiving, the physical tape library in the NC is still non-deduplicated data

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Question # 32

What is the error in the Oracle ASM description?

A.

ASM directly manages the hard disk, not the files, the files are evenly distributed across all the disks.

B.

ASM instance SGA includes buffer pool share pool larger pool and so on.

C.

ASM instances can be synchronized and data instances started and synchronized, and must be closed later than the database instance.

D.

ASM is an oracle-based storage solution similar to RDMS, consisting of instances and files, maintained by the sql plus tool.

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Question # 33

When Replication Director creates a protection group to protect LUNs, you can see that there is no LUN on the interface. Which of the following may be the cause?

A.

There is a problem with the storage initiator configuration.

B.

There is a problem with the storage LUN configuration.

C.

There is a problem with the RD software configuration.

D.

There is a problem with the remote replication configuration.

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Question # 34

Huawei two nodes Standard Edition N8500, opened the CIFS service. Which of the following CIFS parameters prevents users from seeing other users in the table of Contents?

A.

oplock

B.

noguest

C.

fs-mode

D.

hide-unreadable

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Question # 35

Which of the following are Oracle11g logical backup methods?

(Multiple choice)

A.

EXP

B.

RMAN

C.

EXPdp

D.

imp

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Question # 36

Customers need to create a new Oracle database server Huawei RH5885. V2 32 nuclear CPU, the host using Redhat6.4 operating system, the text system is EXT4, the storage device Oceanstor V3, the I SAS disk and 8D + 1P RAID5 are configured to guide one million data batch. Which of the following methods can improve the import performance into the new database? (Multiple choice.)

A.

Modify the value of DB-WRITER-PROCESSES.

B.

Redhat system default CFQ algorithm on the database business efficiency is not high, should be adjusted to noop algorithm.

C.

Oracle database FILESYSTEMIO-OPTIONS parameter can be set to Asynch, and the file system log off.

D.

Modify Oracle's DB-BLOCK-SIZE parameters.

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Question # 37

Which of the following best practice descriptions of Oralce database is correct? (Multiple choice.)

A.

OLAP business query output is usually astatistical value (using group by with order by), so you can set a larger SGA-target value (relative to OLTP).

B.

It is recommended to use UDEV UUID and drive letter binding, in Linux environment configuration Oracle database, to avoid subsequent maintenance letter changes caused by the database which can not start.

C.

If the database OLTP business log write is very frequent, it is recommended that the appropriate online log file up, but it is recommended not to exceed 128MB.

D.

In Windows2008 or windows2012 operating system environment, in order to improve I / O processing efficiency, MBR partition is created, and diskpart command is recommended to set the partition alignment.

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Question # 38

Assuming a customer's initial backup capacity of 1TB, theaverage daily data increment of 10G, with a backup strategy of once a week for all the equipment once a day from Tuesday to Sunday.

All reserve and additional backup data are stored for 4 weeks, regardless of deduplication / redundancy ratio / replication,etc. Calculate the required back-end.

The capacity should not be less than ______. This 1TB is calculated according to 1000G.

A.

4940G

B.

4280G

C.

5940G

D.

5280G

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Question # 39

Database applications are one of the important applications supporting storage arrays.

Differentapplication configurations and parameter settings may affect the service performance. In order to store arrays (such as OceanStor V3 series storage) with SQL server applications with the best performance, which of the following statements is wrong:

A.

OLTP database generally have a large number of random write, it is recommended to choose RAID 10 to store data.

B.

In order to improve write performance, all SQL server database data stored in the LUN write strategy is configured to "write back the image".

C.

Because the size of the SQL server page is 8K, in order to ensure the best performance of the database, NTFS allocated block size should not be less than 8KB.

D.

SQL Server database instance memory size and recovery mode of choice has no effect on the performance of the database.

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Question # 40

Which of the following feature is correct about the OceanStor V3 volume mirroring? (Multiple choice.)

A.

After creating a mirrored volume for a normal LUN, the server read-write IO results in a change as a result of internal information exchange.

B.

The amount of data actually stored on a LUN is 2G, thetotal copy of the data is 4G. A volume image is created for the LUN, the LUN is mirrored when the copy is generated during system creation.

C.

You can configure a volume mirror for external LUNs or configure external LUNs as mirror copies.

D.

Whenconfiguring volume mirroring, mirror copies are required from different disk domains.

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Question # 41

Which technology enhances the performance of the Huawei OceanStor 9000 application? (Multiple choice.)

A.

Support for SMB3 multichannel features that take full advantage of client-side multi-core CPUs and bandwidth resources to dramatically improve performance.

B.

When a hard drive has multiple objects at the same time to write requests, support merged into a large continuous IO, significantly improve system performance.

C.

Internal file system replication, without having to go through the client directly in the system to complete high-speed

D.

Supports 10GE and PCIE networking, providing high performance through high-speed inter-node interconnection and reducing system internal delay.

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Question # 42

Huawei Standard Edition N8500 has two nodes named Pubeth1 and Pubeth4. It opened the NFS service. NFS server accepts recovery after NFS guest.

However, the client mount point can not be accessed into the directory for a long time without echo. What do you need to do to fix it?

A.

Restart the NFS server of the N8500

B.

Restart the client's NFS service

C.

Reseat the NFS client network cable

D.

Forcibly unmount the NFS client mount point and mount it again

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Question # 43

During the migration of SANstorage by LVM from AIX, the data migration designer is in a very important stage. Prior to accessing new devices, there are a number of issues that needs to be considered to help with data migration design, including: (Multiple choice.)

A.

This device can not / should not be connected to an existing SAN.

B.

AIX system how to connect to the new storage device.

C.

How AIX systems and data can be migrated from the old disk to the new disk.

D.

The format of the file system, whether the file group is compatible with the new device volume.

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Question # 44

In the simpana-based backup solution, where can you the normal service log?

A.

CVMA. log

B.

CVNetcheck. log

C.

CVService. log

D.

CVD. Log

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Question # 45

Disaster recovery project information research mainly includes information about who, what, and why. What is the followinginformation background? (multiple choice)

A.

A bank has more than XX customers and XX corporate customers.

B.

Data loss will be huge and business disruption may result in significant financial loss.

C.

Business interruption has a huge impact, and the interruption time in business deployment is less than 2 hours.

D.

Clients want to build two live-action data centers in the same city to realize the key business activities such as RTO 2.

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Question # 46

In the OceanStor 18000 storage system, a 15K RPM SAS disk is used. Assuming that the average seek latency of this type of disk is 6 ms. which type of disk can provide a singledisk IOPS?

A.

100

B.

150

C.

125

D.

167

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Question # 47

The iSCSI protocol is mapped on the TCP protocol. For a TCP encapsulation of the iSCSI protocol packet, which of the following parts are not included?

A.

TCP Header

B.

IP Header

C.

ISCSI Header

D.

ISCSI data

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Question # 48

A N8500 (V200R001) clustered NAS system with a set of storage units at the back end. Three RAID Groups, respectively named RG1, RG2, RG3 have been created on the storage unit. There are two LUNs under each RAID group, the capacity of each LUN is 12G.

The names are RG1-LUN1, RG1-LUN2, RG2-LUN1,RG2-LUN2, RG3-LUN1, RG3-LUN2, and all LUNs are added to one in storage pool. The purpose is to create a file system based on these LUNs. What of the following will certainly create a failure?

A.

fs create striped fs01 10g 3 RG1-LUN1, RG2-LUN1, RG3-LUN1 stripeunit = 2048 blksize = 8192

B.

fs create mirrored fs02 10g 2 RG1-LUN2, RG2-LUN2 stripeunit = 2048 blksize = 8192

C.

fs create mirrored-stripe fs03 10g 2 2 RG1-LUn1, RG2-LUN1 protection = disk stripeunit = 2048 blksize = 8192

D.

fs create striped-miiro fs04 20g 2 3 RG1-LUn1, RG1-LUN2, RG2-LUN1, RG2-LUN2, RG3-LUN1, RG3-LUN2 protection = disk stripeunit = 512 blksize = 1024

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Question # 49

Which of the following IO model characteristics belong to random small IO? (Multiple choice.)

A.

OLTP

B.

OLAP

C.

VDI

D.

SPC-1

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Question # 50

You want to partition a hard disk on a Windows Server 2008 R2 system, which of the following should you do?

A.

Create a 2TB NTFS volume, the default sector (cluster) size is 8KB.

B.

Create a 30GB FAT32 volume, the default sector (cluster) size is 8KB.

C.

NTFS volumes can be set to the largest sector (cluster) to 512KB.

D.

The smallest sector (cluster) that an NTFS volume can set is 4KB.

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Question # 51

Which ofthe following is correct about Huawei OceanStor v3 unified storage system? (Multiple choice.)

A.

Standalone SAN engine and stand-alone file engine

B.

Parallel dual-stack by way of parallel support (SAN) and file system (NAS)

C.

Use unified storage pool technology

D.

file system can achieve deduplication data compression function

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Question # 52

What are the ways of load balancing cluster softwar on Oracle rac? (Multiple choice.)

A.

ClientBalance

B.

Cluster nodes balanced

C.

Service layer balance

D.

Instance load

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Question # 53

True or False, the disaster recovery plan ofHuawei means that when the production site fails, the production business is automatically switched to run the disaster recovery site.

A.

True

B.

False

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Question # 54

True or False, Info Replicator supports copying the data at the same time. The basic attributes of the home directory, extended attributes, ACL (access control list).

WORM (write-once-read-many) and CIFS / NFS share configuration information is known as a wealth island from the end. When a disaster occurs, master and slave sites can quickly take over the business after the switch.

A.

True

B.

False

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