EMT Practice Test

1. Question Content...

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Question1: What applies to unstructured data? (Multiple Choice)

Question2: Which are characteristics of the HUAWEI OceanStor V3 hardware?
(Multiple Choice)

Question3: Which command is used to query the version of a Red Hat Linux 5 operating system?

Question4: 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.

Question5: Which is the correct formation order of the following elements in RAID 2.0+?

Question6: 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.

Question7: Match the correct functionalities together: (1) IaaS (2) Hybrid (3) SaaS (a) Combination of public and private (b) Applications are hosted externally (c) Hardware is outsourced.

Question8: Which of the following statements about RAID 5 and RAID 10 are correct?

Question9: OceanStor V3 series storage can only support iSCSI or FC host links separately, not both Connect to the network.

Question10: Select the correct statements that describes the properties of Distributed Storage Architecture.
(Multiple Choice)

Question11: Connecting an OceanStor 5300 V3 to three disk enclosures requires.......... SAS cables.

Question12: Which of the following is an example of unstructured data?
(Multiple Choice)

Question13: Two CKs in a CKG of RAID2.0+ can come from the same hard disk.

Question14: Statement 1: Disaster Recovery plans eliminate the need for backups on tape or disk.
Statement 2: With the design of the DR plan one should always assume the worst possible scenario.

Question15: The following description of common storage protocols is correct?

Question16: Compare NAS storage and SAN storage in terms of principle, performance, cost, sharing, and application scenarios.
Which of the following descriptions is correct? (Multiple choice)

Question17: Based on the understanding of the Generation stage of the lifecycle management of information and data, identify the 3 types of sources in which data can be generated.
(Multiple Choice)

Question18: Which of the following occurs after multipathing software is installed on a host? (Multiple Choice)

Question19: The central backup question is: How much loss can be tolerated determines how much to invest in backup?

Question20: What is best described as: the time it takes for the desired data to be beneath the read head when the head is on the correct track?

Question21: Why storage systems has more than one storage controllers in the Dual Storage Controller Architecture?

Question22: 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.

Question23: Select the correct statements about the structure and functions of the hard disk components. (Choose all that apply.)

Question24: In storage systems, what does throughput refers to?

Question25: Which of the following is the correct configuration process for Huawei OceanStor V3 storage system?

Question26: The advantages of SAN for NAS unified storage do not include:

Question27: 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.

Question28: 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?

Question29: Lifecycle Management Of Information and Data consists of 5 different stages. Which of the following is the second stage?

Question30: 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

Question31: Which of the following is the end that receives and processes the SCSI commands?

Question32: Host-level disaster recovery has less investment and better compatibility.

Question33: A device can have one WWPN but multiple WWNN's.

Question34: 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.

Question35: Which of the following statements about switched fabric topology in Fibre Channel SANs is NOT true?

Question36: Which of the following descriptions of NAS solutions are correct? (Multiple choice)

Question37: Which of the following is not involved in the SCSI Protocol Addressing?

Question38: Which of the following are the supported data storage architecture of modern storage array?
(Multiple Choice)

Question39: What is wrong about the snapshot technology below?

Question40: What is wrong about the relationship between FC protocol and SCSI protocol?

Question41: Statement 1: a snapshot of a ThinLUN at creation does not occupy storage capacity. The snapshot of a ThickLUN at creation immediately occupies storage capacity.
Statement 2: When a snapshot of a ThickLUN exists, there is always space available to store changes to the original data.

Question42: When the hard disk has bad sectors or blocks, which reconstruction method is used?

Question43: Which of the following is the advantage of object storage? (Multiple choice)

Question44: Users of a company can automatically report the alarm of the storage device connected to it to the Huawei Service Support Center through a management software. Excuse me, what software is this user using?

Question45: What is the main difference between mechanical drives such as SAS with solid state drives(SSD)?

Question46: Which of the following cloud service model deals with providing storage, network servers and virtualization of resources?

Question47: Statement 1: We have a a RAID5 protected group of disks. The protection level increases if we add more disks to the group. Statement 2: With a RAID 10 set the number of disks must be greater than 8 to always survive a dual disk failure.

Question48: 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.

Question49: The FCoE protocol refers to encapsulating the FC protocol into a TCP/IP protocol package and transmitting it on Ethernet.

Question50: A backup set is a group of data that is backed up in a batch. A backup set can be used for either full backup or incremental backup.

Question51: Storage cache can optimize the speed of the storage system.

Question52: Which of the following are correct steps in a LAN based backup job?
(Multiple Choice)

Question53: Select the correct statements that describes the properties of Distributed Object Storage Architecture.
(Multiple Choice)

Question54: FCoE is a transmission protocol standard that encapsulates frames in FC in lossless Ethernet and is used to form storage networks Network.

Question55: Statement 1: NAS solutions are always file based.
Statement 2: NAS solutions are mostly limited in distance because Ethernet cables are used.

Question56: Which is a typical application example of PaaS?

Question57: 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.

Question58: A government unit adopts Huawei's two-site, three-center solution for disaster recovery construction, and its business is mainly concentrated from 8:00 to 18:00.
What is wrong with the following approach?

Question59: In HUAWEI OceanStor V3,what statement is true about SmartThin LUNs?

Question60: Which of the following statements is NOT true? (Multiple Choice)

Question61: What are the common time indicators for measuring the reliability of a system? (Multiple choice)

Question62: In a RAID 5 group comprised of three disks, if 10110110 and 11010011 are written to the same stripe on the two data disks, respectively, 01100101 is calculated using the XOR function and then written to the parity disk.

Question63: What is a storage array?

Question64: In a Linux system, if the representation of a SCSI target is: 2:1:0:3, the following description is correct: (this question For multiple choice questions)

Question65: What are the characteristics of big data? (Multiple choice)

Question66: Extent of RAID2.0+ technology is the basic unit of which technology in the storage pool? (Multiple choice)

Question67: 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.

Question68: What are the application scenarios of the SAN solution? (Multiple choice)

Question69: 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)

Question70: Which is NOT the limitation of DAS, compared with SAN?

Question71: Select the features that are commonly available in High End storage systems.
(Multiple Choice)

Question72: What is the correct description of the NFS write mode in the Huawei OceanStor V3 storage system?

Question73: Which of the following is not a component of a backup system?

Question74: What are the main elements of the disaster recovery system? (Multiple choice)

Question75: Which of the following statements is incorrect?

Question76: Which mirroring scenarios are mainly used in HyperMirror? (Multiple choices)

Question77: Which of the following RAID levels has the lowest hard disk space utilization?

Question78: Which statement is true?

Question79: In the Huawei OceanStor V3 storage system, one LUN can create multiple snapshots, but only one snapshot Can be activated.

Question80: 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.

Question81: You need to manually set free disks as hot spare disks in a Huawei OceanStor V3 storage system when you use RAID 2.0+.

Question82: In HUAWEI OceanStor V3, for synchronous replication to be successful, all host applications must be pauzed during the replication update process.

Question83: 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.

Question84: Regarding the characteristics of the four disaster recovery modes of active-active, hot standby, warm standby, and cold standby, what is wrong in the following statement?

Question85: Distributed object storage has a unified namespace, and supports online expansion.

Question86: 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.

Question87: A host connected to a switch port cannot belong to multiple zones, but can only be divided into a zone in.

Question88: Which of the following technologies are able to quickly obtain valuable information from a variety of data types in a short period of time from a collection of vast amounts of data?

Question89: Statement 1: RAID 2.0+ is NOT based on traditional RAID technologies.
Statement 2: RAID 2.0+ has excellent rebuild characteristics.

Question90: 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.

Question91: 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)

Question92: 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.

Question93: In disaster recovery applications, the HyperMirror function (remote data replication) can only be accessed between two OceanStor 5300 V3 Yes, it cannot be performed between OceanStor 5500 V3 and OceanStor 5300 V3.

Question94: The HyperSnap functionality can be used to improve or optimize a company's backup strategy.

Question95: Which of the following statements about reconstruction is incorrect?

Question96: The multipath load balancing strategy used by Huawei OceanStor V3 storage products is the default?

Question97: Description 1: The data recovery of the snapshot depends on the source data. If the source data is physically damaged, it cannot be recovered. and In this case, the clone can still restore the source data.
Description 2: After the source data is damaged, the LUN copy must completely copy the backup data to restore the source data. And clone only Damaged data needs to be recovered, which greatly reduces the recovery time.

Question98: A traditional RAID 10 set always has an even number of disks.

Question99: Which of the following descriptions of refactoring is incorrect?

Question100: After the multi-path software is installed on the host, which of the following descriptions are correct?
(Multiple choice)

Question101: Which of the following options is narrowly stored?

Question102: Multipath software can only be used in IP-SAN.

Question103: The data backed up by the differential backup is relative to the data added and modified after the last full backup.

Question104: In which layer in the architecture of a typical Big Data processing system does the data mining and business intelligence process are performed?

Question105: Which of the following is NOT a port name in Fibre Channel.

Question106: When the RPO is minutes instead of hours the best backup method is traditional Tape backup.

Question107: Which of the following describe DAS? (Multiple Choice)

Question108: Which of the following allows direct physical access to end users?

Question109: 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?

Question110: Which of the following operations is a daily maintenance item in data center storage?

Question111: Which of the following is a valid protocol for a UNIX-based NAS server?
(Multiple Choice)

Question112: In Huawei storage systems that use RAID 2.0+ technology, a hard disk domain can only contain one type of hard disk.

Question113: Xiao Wang, an employee of a company, did the following in the company's storage system: 9:00 Take a snapshot of LUN A and activate it Alive, all the data of the snapshot LUN and the source LUN were modified at 10:00, and the snapshot was rolled back at 11:00.
The following instructions are correct? (Multiple choice)

Question114: Select which of the following which is not a properties of Distributed Object Storage Architecture.

Question115: In data backup and recovery, application testing and data analysis scenarios. HyperClone supports up to 1 master: 8 slave LUN mode. The knowledge points come from HCNA-Storage V3.0 textbooks and official product documentation.
The following descriptions for SAN and NAS are correct: (multiple choices)

Question116: A device has only one WWNN number, but it can have multiple WWPN numbers.

Question117: Which module is not in the disk enclosure of a storage device?

Question118: 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)

Question119: Which of the following methods provides the best RTO?

Question120: Which of the following statements is NOT true for a SAN solution?

Question121: Which of the following system model is a direct representation of the SCSI connection between the SCSI Initiator and Target?

Question122: Which of the following licenses requires at least two OceanStor systems that are connected over a WAN/LAN?

Question123: When a company's customers need to complete data migration between devices, what features can be used to complete? (Multiple choices)

Question124: What are the advantages of SSDs over HDDs?
(Multiple Choice)

Question125: When using LAN-based backups it is best to create a dedicated backup network.

Question126: A reliable ICT infrastructure, to avoid a single point of equipment failure, or even a single point of personnel problems.

Question127: 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

Question128: What is the correct description of RAID 5 as follows? (Multiple choice)

Question129: HUAWEI OceanStor V3 SmartTier can be used to position files to be on specific disk drive types.

Question130: Which of the following statements about LAN-based backup is incorrect?

Question131: What value does thin provisioning technology bring to customers? (Multiple choice)

Question132: Regarding the four disaster recovery modes of HyperMetro, Hot Standby, Warm Standby, and Cold Standby, is the following statement wrong?

Question133: In the backup system, the data that needs to be backed up must go through the media server before being stored in the backup medium.

Question134: SmartThin provided by HUAWEI OceanStor V3 storage systems is a technology that manages storage space by allocating storage resources on demand. Based on virtualization, SmartThin reduces physical storage resources to be deployed, maximizing storage space use efficiency.

Question135: What is the synchronization cycle time limit for asynchronous remote replication?

Question136: Which of the following descriptions of RAID technology are correct? (Multiple choice)

Question137: 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.

Question138: What is wrong with the following description of DAS?

Question139: Which of the following statements is incorrect?

Question140: Depending on the amount of data to be backed up, which of the types are actual backup methods?
(Multiple Choice)

Question141: Application program interface (API) is a set of routines, protocols, and tools for building software applications.

Question142: The server with Linux operating system installed accesses the disk array based on the RAID 5 strategy.
The order is:

Question143: Each organization independently determines which data should be stored and for how long.

Question144: Big Data refers to the process of collecting/ processing and analyzing vast amount of data and information to gain valuable insights.

Question145: The amount of data in an incremental backup is larger than that in a differential backup.

Question146: The following different types of SSD disks have the lowest unit capacity price:

Question147: What are the current challenges of disaster recovery? (Multiple choice)

Question148: 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.

Question149: The process of regenerating all user data and check data on the failed disk in the mirrored array or RAID array is called:

Question150: What is the correct sequence of the overall reconstruction process?
1. Query all CKGs with CK falling on the faulty disk
2. Assign hot spare CK to all these CKGs
3. Update CKG information and release the reconstructed CK
4. Write the reconstructed data to the hot standby CK
5. Through the RAID algorithm, calculate the data on the failed disk based on the data on the normal disk and the check disk

Question151: The following description about the characteristics of the LAN-BASED backup method is incorrect:

Question152: What is included in every backup job?
(Multiple Choice)

Question153: A device can only have one WWPN, but it can have multiple WWNNs.

Question154: 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?

Question155: The following description is correct: (multiple choice)

Question156: 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:

Question157: In the Huawei OceanStor V3 storage system, which of the following descriptions about SmartThin LUN is correct?

Question158: The SmartTier intelligent data grading feature requires three types of hard drives in the storage pool.

Question159: With the advent of the era of big data, the corresponding storage technology is also undergoing changes.
Is the following statement correct? (Multiple choice)

Question160: In HUAWEI OceanStor V3,HyperSnap of a LUN uses the Copy On Write method to keep track of changes blocks

Question161: What are the following descriptions of the three iSCSI connection methods?

Question162: The following are the key characteristics of cloud computing:

Question163: 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)

Question164: Cloud computing business models are: (multiple choices)

Question165: IP drift supports drifting between different types of interface modules.

Question166: 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.

Question167: Which of the following dimensions are often used to express the data used in Big Data scenarios? (Multiple Choice)

Question168: The following are the characteristics of the clustered NAS storage architecture: (multiple choice)

Question169: Which of the following statements are characteristics of pre-copy technology?
(Multiple Choice)

Question170: Most data generated by the Internet industry is structured data, amounting to 80% of total data.

Question171: The following description of IOPS is wrong: