The InfiniBand interface is used as the front-end host interface in Huawei OceanStor V3 unified storage, which can flexibly support direct connection and
Multiple networking modes of switches.
Based on the new industrial revolution, what are the changes in the trend of ICT? (Multiple Choice)
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:
Host-level disaster recovery has less investment and better compatibility.
HUAWEI OceanStor V3 SmartTier can be used to position files to be on specific disk drive types.
A host connected to a switch port cannot belong to multiple zones, but can only be divided into a zone
in.
When the disk is read and written, the sector is the minimum addressing unit, and a segment can be written to the first half of a sector
Data, and then write a piece of data to another sector.
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.
Which of the following three disaster recovery technologies are commonly used? (Multiple choice)
The backup is to copy and save the data or system. Once an error or disaster occurs, these backups can be used to restore the system
Data to restore the business to a normal operating state.
Which of the following statements is NOT true for a SAN solution?
The mount command is used in Linux-based clients to connect the client to the NFS share.
FC relies on a dedicated FC network and can easily form storage islands.
Because of the addition of the Data Center Bridging technology .today iSCSI is, just as FC, a lossless protocol.
What are the following descriptions of the three iSCSI connection methods?
Huawei focuses on IT infrastructure in the ICT field.
Which device allows segregation of collision domains but not broadcasting domains?
Can the following transmission protocols not use switches?
Which of the following is NOT a component in an IP SAN?
When using LAN-based backups it is best to create a dedicated backup network.
Which of the following is NOT a port name in Fibre Channel.
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.
In the Huawei OceanStor V3 storage system, which of the following descriptions about SmartThin LUN is correct?
If a company uses an OLTP database, which migration strategy is suitable for SmartTier?
Statement 1: The higher the number used to indicate the RAID level, the higher the overhead
Statement 2: RAID 10 stripes the data, then mirrors the stripe set.
Which of the following is not an IP SAN component?
Which one of the following component is responsible for rotating the disk platter in the disk drive?
Which of the following allows direct physical access to end users?
Which of the following describe DAS? (Multiple Choice)
The following describes RAID 10, which are correct? (Multiple choice)
Which of the following statements is incorrect?
Which of the following is NOT a benefit of cloud datacenters?
SAN network-based data replication technology is a storage area network between front-end application servers and back-end storage systems
Network (SAN), adding a layer of intelligent switches, the front end is connected to the server host, and the back end is connected to the storage device.
When the Windows copy program copies local files to the file system, the file system block size of the Huawei OceanStor V3 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 V3 series products can only improve read performance, not write performance.
A device can only have one WWPN, but it can have multiple WWNNs.
In RAID 2.0+, the administrator needs to manually set which hard drives are designated as hot spares.
Which of the following descriptions of refactoring is incorrect?
A, RAID 0,1,3,5,6 and 10 support reconstruction
B. Reconfiguration does not necessarily require hot spare disks
C, reconstruction has an impact on RAID performance
D. Reconstruction will not interrupt RAID business
Data is the record that reflects the attributes of objective things and is the physical manifestation of information,
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?
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 of the following is not the benefits of converged storage systems?
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
What is the infrastructure of the data center? (Multiple choice)
Description 1: HyperMirror has a LUN failure, the host service is not interrupted, the HyperClone primary LUN fails, and the host service is interrupted.
Description 2: HyperMirror supports dual copies, HyperClone supports a maximum of 1 master LUN: 16 slave LUN mode.
In the RHEL 5 operating system, which command is used to mount the sdb5 device in the dev directory to the mnt directory
sdb5 directory?
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.
Statement 1: A port can be listed in multiple zones.
Statement 2: A switch configuration can contain multiple zones.
Which of the following statements about pre-copy is incorrect?
A device has only one WWNN number, but it can have multiple WWPN numbers.
Which of the following are the 3 layers of components that storage systems are made up of?
(Multiple Choice)
A user is having intermittent problems connecting to their shared network storage, A network technician is able to determine that there is a problem within the network cabling in between the workstation and the switch. All other users are able to connect successfully to the network. Which of the following is the MOST likely cause?
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.
The components of a storage device are redundant, including controller modules, management modules, BBU modules, interface modules, power modules, and fan modules. Component redundancy ensures system reliability.
The following two descriptions are correct:
Description 1: The maintenance cost of traditional PC is usually lower than that of desktop cloud.
Description 2: In cloud computing, data is stored and managed centrally.
OceanStor V3 series storage can only support iSCSI or FC host links separately, not both
Connect to the network.
What is typical for a DAS solution?
(Multiple Choice)
Which of the following are common RAID types. (Multiple Choice)
Select the correct statements that describes the properties of bus technology in ICT architecture. (Choose all that apply.)
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 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
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.
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.
The difference between DAS and SAN, which of the following descriptions is wrong?
Statement 1: LAN based backup strategies are preferred as they are the most cost efficient method and offer the highest performance.
Statement 2: Any backup strategy should provide in storing production data and backup data in different physical locations.
Statement 1: Port zoning is preferred for zoning a FC switch when there are a lot of changes to the patch points.
Statement 2: Alias zoning is a user friendly version of soft zoning.
Statement 1: For RAID 2.0+ to work optimally multiple disk domains must be created. Statement 2: A disk domain with 100 disks in it has better RAID 2.0+ protection and performance characteristics than a disk domain with 50 disks.
Select the correct statements that describes Mean Time Between Failure(MTBF).
(Multiple Choice)
Host is a computing system consisting of hard drives or file system that can provide data access and storage.
Which of the following statements about Huawei RAID 2.0+ are correct? (Multiple choice)
What are the maintenance items of the data center storage administrator? (Multiple choices)
In a RAID5 composed of three disks, if 10110110 and 11010011 are written simultaneously,
Two data disks with the same stripe, then 01100101 will be written to the verification disk.
Select the correct statements about the structure and functions of the hard disk components. (Choose all that apply.)
The restore time objective (RTO) specifies the time needed to recover the data and servers after after a disaster has occured,
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