EMT Practice Test

1. Question Content...

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Question1: Which of the following descriptions of RAID 10 is correct? (Multiple choice)

Question2: Which of the following descriptions of RAID 1 is incorrect?

Question3: Engineer A configures a snapshot of the business data LUN of the Huawei Ocaenstor hybrid flash memory system. Which of the following steps are correct? (Multiple Choice)

Question4: 86. When using the NFS protocol, adding clients and setting read and write permissions have an impact on performance.

Question5: In the Huawei OceanStor V3 storage system, what kind of protocol is used for the mirroring channel between the controllers?

Question6: The SCSI bus assigns a unique ID to each device, and can support up to 8 devices. On the one hand, the device ID is used to address and the other is to identify the priority of the device in the use of the bus.

Question7: If no data migration plan is set, with SmartTier enabled, there will be no data movement at al between tiers.

Question8: ①Scale-out, horizontal expansion, can improve capacity and performance at the same time
②Scale-up, horizontal expansion, cannot improve capacity and performance at the same time (Multiple Choice)

Question9: The iSCSI protocol can be transmitted through the optical fiber network, and the transmission distance is almost unlimited. The iSCSI protocol is limited by the SCSI protocol and can run on the Ethernet.

Question10: There are two statements about backups below, which is correct?
Statement 1: The disaster recovery plan does not need to consider whether the backup is on tape or on hard disk.
Statement 2: The backup plan should consider the worst-case scenario.

Question11: Engineer C maps the storage to the file server for storing various files of the enterprise. One day, the file system was attacked by a virus and the file could not be opened normally. In order to allow the files to be accessed normally, storage engineer C performs a snapshot rollback operation. Which of the following descriptions is wrong?

Question12: Which of the following descriptions about RAID technology is correct? (Multiple choice)

Question13: Which of the following allows direct physical access to end users?

Question14: Regarding the description of pre-copy, which of the following statement is incorrect?

Question15: Extent is the logical storage space divided on the basis of CKG. It is the smallest unit of hot data statistics. The extent size in the same storage pool can be different.

Question16: In the LAN-Base networking, both business flow and data flow go through the LAN network, which occupies a large bandwidth.

Question17: Statement 1: Multipathing is caused by adding redundant hardware.
Statement 2: Huawei offers a different version of Ultra Path for different operating systems.

Question18: What technology is used to realize the conversion between Thick LUN and Thin LUN?

Question19: In a 30 TB storage resource pool, an enterprise created three 10 TB Thin LUN for the online transaction system, mail system and backup system. Since the company has just started, there is very little data on the online transaction system and mail system. The amount of old data that the backup system needs to import is about 20 TB, and the amount of data exceeds the size of the Thin LUN, causing write failure.

Question20: Which of the data storage types are classified based on data access frequency?

Question21: Which of the following objectives with the minimum value can be controlled by Smart QoS policy? (Multiple Choice)

Question22: When the Meteorological Center needs to store a large amount of satellite pictures and image data, and the amount of data will grow rapidly in a short period of time, due to the elastic expansion of cloud storage, the engineer recommends using the cloud storage platform.

Question23: Banking is the most demanding industry in enterprise IT-level systems. For its core transaction business systems, entry-level business systems are generally used to ensure business reliability.

Question24: Xiao Wang, an employee of a company, serves as the storage system administrator of the company. When he uses two sets of OceanStor5500 V3 as a disaster recovery solution, only one of them is required to configure data remote replication software.

Question25: The following description of the characteristics of the LAN-FREE backup method is incorrect:

Question26: What are the networking methods of FC SAN? (Multiple choice)

Question27: In the following description of the Hyper clone feature, which options are correct? (Multiple Choice)

Question28: Which of the following RAID levels has the lowest hard disk space utilization?

Question29: Which statement is true?

Question30: In Huawei OeanstorV3, which of the following statements about cloning are correct? (Multiple Choice)

Question31: Which of the following are the FC topology? (Multiple Choice)

Question32: What scenarios are supported by Huawei's full storage devices, such as OceanStor100D? (Multiple Choice)

Question33: In high end storage systems, what is the main function of the service processor?

Question34: 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

Question35: For Huawei Ocean Stor all-flash storage devices, which of the following descriptions about LUN and LUN groups are correct? (Multiple Choice)

Question36: FCoE is a transmission protocol standard that can encapsulate frames in FC in a lossless Ethernet, and is used to build a storage network.

Question37: Which of the following descriptions about the technical characteristics of pre-copy are correct? (Multiple Choice)

Question38: When deploying random small IO-based database services on storage, which RAID type should be appropriate? for what?

Question39: What are the implementation methods of RAID? (Multiple Choice)

Question40: According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)

Question41: Application program interface (API) is a set of routines, protocols, and tools for building software applications.

Question42: Statement 1: A company should know what the Cost Of Downtime is to determine the backup strategy.
Statement 2: For the business continuity it is not important to determine the RTO.

Question43: Each organization independently determines which data should be stored and for how long.

Question44: Which of the following would best describe a virus?

Question45: Which of the following occurs after multipathing software is installed on a host? (Multiple Choice)

Question46: Taking Huawei OceanStor distributed storage as an example, which of the descriptions are correct about the storage interface layer in the software architecture? (Multiple Choice)

Question47: 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?
a. Check Toolkit installation
b. Check eService installation and configuration
c. Check alarm policy configuration

Question48: The data of a certain company is archived data and online business data. If the cost of using SSD solid state drives is high, and the use of NL-SAS hard drives cannot meet the performance requirements, what are the following technologies that cannot meet user needs? (Multiple Choice)

Question49: What does throughput refers to In storage systems?

Question50: Huawei Ocenstor hybrid flash memory can only be expanded through PCIe Scale-out.

Question51: 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.

Question52: A company purchased DAS devices to store files and service data at the startup stage. With the increase of service volume and diversity, which problems may occur? (Select All that Apply)

Question53: What are the advantages of SSDs over HDDs?
(Multiple Choice)

Question54: CKG is composed of multiple CKs on different hard disks of different types in the hard disk domain.

Question55: 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.

Question56: Remote replication requires that the primary and secondary storage are from the same manufacturer.

Question57: Which is correct about traditional RAID? (Multiple Choice)

Question58: Statement 1: If possible it is always advised to make only Full Backups Statement 2: LAN free backups typically run slower than LAN based backups.

Question59: Which of these are O&M standard systems? (Select All that Apply)

Question60: During the host's read operation of Thin LUN, what technology is used to read data from the corresponding actual storage space in the storage pool?

Question61: When configuring the hyper metro feature in Huawei storage, the arbitration server can only be deployed on the physical server, not on the virtual machine.

Question62: What is wrong about the relationship between FC protocol and SCSI protocol?

Question63: In HUAWEI OceanStor 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.

Question64: What are components of an ICT infrastructure? (Choose all that apply.)

Question65: Which statements are true about the functions of HyperClone? (Select All that Apply)

Question66: The data compression feature refers to the reduction of the transmission processing and storage efficiency of the system by reorganizing the data and deleting duplicate data blocks without losing information.

Question67: Which one of the following options is in the correct order 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 LUNs and create LUN groups.
5. Create a host group.
6. Log in to Device Manager

Question68: Which of the following about the Thin LUN reading data process is correct?

Question69: Which of the following descriptions about the working principle of RAID 10 are correct? (Multiple Choice)

Question70: Regarding the disaster recovery drills, which of the following statement is incorrect?

Question71: The following are the characteristics of the clustered NAS storage architecture: (multiple choice)

Question72: Select which of the following which is not a properties of Distributed Object Storage Architecture.

Question73: 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?

Question74: The data backed up by the differential backup is relative to the data added and modified after the last full backup.

Question75: An enterprise needs to purchase backup media for data backup. To inherit the enterprise's original tape backup architecture and strategy, it is necessary to mention High backup speed. What kind of backup media did this enterprise purchase?

Question76: In which stage of the lifecycle management of information and data, does the data management operation such as copying and backup occurs?

Question77: Huawei ocenstor can only be expanded through PCI and Scale-out.

Question78: What is the correct description of the advantages of Huawei RAID 2.0+?

Question79: What is wrong about the snapshot technology below?

Question80: 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?

Question81: When does data become information?

Question82: SAS is a point-to-point, half-duplex, dual-port interface.

Question83: Which of the following are common RAID types. (Multiple Choice)

Question84: Software RAID realizes unified management of disks through RAID card.

Question85: Which of the following descriptions of distributed storage are correct? (Multiple Choice)

Question86: What are the release methods of the operation and maintenance software in the storage system? (Multiple Choice)

Question87: The Hyper Clone of the Huawei Ocean Stor hybrid flash storage system is a data protection value-added feature. After the Hyper Clone is created, the data of the target LUN needs to be synchronized in the background before the target LUN can be read and written.

Question88: With the advent of the era of big data, storage technology is also undergoing changes. Which of the following is correct about the changes in storage technology? (Multiple Choice)

Question89: Which of the following is the common physical size division of the surface of the hard disk?
(Multiple Choice)

Question90: Hyper metro double write. After receiving the I/O write request, the two writes together will return to the host. If the local write fails but the remote write fails, the business will be terminated.

Question91: 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.

Question92: Which device allows segregation of collision domains but not broadcasting domains?

Question93: Which of the following statements about RAID 5 are correct? (Multiple Choice)

Question94: Due to the earthquake, an enterprise's IT system went down at 16:00 on November 11th and the business was stopped. By 23:00 on that day, the IT system resumed operation, and the data at 12:00 on that day could be restored. Then this RTO What is the difference between RPO and RPO?

Question95: Most data generated by the Internet industry is structured data, amounting to 80% of total data.

Question96: The Smart Cache feature in Huawei OceanStor V3 series products can only improve read performance, not write performance.

Question97: Cloud computing can be used to improve reliability.

Question98: If a company uses an OLTP database, which migration strategy is suitable for the company's Smart Tier?

Question99: Host-level disaster recovery has less investment and better compatibility.

Question100: The smart data grading feature of Smart Tier requires three types of hard disks in the storage pool.

Question101: The server with Linux operating system installed accesses the disk array based on the RAID 5 strategy.
The order is:

Question102: Which of the following statements about storage are correct? (Multiple Choice)

Question103: It is an electronic device controlled by a motor that moves the hard drive head arm. Which of the following component fits the above description?

Question104: Statement 1: Hyper Mirror one LUN failure, the host business is not interrupted, Hyper Clone primary LUN failure, the host business is interrupted.
Statement 2: Hyper Mirror supports dual copy, and Hyper Clone supports a maximum of 1 primary LUN: 16 secondary LUNs.

Question105: Which of the following statements about RAID 6 is incorrect?

Question106: 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

Question107: Which of the following can be achieved by storage snapshots? (Multiple Choice)

Question108: Description 1: The CIFS share provided by a company's storage system is a public directory and can be accessed by users with permissions.
Description 2: A company's storage system sets Homedir sharing so that different users can only access the same user name Private directory.