The FCoE protocol refers to encapsulating the FC protocol into a TCP/IP protocol package and transmitting it on Ethernet.
Description 1: The LUN is composed of multiple Extents in the storage pool.
Description 2: The LUN can contain one or more types of Extent.
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.
Regarding HUAWEI OceanStor storage dynamic tiered storage technology, which of the following descriptions is incorrect?
What are the following descriptions of the three iSCSI connection methods?
The cloud data center virtualizes storage, computing and network resources, and provides a virtualization platform for users to use.
Is the following statement correct?
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.
The following description is correct: (multiple choice)
What is wrong about the relationship between FC protocol and SCSI protocol?
The steps of asynchronous remote replication multi-point technology, is the following statement correct?
(1) A new time slice (T2, P2) is generated in the cache of the master LUN and the slave LUN at the start of each replication cycle
(2) The newly written data of the host is cached in the time slice T2 of the main LUN Cache, responding to the completion of the host
(3) The master and slave LUNs each release the received data
(4) Copy the data of time slice T1 directly to the slave LUN and write it to the time slice P2 of the slave LUN
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?
What are the application scenarios of the SAN solution? (Multiple choice)
According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)
Which of the following operations does a small employee A of a bank need to do in the first maintenance project of data center storage?
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
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
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)
Bank's bill imaging system often stores structured data on a SAN array, and unstructured data
On the NAS array.
The x86 architecture is a type of data center infrastructure.
In Huawei storage systems that use RAID 2.0+ technology, a hard disk domain can only contain one type of hard disk.
Which of the following is the correct configuration process for HUAWEI OceanStor storage system?
Users of a company can automatically report the alarm of the storage device connected to it to the Huawei Service Support Center through a management software. Excuse me, what software is this user using?
The cloudification of IT architecture is from "separation" to "convergence". What does convergence mean?
Regarding the steps of SAN synchronous replication, what is the correct order?
(1) The production storage receives the host write request. HyperReplication logs the request. Only the place is recorded in the log
Address information, without recording data content.
(2) HyperReplication waits for both the primary LUN and secondary LUN write processing results to be returned. If both are written successfully, clear
Log; otherwise keep the log, enter the abnormal disconnection state, and then copy the corresponding number of the log address again when starting synchronization
According to the block.
(3) Write the request to the master LUN and slave LUN. Normally, the LUN is in the write-back state, and the data will be written
Cache.
(4) Return the processing result of the host write request, which is subject to the processing result of the write master LUN.
An enterprise adopts cloud-level primary and backup data-level disaster tolerance. During business planning, two types of storage can be divided according to actual needs.
LUN: Protected LUN and unprotected LUN, create VMs that need disaster recovery on the protected LUN, and configure only the protected LUN
Set up array replication to save the storage space requirements of the disaster recovery center.
The following are the advantages of SSD hard drives compared with mechanical hard drives. The description is correct: (multiple choices)
What are the following errors about OceanStor V3 features?
What are the characteristics of big data? (Multiple choice)
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.
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)
In the following backup media, the order of unit capacity price from low to high is:
The dual switch network design is widely used in the FC SAN environment. The following description of the dual switch network redundancy design,
Which ones are correct? (Multiple choice)
Which of the following statements about RAID 5 and RAID 10 are correct?
LAN Free and Server Free are backup networking methods that have little impact on host performance.
CKG is composed of multiple CKs on different hard disks of different types in the hard disk domain.
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
OceanStor V3 series storage can only support iSCSI or FC host links separately, not both
Connect to the network.
What is the infrastructure of the data center? (Multiple choice)
If an enterprise is backing up data, the data flow does not go through the production server, but through an independent network
Transmission, what kind of backup network is used for this kind of backup?
In Huawei storage systems, which feature can be used to periodically detect and migrate hot data from the capacity tier to the high-performance tier?
The following describes RAID 10, which are correct? (Multiple choice)
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)
The RTO in the disaster recovery system measurement index refers to the point in time when the system and data must be recovered after the disaster begging.
The following two descriptions are correct:
Description 1: Synchronous remote replication, when the primary storage fails, the amount of data lost can be 0.
Description 2: When the host is a Linux-based file system, asynchronous remote replication must be used.
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)
What is the function of hot spare in storage?
The storage system compresses data based on the user-defined compression policy. Which compression policies are supported by Huawei storage systems? (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?
When the RTO requirement is within 10 minutes, the traditional tape backup method is not recommended.
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.
Which statements are true about HyperMetro? (Select All that Apply)
A snapshot is a point-in-time copy of the source data that serves as a data backup accessible to hosts.
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)
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.
If a disk domain has multiple disk types, the storage pools in that disk domain MUST have multiple disk types in them.
FTP is a very secure protocol with no security risks.
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.
What is required to add additional controllers to an existing HUAWEI OceanStor system?
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)
A differential backup holds all changes that were made since the last successful full backup.
Which of the following is not a port type defined by Fibre Channel?
When a RAID configuration is in a degraded state it means that no data has been lost yet.
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:
Which of the following statements about switched fabric topology in Fibre Channel SANs is NOT true?
Why storage systems has more than one storage controllers in the Dual Storage Controller Architecture?
Which of the following items is NOT mandatory in a Fibre Channel SAN?
(Multiple Choice)
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?
The only cable type that can be used to connect disk enclosures is the mini SAS cable.
Statement 1: OceanStor Dorado systems are designed for high performance environments. Statement 2: OceanStor Dorado systems are so-called All Flash Arrays.
Dual-switch networking is widely applied in Fibre Channel SANs. Which of the following are its characteristics? (Multiple Choice)
Which of the following are deployment modes of cloud computing? (Multiple Choice)
Incremental backup requires the last full backup and each incremental backup to fully restore data. Data reconstruction is therefore slower compared with full backups.
Which of the following statements about the differences between DAS and SAN is incorrect?
A device can have one WWPN but multiple WWNN's.
Based on common ICT architecture, what effect does network latency have on the performance of networks?
In HUAWEI OceanStor, for synchronous replication to be successful, all host applications must be pauzed during the replication update process.
Which device allows segregation of collision domains but not broadcasting domains?
Which of the following is NOT a benefit of cloud datacenters?
