Which of the following statements about LAN-free backup is incorrect?
Description 1: FC protocol and FCoE protocol have different operating environments, different operating channels, and the same protocol stack.
Description 2: FCoE can only run on 10GE, which solves the problems of short FC transmission distance and packet loss in IP networks.
Connecting an OceanStor 5300 V3 to three disk enclosures requires.......... SAS cables.
Which statement is true about RAID 2.0+?
In the Huawei OceanStor V3 storage system, one LUN can create multiple snapshots, but only one snapshot
Can be activated.
Statement 1: Creating an incremental backup is faster than creating a differential backup. Statement 2: Restoring from an incremental backup is faster than from a differential backup.
What is wrong about the snapshot technology below?
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?
What is the description of file-level HyperSnap feature data recovery in Huawei OceanStor V3 storage system, which
Are these correct? (Multiple choice)
In the Huawei OceanStor V3 storage system, which of the following descriptions about mapping snapshot LUNs is correct?
Match the operating system with the protocol. The operating systems include:1.Windows 2.Linux 3.Apple OSX; The protocols incude: A-NFS B - CIFS C - SMB
Which of the following statements about HUAWEI OceanStor V3 SmartTier dynamic storage tiering technology is NOT true?
The OceanStor 6800 V3 frame itself can be configured with four controllers or only two controllers. If configured as dual control
The power supply and BBU are fully configured, and the interface cards and controllers are all arranged in the upper row.
SmartThin is a storage space management provided by Huawei OceanStor V3 storage system to allocate storage resources on demand
Technology, based on virtualization technology, SmartThin reduces the deployment of physical storage resources and maximizes storage space
Utilization rate.
A, yes
B, wrong
It is a hard-disk failure that occurs when a read-write head of a hard disk drive comes in contact with its rotating platter, resulting in permanent and usually irreparable damage to the magnetic media on the platter surface. Which of the following fits the above description?
An e-commerce website usually has a relatively stable business volume, so I purchased the server and built a private cloud operation
During the Double Eleven promotion, the business volume is very large, so we rent the server from the operator's public cloud to share the festival's burden
Netherlands, this cloud computing deployment model belongs to?
IP SAN uses underlying optical networks to connect servers and storage systems.
The SATA connector can support both SATA and SAS hard drives.
The maintenance network port is used, by the DeviceManager, for daily management.
What statement is true?
Which of the following methods can achieve the optimal RTO?
Cloud computing business models are: (multiple choices)
Which of the following disk interface technologies use serial interface technology?
(Multiple Choice)
When a RAID configuration is in a degraded state it means that no data has been lost yet.
There are two descriptions about backups:
Description 1: You can use the data backed up on the tape for data recovery at any time, but you can only recover to the backup moment
Historical data, not the data at the time of failure.
Description 2: Using tape as the backup medium is the highest RTO backup method.
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.
In HUAWEI OceanStor V3, for synchronous replication to be successful, all host applications must be pauzed during the replication update process.
A device has only one WWNN number, but it can have multiple WWPN numbers.
Snapshots used for backup purposes should be set to read-only to prevent modification by other applications and affect the backup data
consistency.
When the disk is not accessible, what kind of reconstruction method is used when writing to the disk?
The hard disk domain supports online addition of hard disks, and the storage pool supports online expansion.
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.
Select the correct statements that describes the properties of bus technology in ICT architecture. (Choose all that apply.)
Which of the following statements about Disaster Recovery is NOT true?
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.
The following description of disaster recovery is incorrect?
What is wrong about the relationship between FC protocol and SCSI protocol?
Huawei OceanStor V3 series storage system hardware includes controller enclosures and disk enclosures. Which of the following statements about controller enclosures are correct?
(Multiple Choice)
It is the interconnection via the Internet of computing devices embedded in everyday objects, which enables them to send and receive data. Which of the following fits the statement above?
Which of the following statements about SAS is false?
A differential backup holds all changes that were made since the last successful full backup.
Database data belongs to structured data, and audio and video data belong to unstructured data.
The growth comes mainly from the rapid growth of unstructured data.
When a company's customers need to complete data migration between devices, what features can be used to complete? (Multiple choices)
Which of the following statements are characteristics of pre-copy technology?
(Multiple Choice)
Among the components of the mechanical disk, the parts responsible for reading and writing data are:
In Huawei OceanStor V3, what unit is Thick LUN applying for space from the storage system?
The following two descriptions about cloud computing,
Description 1. A deployment model of cloud computing is to divide a large physical server into multiple small virtual machines;
Description 2. A deployment model of cloud computing is to aggregate multiple small physical servers into one mainframe.
A company needs to make a backup strategy. The company has a small amount of backup data, and hopes to back up in a short time and save storage space to the maximum. What type of backup do you recommend?
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.
Regarding Huawei OceanStor V3 storage dynamic tiered storage technology, which of the following descriptions is incorrect?
Which of the following is NOT the characteristics of the active-active mode of a storage controller?
Which of the following are the 3 layers of components that storage systems are made up of?
(Multiple Choice)
The following description about the characteristics of the LAN-BASED backup method is incorrect:
In HUAWEI OceanStor V3,what statement is true about SmartThin LUNs?
Two CKs in a CKG of RAID2.0+ can come from the same hard disk.
In Huawei OceanStor V3 based on RAID2.0+, when a user creates a file system, the system will automatically create it first
Correspond to the LUN, and generate a file system on the LUN.
You need to manually set free disks as hot spare disks in a Huawei OceanStor V3 storage system when you use RAID 2.0+.
Regarding the characteristics of DAS, the following description is correct: (multiple choice)
The multipath load balancing strategy used by Huawei OceanStor V3 storage products is the default?
In high end storage systems, what is the main function of the service processor?
Statement 1: Multimode optic cables are usually longer than single mode cables.
Statement 2: Sharp cable bends lead to weaker signal at the end of the cable.
When determining hard disk performance, which of the following are relevant.
(Multiple Choice)
Which of the following is the end that receives and processes the SCSI commands?
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.
Which of the following system model is a direct representation of the SCSI connection between the SCSI Initiator and Target?
Host-level disaster recovery has less investment and better compatibility.
What are the following types of disaster recovery at the host layer? (Multiple choice)
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)
iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.
Which of the following statements about LAN-based backup is incorrect?
Which of the following statements are true for a NAS solution?
(Multiple Choice)
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.
In the Huawei OceanStor V3 storage system, which of the following descriptions about SmartThin LUN is correct?
