H13-611_V4.5 HCIA-Storage V4.5 Questions and Answers
The SCSI protocol is the basic protocol for host and disk communication. It is operated by the SCSI controller, the controller is equivalent
For a small CPU, it has its own command set and cache.
The FCoE protocol refers to encapsulating the FC protocol into a TCP/IP protocol package and transmitting it on Ethernet.
The number of erasable times of the storage medium cell of the SSD disk is limited. Multiple erasing causes the wear of the SSD, which also makes the SSD
Has a limited period of use, which is related to the number of specific erasures.
A, yes
B, wrong
A government unit adopts Huawei’s two-site, three-center solution for disaster recovery construction, and its business is mainly concentrated from 8:00 to 18:00.
What is wrong with the following approach?
The following description of NAS is correct:
Description 1: NAS is always based on file sharing.
Description 2: The distance of the network connection affects the performance of the NAS.
A, Description 1 and Description 2 are correct.
B. Description 1 is correct, description 2 is incorrect
C. Description 1 is wrong, description 2 is correct
D, description 1 and description 2 are wrong
A company is mainly used for file system sharing in Linux, UNIX, Mac OS and VMware operating system environments.
Which of the following file access protocols is suitable for this company?
When UltraPath is installed on the application server, the operating system can automatically identify the LUN mapped to the host, and
There is no need to restart the host.
In the HUAWEI OceanStor storage system, which of the following descriptions about SmartThin LUN is correct?
Description 1: The file system of the NAS is managed by a storage or server that provides resources.
Description 2: The file system of the SAN is managed by the host itself.
For a system with high business continuity to find that, the characteristics of RPO and RTO values should be:
A, RPO is higher, RTO is lower
B. RPO is lower, RTO is higher
C, RPO and RTO are lower
D, RPO and RTO are higher
The difference between DAS and SAN, which of the following descriptions is wrong?
What are the maintenance items of the data center storage administrator? (Multiple choices)
iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.
What value does thin provisioning technology bring to customers? (Multiple choice)
The advantages and disadvantages of the disaster recovery technology of the host layer, network layer and array layer, the following statement is correct? (Multiple choice)
A company uses the CIFS protocol for file sharing, and uses the Homedir sharing method according to the security policy.
All users access the folder and write space.
The QoS of the file system supports IO priority configuration and policy configuration.
In HUAWEI OceanStor, which of the following are characteristics of virtual snapshot LUN?
(Multiple Choice)
A backup set is a group of data that is backed up in a batch. A backup set can be used for either full backup or incremental backup.
Based on the new industrial revolution, what are the changes in the trend of ICT? (Multiple Choice)
What is the main difference between desktop grade hard drives with enterprise grade hard drives which is the deciding factor in hard drive usage?
When the RPO is minutes instead of hours the best backup method is traditional Tape backup.
Match the RAID level with the characteristics. (1) RAID 0 (2) RAID 5 (3) RAID 10 (4) RAID 6 (a) Cost effective (b) Allows double disk failure (c) Highest performance (d) No data protection
In a Red Hat Linux 5 operating system, which command is used to mount the sdb5 in the dev directory to the sdb5 in the mnt directory?
A bank will launch a business system, which has very high performance and security requirements, and the database uses Oracle data
Database and plan to deploy the Oracle database to a storage system, then create a RAID group for the Oracle database
At this time, the optimal RAID strategy should be:
An Internet company plans to purchase a storage device to store archived service data and online transaction data. SSDs are expensive and HDDs cannot meet the performance requirements of online services. Which features CANNOT solve this problem? (Select All that Apply)
Create a Thin LUN on HUAWEI OceanStor with a capacity of 100G and an initial allocated capacity of 10G, then
After mapping this LUN to the Windows 2012 host, the corresponding disk scanned on the host, the disk shows
The capacity should be 10G.
If a company’s business is to write large-scale data randomly into the LUN, which capacity initial allocation strategy and which
Kind of data migration strategy?
SCSI communication is initiated by the initiator and received and processed by the target. When the host and the storage device communicate, the storage device
The side assumes the role of initiator.
With the advent of the era of big data, the corresponding storage technology is also undergoing changes.
Is the following statement correct? (Multiple choice)
In Huawei RAID 2.0+, when the hot standby strategy of a storage tier is low, the following is about the hot standby reserved by the system for that tier
The capacity description of the space, what is wrong?
OceanStor 5300 V3 is a dual-controller converged storage product, which must ensure the working controller and attribution control of the LUN
The controller is consistent.
In a Linux system, if the representation of a SCSI target is: 2:1:0:3, the following description is correct: (this question For multiple choice questions)
In the FC protocol, which of the following layers is responsible for encoding and decoding?
A, FC-0
B, FC-1
C, FC-2
D, FC-3
What are the common time indicators for measuring the reliability of a system? (Multiple choice)
A, reliability
B. Effective
C. Average failure time
D. Mean time between failures
A customer needs zoning configured in a Fibre Channel switch. The customer frequently changes the patch points in the infrastructure. What zoning method is preferred then?
Grid storage employs the combination of large scale serial distributed storage to provide even distribution of storage across all nodes.
In Windows 2012 deleting data from a volume, based on a Thin LUN, means that NO storage space will be reclaimed by the HUAWEI OceanStor,.
Select the correct statements that describes the properties of Distributed Object Storage
Architecture.
(Multiple Choice)
Select the correct statements that describes the properties of bus technology in ICT architecture. (Choose all that apply.)
Storage array is a network device used to switching network signals or data. It can provide a dedicated communication channel between any 2 nodes in the network that is connected.
SAS uses a point-to-point connection design to enable a dedicated link to be established between two devices in the communication.
In which layer in the architecture of a typical Big Data processing system does the data mining and business intelligence process are performed?
Which device allows segregation of collision domains but not broadcasting domains?
The failure of an SSD is more predictable than that of other disk technologies.
A company belongs to the field of banking and finance, with a large amount of business data and high security requirements. What kind of RAID is suitable for this company?
level?
Which of the following are correct steps in a LAN based backup job?
(Multiple Choice)
Which ports in the FC switch can communicate with each other is determined by the zone.
When configuring Thin LUN, not all configured storage space is allocated upon creation. The storage space for Thin LUN will only be allocated when it is used.
The following description of DAS is incorrect:
A, DAS is directly connected to the designated storage device on the server using them
B, DAS is divided into internal DAS and external DAS
C. The hard disk inside the server is not DAS
D. External DAS can be connected to the server accessing them through FC protocol or SCSI protocol
What is required to add additional controllers to an existing HUAWEI OceanStor system?
A bank purchases a new storage device. During the RAID level configuration, the bank requires that data reliability be improved and parity data be stored on different disks. Which RAID levels can meet the requirements? (Select All that Apply)
Which is the correct order for evolution of mid-range storage architectures?
1) Fixed storage system configuration
2) Dual-controller active-active redundancy configuration
3) Flexible hardware component configuration
4) Flexible software function configuration
Which statements are true about a dual-controller storage system? (Select All that Apply)
Incremental backups must rely on the last full backup and the last incremental backup to perform data recovery
Complete recovery, data reconstruction during recovery is slower than full backup, and recovery window is larger.
You need to manually set free disks as hot spare disks in a HUAWEI OceanStor storage system when you use RAID 2.0+.
The SCSI protocol can be used not only for communication between the host and the disk, but also for communication between the host and the physical tape library, optical disc, and so on.
Which of the following is the common physical size division of the surface of the hard disk?
(Multiple Choice)
When the RTO requirement is within 10 minutes, the traditional tape backup method is not recommended.
Huawei OceanStor hybrid flash storage is used as an example. Which statements are true about IP address failover? (Select All that Apply)
Suppose, for cost control reasons, a startup company can acquire only one storage device to provide services. However, its services require high hardware reliability, so an engineer recommended a Huawei OceanStor all-flash storage system. Which statements describe the high reliability of the storage system? (Select All that Apply)
An engineer maps the storage system to the file server to store various enterprise files. One day, the file system is attacked by viruses and files cannot be opened. To access the files, the engineer performs a snapshot rollback. Which statement is FALSE?
Deduplication is a data reduction technology that compresses large-size data blocks to reduce the physical storage capacity for storing data, thereby meeting increasing storage capacity requirements.
Fibre Channel is a dedicated protocol used in enterprise-level SAN networks for communication between hosts and storage devices or between storage devices. It features high transmission efficiency, long transmission distance, and high security and reliability.
A company purchases storage devices for new services. The new services do not require high access speed of storage devices. In this scenario, the IP SAN can be used for networking deployment.
Which of the following describes the file access protocol correctly? (Multiple choice)
What is the correct sequence of the overall reconstruction process?
1. Query all CKGs with CK falling on the faulty disk
2. Assign hot spare CK to all these CKGs
3. Update CKG information and release the reconstructed CK
4. Write the reconstructed data to the hot standby CK
5. Through the RAID algorithm, calculate the data on the failed disk based on the data on the normal disk and the check disk
The following are the characteristics of the clustered NAS storage architecture: (multiple choice)
Which of the following are the data transmission rates that can be configured on the FC ports on the FC switch in FC SAN given that your cable and SFP supports it? (Select All that Apply)
Which statements are true about the ports of a Huawei OceanStor all-flash storage device? (Select All that Apply)
Which of the following RAID levels has the lowest hard disk space utilization?
During data center construction, a media company purchased storage devices from multiple vendors. The CTO wants to centrally manage these devices through storage virtualization. Which function is NOT provided by storage virtualization?
Which of the following best describes the relationship between the storage and host in DAS?
If a disk is faulty, what is the process of recovering data on the faulty disk?
SmartKit is an O & M tool that integrates cloud computing, server, and storage. It cannot be used to monitor third-party devices.
As the new storage administrator, you are tasked with the procurement of a new batch of SSD drives to replace the older drives that has reached the end of life. You have the option of SLC, MLC and TLC SSD. Which of the following will be your choice with a limited budget and medium level of reliability concerns? (Select All that Apply)
In order to make full use of storage resources, on which tier are SSDs usually configured in a tiered storage system?
Because they are cheap and still have a large capacity we can say that cMLC Solid State Disks are ideal for storing MP3 files and JPGs at home.
Many companies gather so much data that they cannot extract the right information from the data,
Statement 1: An ICT infrastructure should be built with high end equipment and be located in one site.
Statement 2: A server is a rackmounted enterprise version of a desktop computer and typically has more than one hard disk installed.
Which of the following is the end that receives and processes the SCSI commands?
Which of the following is a valid iSCSI name that can be used to set up the iSCSI connection between the initiator and target? (Multiple Choice)
Statement 1: A disk drive with a high latency performs better than a disk drive with a low latency. Statement 2: A smaller seek time means that the disk performs better.
What is the synchronization cycle time limit for asynchronous remote replication?
After the multi-path software is installed on the host, which of the following descriptions are correct? (Multiple choice)
A, LUN is automatically mapped to the host
B. Assist the operating system to access the same LUN through multiple links to avoid logical errors
C. Improve link reliability and prevent single link failure, thereby avoiding system failure
D. Establish a SCSI connection between the host and the storage device
In a traditional RAID group, when a certain number of hard drives fail, the entire RAID group can prevent data loss, and
The data recovery process has not been started. What is the status?
The NAS device performs functions such as file service, storage, retrieval, and file access on the basis of a general-purpose server
optimization.
In the LAN-Base networking, both the service flow and the data flow take the LAN network, and occupy a large bandwidth.
Among the components of the mechanical disk, the parts responsible for reading and writing data are:
Description 1: There is an interconnection line between the controllers of the storage system. If the controller is broken, it belongs to it.
The working controller of the managed LUN will be switched to a working controller.
Description 2: The working controller and home controller of a LUN must be unified into one controller.
When the Windows copy program copies local files to the file system, the file system block size of the HUAWEI OceanStor storage system is the default, which ensures the full use of storage space.
A, right B, wrong answer: B
The SmartCache feature in HUAWEI OceanStor series products can only improve read performance, not write performance.
The multipath load balancing strategy used by HUAWEI OceanStor storage products is the default?
Extent of RAID2.0+ technology is the basic unit of which technology in the storage pool? (Multiple choice)
What are the following types of disaster recovery at the host layer? (Multiple choice)
In the Huawei storage system using RAID2.0+ technology, regarding the difference between Thick LUN and Thin LUN, the following
Which description is correct? (Multiple choices)
Description 1: A RAID consisting of several hard disks is called a physical volume.
Description 2: RAID 5 can improve the read and write rate and provide a certain degree of data security, but when there is a single hard disk failure
At this time, read and write performance will be greatly reduced.
What conditions should be considered for device backup bandwidth? (Multiple choice)
A, the size of the initial data
B. The daily quantity increment
C. Backup cycle
D. Backup staff
Which of the following is the correct configuration process for HUAWEI OceanStor storage system?
From the perspective of the cloud computing business model, Huawei network disks belong to PaaS.
The data center is an infrastructure built for accessing and carrying server services. According to the business, the data center can be
Divided into: (multiple choices)
Description 1: When Windows mounts a CIFS share with the same IP address (domain name or machine name), the same user can
You can mount one or more shares at the same time, but you cannot use different users to mount the same or different shares.
Description 2: Windows cannot share multiple Homedir shares with the same IP address (domain name or machine name)
The user mounts multiple shares.
In Huawei storage systems that use RAID 2.0+ technology, a hard disk domain can only contain one type of hard disk.
A host connected to a switch port cannot belong to multiple zones, but can only be divided into a zone
in.
When deploying random small IO-based database services on storage, which RAID type should be appropriate? for
what?
What is the description of file-level HyperSnap feature data recovery in HUAWEI OceanStor storage system, which
Are these correct? (Multiple choice)
What kind of technology does the OceanStor 5300 V3 expansion controller belong to?
In the HUAWEI OceanStor storage system, which of the following descriptions about mapping snapshot LUNs is correct?
Use the CIFS protocol to access the share. When the share name and the user name are the same, the shared order of access is:
Xiao Wang, an employee of a small business, accessed the CIFS protocol on a Linux application server supported by his company ' s storage system
Ask about shared files.
Is the following description about Quota tree correct?
A, Quota tree is a first-level directory under the file system
B. Only administrators can create, delete, rename, etc. through the command line or GUI management interface.
Users can delete the empty Quota tree
C, Quota tree can be renamed and deleted when sharing through agreement
D. Ordinary users can perform quota management on the number or capacity of files under Quota Tree
A reliable ICT infrastructure, to avoid a single point of equipment failure, or even a single point of personnel problems.
Among the following options, what is the correct sequence of the basic business configuration process for data center block storage?
1. Create a mapping view. 2. Create a storage pool. 3. Create a hard disk domain. 4. Create a LUN and create a LUN group. 5.
Create a host group. 6. Log in to DeviceManager
A, 6- > 2- > 3- > 4- > 5- > 1
B, 6- > 3- > 2- > 4- > 5- > 1
C, 3- > 2- > 4- > 5- > 1- > 6
D, 4- > 5- > 2- > 3- > 1- > 6
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