EMT Practice Test

1. Question Content...

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Question1: Taking Huawei Oceanstor hybrid flash memory device as an example, when any Ethernet port in the binding port fails, IP drift technology will be applied.

Question2: Which of the following is the correct configuration process for the Huawei OceanStor V3 storage system?

Question3: Which of the following is correct for RAID 3? (Multiple Choice)

Question4: Which of the following options are not the constituent elements of the SAN architecture?

Question5: What are the functions that can be achieved by storage snapshots? (Multiple Choice)

Question6: Statement 1: There is an interconnection line between the controllers of the storage system. If one of the controllers is broken, the working controller belonging to the LUN managed by it will be switched to a working controller.
Statement 2: The working controller and the owning controller of a LUN must be unified into one controller.

Question7: With the advent of the era of big data, the corresponding storage technology is also undergoing changes. Regarding the changes in storage technology, which of the following statements is correct? (Multiple choice)

Question8: Most of the data generated by the Internet industry is structured data, and this part of the data accounts for about 80% of the total amount of data.

Question9: What is the measurement index of a storage system's performance? (Multiple choice)

Question10: What is the default multi-path load balancing strategy used by Huawei OceanStor V3 storage products?

Question11: What versions of the NFS protocol are there? (Multiple choice)

Question12: In the Huawei OceanStor V3 storage system, which one of the following statements about mapping snapshot LUNs is correct?

Question13: Regarding the characteristics of DAS, which of the following descriptions is correct? (Multiple choice)

Question14: Hybrid cloud is a solution that uses both private cloud and public cloud at the same time.

Question15: Which of the following are the maintenance items of the data center storage administrator? (Multiple choice)

Question16: Regarding the characteristics of the LAN-BASED backup method, which of the following is incorrect?

Question17: Regarding the description of eSight, which of the following statements are correct? (Multiple Choice)

Question18: An e-commerce company has configured the highest priority of I/O for the main online transaction business in the storage system, and the instant messaging and archive services are respectively low and medium priority. At this time, the I/O needs to be written in the same time period 123456 , Among which 3,5 comes from online transaction business, 2,6 comes from instant messaging, 1,4 comes from archiving business, which of the following I/O writing sequence is wrong? (Multiple Choice)

Question19: NAS is easier to deploy than SAN.

Question20: If a company's business is to write large-scale data randomly into LUNs, which initial capacity allocation strategy and which data migration strategy are recommended?

Question21: Which of the following scenarios use the SCSI protocol? (Multiple Choice)

Question22: In Huawei OceanStor V3 based on RAID 2.0+, when a user creates a file system, the system will first automatically create a corresponding LUN and generate a file system on the LUN.

Question23: The SATA connector can support both SATA and SAS hard disks at the same time.

Question24: Which of the following are the application scenarios of the SAN solution? (Multiple choice)

Question25: What is the networking method of FC SAN? (Multiple choice)

Question26: The management IP address of a storage device is 192.168.5.12. Which of the following needs to be entered by Engineer A in the browser to log in correctly?

Question27: Which of the following commands can be used to view the license information?

Question28: SCSI communication is initiated by the initiator, received and processed by the target. When the host communicates with the storage device, the storage device side assumes the role of the initiator.

Question29: Engineer A wants a RAID that does not affect the CPU, and engineering B wants a RAID that the CPU runs. Which of the following is correct? (Multiple Choice)

Question30: Regarding the benefits and necessity of building a disaster recovery system for enterprises, which of the following statement is wrong?

Question31: Which of the following descriptions about Huawei RAID 2.0+ technology is correct? (Multiple choice)

Question32: In the storage planning and deployment stage, an enterprise has learned that the company's business requires high read and write performance, data redundancy and data recovery capabilities, and hopes to ensure that data can be recovered by one person in the event of a single failure. At the same time, it is required that the utilization rate of the hard disks in the RAID group composed of 6 hard disks is not less than 60%. According to the above requirements, which RAID levels can be selected? (Multiple Choice)

Question33: Which of the following statements about eservice are correct? (Multiple Choice)

Question34: Which is the correct description of the FTP file transfer protocol?

Question35: A user of a company can automatically report the alarms of connected storage devices to the Huawei Service Support Center through a piece of management software.
So, which software is this user using?

Question36: Which of the following descriptions of the iSCSI protocol are correct? (Multiple Choice)

Question37: The RDMA protocol can achieve direct access to the memory of the remote device. RDMA achieves ultra-low latency between endpoints, ultra-high throughput transmission, and does not require cpu, os intervention does not need to consume too many other resources for the processing and transmission of network data.

Question38: Regarding PCle Scale-Out and IP Scale-Out, which descriptions are correct? (Multiple Choice)

Question39: In the storage system, which of the following statements about cables are correct? (Multiple Choice)

Question40: The NAS engine and the storage unit are interconnected by an Ethernet switch.

Question41: Regarding the description of the hard disk domain in Huawei RAID 2.0+ technology, which of the following statement is incorrect?

Question42: Huawei's all-flash storage system uses the SmartMatrix architecture to achieve full interconnection between the front and back ends, and the failure of any one controller does not affect the normal operation of the business.

Question43: Which of the following descriptions are correct about the functions of the Huawei storage device control module? (Multiple Choice)

Question44: What are not common backup types? (Multiple Choice)

Question45: Among the components of the mechanical disk, the components responsible for reading and writing data are:

Question46: DAS is divided into internal DAS and external DAS

Question47: What kind of technology does the OceanStor 5300 V3 expansion controller belong to?

Question48: OceanStor 5300V 3 is a dual-controller converged storage product. It must be ensured that the working controller of the LUN is consistent with the owning controller.

Question49: After a certain company power on a certain data center system, in the initial configuration process, which of the following options are necessary? (Multiple choice)

Question50: Which of the following has the highest performance?

Question51: In Huawei OceanStor V3, what unit does Thick LUN apply for space from the storage system?

Question52: A company is considering migrating part of its business from the old storage to the new Huawei distributed storage during the IT architecture upgrade. Which of the following is correct?

Question53: Huawei RAID-TP technology can tolerate the failure of 3 disks at the same time.

Question54: For random accessing to mechanical disks, the biggest impact on the time taken to complete an IO is:

Question55: The size of the primary LUN and the secondary LUN in remote replication must be the same

Question56: The earliest form of external storage is to connect some independent disks in series. Only increasing the capacity cannot provide security. Which of the following description is correct?

Question57: A certain bank will launch a set of business systems, which have very high performance and security requirements. The database uses an Oracle database and plans to deploy the Oracle database to a storage system. Then, when creating a RAID group for the Oracle database, the optimal RAID strategy should be:

Question58: HA (High Availability) refers to the ability to continue to access applications in the event of a single component failure of the local system.
In a data center, the downtime is one hour in a year. What is the HA of this data center?

Question59: Which of the following descriptions of cloud computing are correct? (Multiple choices)

Question60: DAS is a storage architecture without scalability.

Question61: Snapshot refers to a consistent data copy of source data at a certain point in time. After the snapshot is generated, it can be read by the host or used as a data backup at a certain point in time.

Question62: Regarding the characteristics of the four disaster recovery modes of active-active, hot standby, warm standby, and cold standby, which of the following statement is wrong?

Question63: Some file types in the computer file system, such as XML, HTML, and Json, can be classified as semi-structured data according to the data type.

Question64: After a bank moved, the data on the mechanical hard disk could not be read. The engineer judged that the hard disk was faulty. What could be the cause of the fault? (Multiple Choice)

Question65: Regarding the characteristics of the LAN-FREE backup method, which of the following is incorrect?

Question66: What are the storage product forms? (Multiple Choice)

Question67: Images and music belongs to unstructured data.

Question68: In the Huawei OceanStor V3 storage system, which of the following statement of Smart Thin LUN is correct?

Question69: Double write means that two storages are written at the same time, and the completion of the writing is signaled to the host separately. One storage terminal fails and cannot be restored to the host, and the business is interrupted.

Question70: Use the CIFS protocol to access the share. When the share name is the same as the user name, the order of access to the share is:

Question71: Development trend of cloud data center:
1. Business-driven distributed cloud data center
2. Distributed cloud data center
3. Enterprise chimney
4. Cloud data center

Question72: Which of the following descriptions of RAID 5 is correct? (Multiple choice)

Question73: The process of regenerating all user data and parity data on the failed disk in the mirror array or RAID array is called:

Question74: Regarding the advantages of DAS, which of the following descriptions is correct? (Multiple choice)

Question75: A company newly purchased a hybrid flash memory device. What functions can the device provide for the company? (Multiple Choice)

Question76: Which of the following storage services does Huawei distributed storage (such as Huawei OceanStor100D) support? (Multiple Choice)

Question77: Which of the following descriptions are correct about the hard disk interface? (Multiple Choice)

Question78: Database data belongs to structured data, and audio and video data belong to unstructured data. At present, the growth of storage space mainly comes from the rapid growth of unstructured data.

Question79: Which of the following is not a backup type?

Question80: SmartKit contains all kinds of tools required for IT equipment deployment, maintenance, upgrades, etc., which can help product users, service engineers and maintenance engineers to accurately operate the equipment in the above process, reduce the difficulty of operation, and improve work efficient.

Question81: Regarding the definition of information, which of the following descriptions are correct? (Multiple Choice)

Question82: Which is correct about RAID 10? (Multiple Choice)

Question83: IP drift supports drifting between different types of interface modules.

Question84: SAS is a point-to-point, half-duplex, dual-port interface.

Question85: Synchronization in cloning, double write 0 and single choice for master and slave LUN

Question86: Which of the following about the Thin LUN reading data process is correct?

Question87: Which of the following statements about Huawei RAID 2.0+ is correct? (Multiple choice)

Question88: A company purchased DAS storage devices to store documents and business data in the early stage. With the growth of business volume and business diversity, which of the following problems might the company encounter? (Multiple Choice)

Question89: Regarding database-level disaster recovery, which of the following statement is wrong?

Question90: In a traditional RAID group, when a certain number of hard disks fail, the entire RAID group can prevent data loss, and the data recovery process has not yet started. What is this state?

Question91: Which of the following are the characteristics of big data? (Multiple choice)

Question92: Taking Huawei OceanStor all-flash devices as an example, which of the following descriptions of logical ports are correct? (Multiple Choice)

Question93: Which version is used to check RHEL 5 operating system?

Question94: Which of the following operations should be done by employee A of a bank in the first maintenance project of data center storage?
1. Check Toolkit installation
2. Check eService installation and configuration
3. Check the alarm policy configuration

Question95: Description 1: The CIFS share provided by a company's storage system is a public directory, and all users with permissions can access it.
Description 2: A company's storage system sets up Homedir sharing so that different users can only access private directories with the same user name.

Question96: What are the authentication methods of CIFS? (Multiple Choice)

Question97: A company uses the CIFS protocol for file sharing, and uses the Homedir sharing method in accordance with the security policy to provide all users with space for accessing folders and writing.

Question98: The following are two statements about cloud computing:
Statement 1: A deployment model of cloud computing is to divide a large physical server into multiple small virtual machines.
Statement 2: A deployment model of cloud computing is to aggregate multiple small physical servers into one large host.

Question99: Which of the following are the characteristics of cloud storage? (Multiple Choice)

Question100: Smart Tier cannot be enabled for a storage pool composed of a single hard disk type.

Question101: In an enterprise IP SAN network, the host resource occupancy rate is always high. After investigation, it is found that the Initiator software in the host occupies a large amount of resources to complete the conversion of iSCSI packets to TCP/IP packets. The enterprise engineer proposed several types of storage Network upgrade solutions, which of the following solutions can solve the above problems? (Multiple Choice)

Question102: Which is correct about traditional RAID? (Multiple Choice)

Question103: Which of the following two descriptions is correct?
Description 1: The maintenance cost of traditional PC is usually lower than that of a desktop cloud.
Description 2: In cloud computing, data is stored and managed centrally.

Question104: 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)

Question105: In the Huawei OceanStor V3 storage system, a customer plans to deploy 3 systems, a business system, running an Oracle database, which requires high random read and write performance; a mail system for daily mail processing; a video system, save long-term archived videos.
When creating LUNs for each system separately, which of the following Smart Tier policy settings are correct? (Multiple choice)

Question106: When CIFS share permissions are assigned, if a user lives in a different user group, and for a share, the CIFS share grants different permissions to the user group and the user, and the user's permissions are the maximum authority of the user group and user permissions of the user.

Question107: What steps did the high-end storage architecture go through? (Multiple Choice)

Question108: Data processing includes the following basic steps: input, processing, and output. Which of the following options belong to the processing steps? (Multiple Choice)

Question109: What are the NFS authentication methods? (Multiple Choice)

Question110: Statement 1: A RAID composed of several hard disks is called a physical volume.
Statement 2: RAID 5 can increase the read and write speed and provide a certain degree of data security, but when a single hard disk fails, the read and write performance will be greatly reduced.

Question111: Which of the following descriptions is correct?
Description 1: LUN is composed of multiple Extents in the storage pool.
Description 2: LUN can contain one or more types of Extent.

Question112: There are two statements about backups as follows:
Statement 1: The data backed up on the tape can be used for data recovery at any time, but only the historical data at the time of the backup can be recovered, not the data at the time of the failure.
Statement 2: Using tape as the backup medium is the highest RTO backup method.

Question113: Among the following backup media, the order of unit capacity price from low to high is:

Question114: Regarding the description of the NFS protocol, which is wrong?

Question115: FC relies on a dedicated FC network, which is easy to form storage islands.

Question116: Which three data centers refers to 3DC in the disaster recovery solution? (Multiple choice)

Question117: 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)

Question118: Huawei ocenstor can only be expanded through PCI and Scale-out.

Question119: Which of the following can be achieved by storage snapshots? (Multiple Choice)

Question120: Which of the following description about NAS is wrong? (Multiple choice)

Question121: Which one of the following methods can achieve the RTO optimization?

Question122: In flash memory media chip technology, QLC is cheaper than TLC and supports frequent rewriting. SCM (Storage Class Memory, storage class memory) can provide high-speed read and write rates, suitable for server memory.

Question123: If the disaster recovery center in the same city fails, the production center in the cascade networking mode will lose all the backup sites.

Question124: The SCSI protocol can be used not only for the communication between the host and the disk, but also for the communication between hosts, physical tape libraries, and optical disks, etc.

Question125: The performance of the controller, front-end and back-end ports can be monitored through Device Manager.

Question126: For remote replication, the primary LUN and secondary LUN must be consistent.

Question127: What are the challenges faced by traditional data centers? (Multiple choice)

Question128: Description 1: Enterprises should know how much downtime costs, so as to determine the appropriate backup strategy
Description 2: RTO is not always important for business continuity, but RPO is important

Question129: Which of the following descriptions of the working principle of NFS are wrong? (Multiple Choice)

Question130: What are the correct compression features of Huawei? (Multiple Choice)

Question131: In a RAID 5 composed of three disks, if 10110110 and 11010011 are written to two data disks forming the same strip at the same time, then 01100101 will be written to the parity disk.

Question132: What kinds of external storage are there? (Multiple Choice)

Question133: Huawei's full-flash storage system uses the Smart Matrix architecture to achieve front-end and back-end interconnection, and the failure of any controller does not affect normal business operations.

Question134: The advantages of SAN for NAS unified storage do not include:

Question135: After a design company purchases a NAS file storage system and configures CIFS sharing services, which of the following is implemented by this device? (Multiple Choice)

Question136: Which of the following descriptions about disaster recovery is wrong?

Question137: Distributed storage uses system storage on the cloud and only provides object storage. If you need file storage, you need to purchase NAS equipment separately.

Question138: In disaster recovery applications, the HyperMirror function (remote data replication) can only be performed between two OceanStor 5300 V3, and cannot be performed between OceanStor 5500 V3 and OceanStor 5300 V3.

Question139: Statement 1: The file system of SAN storage is deployed on the storage side, and the file system of NAS storage is on the host side.
Statement 2: Dynamic hierarchical storage can realize data migration between storage media with different performance

Question140: Which of the following descriptions of the file access protocol is correct? (Multiple choice)

Question141: Which of the weather forecast cloud images are correct? (Multiple Choice)

Question142: Huawei focuses on IT infrastructure in the ICT field.

Question143: A company purchased a set of Huawei storage (such as Huawei OceanStor hybrid flash memory) equipment, using SAS interface hard drives.
In addition to SAS hard drives, what types of hard drives can the storage support? (Multiple Choice)

Question144: Which of the following descriptions 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.

Question145: What state must the LUN migration be before the consistency split is performed?

Question146: Smartkit can manage third-party devices.

Question147: What is correct about SSD solid state drives? (Multiple Choice)

Question148: To use storage resources provided by OceanStor V3 storage devices for Windows-based servers, the following steps are required:
1. Create a hard disk domain and storage pool
2. Create hosts and host groups
3. Create LUNs and LUN groups
4. Configure the initiator on the server and storage device
5. Connect the server to the storage device
6. Format the logical disk
7. Install the initiator software to the server
8. Mapping
Please sort the above steps.

Question149: The CoE protocol means to encapsulate the FC protocol into TCP/IP protocol package and transmit it on the Ethernet.

Question150: An enterprise has established active-active data centers in city A and city B.
If the active-active arbitration mode of storage (such as Huawei OceanStor hybrid flash memory) is static priority mode, site A is a static priority site.
Which of the following descriptions are correct? (Multiple Choice)

Question151: Statement 1: FC protocol and FCoE protocol have different operating environments, different operating channels, and the same protocol stack.
Statement 2: FCoE can only run on 10GE, which solves the problem of short FC transmission distance and packet drop in IP network.

Question152: Which RAID can recover data when data is damaged? (Multiple Choice)

Question153: In the case of using RAID 2.0+ technology, Thick LUN is composed of Grain, and Thin LUN is composed of Extent.

Question154: Which of the following options belong to the subsystem of the storage device? (Multiple Choice)

Question155: Compared with traditional RAID, what are the characteristics of RAID 2.0+ technology? (Multiple Choice)

Question156: According to the disaster tolerance effect, the disaster tolerance level can be divided into ____. (Multiple choice)

Question157: Which of the following descriptions of SAN and NAS are correct? (Multiple choice)

Question158: Which one of the following options is stored in a narrow-sense storage?

Question159: A company makes a complete data backup relative to the current business for salesperson inquiry and data mining. Which of the following can be used to end?

Question160: Regarding Huawei's OceanStor V3 storage dynamic tiered storage technology, which of the following descriptions is wrong?

Question161: 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)

Question162: The failure of any one hard disk in the RAID 10 level RAID will not affect data access.

Question163: Which of the following is not an IP SAN component?

Question164: A company purchasing a set of Huawei storage services needs to provide file services while providing block services. Which of the following is correct?

Question165: Which of the following descriptions about the technical characteristics of pre-copy are correct? (Multiple Choice)

Question166: What are the common time indicators to measure the reliability of a system? (Multiple choice)

Question167: hich of the following options are correct regarding the advantages of NVMe? (Multiple Choice)

Question168: The same source LUN can form multiple different Hyper Clone Pairs with different target LUNs. Only one target LUN can be added to the Hyper Clone Pair.

Question169: The factors that affect the performance of mechanical hard disks do not include ____.

Question170: Taking OceanStor Huawei all-flash storage products as an example, which of the following descriptions of the indicators are correct? (Multiple Choice)

Question171: Taking Huawei OceanStor all-flash memory as an example, which of the following understandings about a certain structure of all-flash storage software are correct? (Multiple Choice)

Question172: For a system with high business continuity, the RPO and RTO values should have which of the following characteristics?

Question173: Which CLI shortcuts are correct? (Multiple Choice)

Question174: Which of the following descriptions of NAS solutions are correct? (Multiple choice)

Question175: When creating a hyper clone with hybrid flash memory, a group of hyper clones must be configured.

Question176: Which of the following statements are correct about flash memory particles? (Multiple Choice)

Question177: Statement 1: ICT infrastructure should be built with high-end equipment with high reliability, so there is no need to establish a backup.
Statement 2: Servers are usually used to refer to computers with higher specifications in some enterprises. These computers usually install some important software in the enterprise, run important business.

Question178: The IT storage equipment of a bank was relocated, and the mechanical hard disk could not be read. The engineer judged that the hard disk was broken. What are the possible reasons? (Multiple Choice)

Question179: Take Huawei Ocean Stor flash storage products as an example. Which of the following descriptions of indicator lights are correct? (Multiple Choice)

Question180: Which of the following descriptions about RAID technology is correct? (Multiple choice)

Question181: The full name of RPO used in disaster recovery backup is:

Question182: In which of the following scenarios InfiniBand can be applied? (Multiple Choice)

Question183: On which of the following storages the NV ME interface protocol is applied?

Question184: In the LAN-Base networking, both business flow and data flow go through the LAN network, which occupies a large bandwidth.

Question185: Regardless of whether it is a single disc or multiple discs, only one head is allowed to read and write data at a time.

Question186: Which of the following statement about the three iSCSI connection methods is correct?

Question187: Which RAID use parity? (Multiple Choice)