Which size of HDDs is used by Huawei storage products?
Huawei OceanStor hybrid flash storage is used as an example. Which statements are true about IP address failover? (Select All that Apply)
Which of the data storage types are classified based on data access frequency?
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.
The following describes RAID 10, which are correct? (Multiple choice)
Which of the following describes the file access protocol correctly? (Multiple choice)
Which statements are true about the ports of a Huawei OceanStor all-flash storage device? (Select All that Apply)
When the RPO time requirement is at the minute level, the traditional tape backup method can be used.
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?
What versions of the NFS protocol are there? (Multiple choice)
All components of storage devices use the redundancy design to ensure system reliability. Redundant modules include controller modules, management modules, BBU modules, interface modules, power modules, and fan modules
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.
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)
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.
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)
Which ports in the FC switch can communicate with each other is determined by the zone.
When CLI is used to configure Huawei hybrid flash storage, which operation is NOT involved in creating storage space?
If a disk is faulty, what is the process of recovering data on the faulty disk?
Which of the following is the most widely used FC topologies?
Which of the following cloud service model deals with providing storage, network servers and virtualization of resources?
You need to manually set free disks as hot spare disks in a HUAWEI OceanStor storage system when you use RAID 2.0+.
Which of the following is NOT a component in an IP SAN?
A bank needs to ensure data security and use it to transfer large databases. What kind of storage network architecture is the bank suitable for?
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:
Select the statements that are correct about the functions of network devices.
(Multiple Choice)
A device can have one WWPN but multiple WWNN's.
In an ICT infrastructure the servers can run different operating systems like Windows, Linux, AIX.
Which of the following statements about Disaster Recovery is NOT true?
What is the main purpose of hot swapping technology in disk enclosures?
Statement 1: MLC drives are optimal when used for high intensity writes to that disk.
Statement 2: The latency of SSD drives is about 0.1 s.
Select the correct statements that describes Mean Time Between Failure(MTBF).
(Multiple Choice)
After the UltraPath is installed on an application server, its operating system can automatically identify the disks mapped from a storage device without being restarted.
When using LAN-based backups it is best to create a dedicated backup network.
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.
Dual-switch networking is widely applied in Fibre Channel SANs. Which of the following are its characteristics? (Multiple Choice)
Which of the following statements are characteristics of pre-copy technology?
(Multiple Choice)
In HUAWEI OceanStor, what unit is Thick LUN applying for space from the storage system?
Which of the following is the end that receives and processes the SCSI commands?
A SAN always uses the same technology to connect to the infrastructure as a NAS.
Extent of RAID2.0+ technology is the basic unit of which technology in the storage pool? (Multiple choice)
When deploying random small IO-based database services on storage, which RAID type should be appropriate? for
what?
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)
Host-level disaster recovery has less investment and better compatibility.
Description 1: The file system of the SAN storage is deployed on the storage side, and the file system of the NAS storage is on the host side.
Description 2: Dynamic tiered storage can achieve data migration between storage media with different performance
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.
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 following are the key characteristics of cloud computing:
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
Which of the following is wrong about FC SAN network switching technology?
The port selected by the IP drift strategy has nothing to do with the port rate, only related to the location of the port, the order of selecting the port
Yes?
1. Port at the same position of the remote controller
2. Ports at other locations of the peer controller
3. The port of the local controller
A device can only have one WWPN, but it can have multiple WWNNs.
According to the changes in the amount of backup data, the types of backup can be divided into:
What is wrong with the following description of NAS? (Multiple choice)
What is the synchronization cycle time limit for asynchronous remote replication?
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.
What is the infrastructure of the data center? (Multiple choice)
What are the following types of disaster recovery at the host layer? (Multiple choice)
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.
In the following backup media, the order of unit capacity price from low to high is:
The cloud data center virtualizes storage, computing and network resources, and provides a virtualization platform for users to use.
The difference between DAS and SAN, which of the following descriptions is wrong?
The SATA connector can support both SATA and SAS hard drives.
Huawei focuses on IT infrastructure in the ICT field.
Remote replication requires master and slave storage from the same manufacturer.
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 advantages and disadvantages of the disaster recovery technology of the host layer, network layer and array layer, the following statement is correct? (Multiple choice)
There are two descriptions about fiber switches below, the correct ones are:
Description 1: A port can be in multiple zones.
Description 2: A switch can have multiple zones.
What are the application scenarios of the SAN solution? (Multiple choice)
What is wrong about the relationship between FC protocol and SCSI protocol?
iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.
The following description of disaster recovery is incorrect?
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.
The dual-controller storage system generally contains a mirror channel, and data written to the storage system cache will be written through the mirror channel
Into the peer controller.
In RAID 2.0+, the administrator needs to manually set which hard drives are designated as hot spares.
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 does data become information?
Bank's bill imaging system often stores structured data on a SAN array, and unstructured data
On the NAS array.
RTO=0 and RPO=0 in the disaster recovery center of the same city.
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
