Deck 8: HCNA-Storage-BSSN (Huawei Certified Network Associate - Building the Structure of Storage Network)

Question 1

Which of the following statements about block virtualization technology for Huawei storage systems are correct?  (Choose all that apply.)

A) A CKG is the unit used in applying for space, releasing space, and relocating data.
B) Data reconstruction efficiency improves significantly.
C) A RAID group is formed in the unit of physical disks.
D) Data is distributed to all disks, fully leveraging the read/write processing capability of a storage system.

Answer 1

A CKG is the unit used in applying for space, releasing space, and relocating data.
Data reconstruction efficiency improves significantly.
Data is distributed to all disks, fully leveraging the read/write processing capability of a storage system.

Question 2

Statement 1: A port can be listed in multiple zones. Statement 2: A switch configuration can contain multiple zones.

A) Statement 1 and 2 are true.
B) Statement 1 is false; Statement 2 is true.
C) Statement 1 is true; Statement 2 is false.
D) Statement 1 and 2 are false.

Answer 2

Statement 1 and 2 are true.

Question 3

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?

A) Cloud
B) Internet Of Things
C) Social Media
D) Big Data

Answer 3

Big Data

Question 4

Which of the following operating systems supports the CIFS protocol natively?

A) Solaris
B) AIX
C) FreeBSD
D) Win7

Question 5

Which statement is true?

A) An extent can be as small as 512 kB and as large as 128 MB.
B) An extent can be 128 MB, but a grain is always 64 kB.
C) An extent can be as small as 64 MB and as large as 512 MB.
D) An extent can be as small as 512 kB and as large as 64 MB.

Question 6

SAN is a storage architecture that connects storage device and application servers through network.

Question 7

What is a storage array?

A) A system that manages the network functions and carries the data traffic from host to storage.
B) A system that handles the interconnection of hosts to disks drives and allows hosts to directly access the disks and use it as local drives.
C) A system that has the management software that can provide access to its sets of hard drives or tape libraries for the purpose of data access and storage.
D) A system that handles the communication of data from end users to its storage location and provide confirmation on successful storage.

Question 8

Which of the following dimensions are often used to express the data used in Big Data scenarios? (Choose all that apply.)

A) Variety
B) Velocity
C) Verticality
D) Volume

Question 9

The only cable type that can be used to connect disk enclosures is the mini SAS cable.

Question 10

Which of the following is not the benefits of converged storage systems?

A) The same device is able to provide both block storage and file storage.
B) Saving of rack space due to integration of equipment into one device.
C) Converged storage system has better data protection compared to other non-converged systems.
D) Unified management of storage resources.

Question 11

Which of the following best describes SDN?

A) Decoupling of the data plane and control plane in networks.
B) Using a software program to manage your network.
C) Using hardware to manage the network.
D) The virtualization of network services to achieve better efficiency and scalability.

Question 12

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

Question 13

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

A) Statement 1 is false and statement 2 is true.
B) Statement 1 is true and statement 2 is false.
C) Statements 1 and 2 are both true.
D) Both statements 1 and 2 are false.

Question 14

Which of the following are the 3 layers of components that storage systems are made up of? (Choose three.)

A) Storage Analysis
B) Storage Solution
C) Storage Software
D) Storage Hardware

Question 15

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

A) The lifespan of hard drive.
B) The presence of mechanical parts.
C) The capacity of hard drive.
D) The performance of the hard drive.

Question 16

In HUAWEI OceanStor V3, which of the following statements about mapping a snapshot is true?

A) Snapshots optionally can be mapped to multiple hosts.
B) All of the answers are true.
C) Snapshots can only be mapped to the same host the original LUN was mapped to.
D) Mapped snapshots are always Read-Only

Question 17

IP SAN uses underlying optical networks to connect servers and storage systems.

Question 18

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

Question 19

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.

A) Statement 1 is false; Statement 2 is true
B) Statement 1 and 2 are true
C) Statement 1 is true; Statement 2 is false
D) Statement 1 and 2 are false

Question 20

Storage Pools cannot be created with a single tier of disks.

Question 21

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.

A) Statement 1 and 2 are true.
B) Statement 1 is true; Statement 2 is false.
C) Statement 1 is false; Statement 2 is true.
D) Statement 1 and 2 are false.

Question 22

Statement 1: We have 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.

A) Statement 1 is true and statement 2 is false.
B) Statements 1 and 2 are both true.
C) Both statements 1 and 2 are false.
D) Statement 1 is false and statement 2 is true.

Question 23

Which of the following occurs after multipathing software is installed on a host? (Choose all that apply.)

A) Improves link reliability and prevents the failure of a single link from causing a system failure.
B) Sets up connection between a storage device and the host.
C) Avoids logical errors from occurring in the operating system as a result of multiple reachable paths to the same LUN.
D) Maps a LUN to the host.

Question 24

Data and Information are the same thing.

Question 25

Which of the following statements is incorrect?

A) Physical volumes reside on the lowest layer in the logical volume manager. Logical volumes and volume groups are dependent on physical volumes.
B) A logical volume can reside on multiple physical disks. Data storage can be physically discontinuous.
C) Multiple volume groups can be created on the space of a logical volume.
D) A volume group is built on physical volumes. A volume group can contain one physical volume group or multiple physical volumes.

Question 26

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.

A) Statement 1 and 2 are true.
B) Statement 1 and 2 are false.
C) Statement 1 is true; Statement 2 is false.
D) Statement 1 is false; Statement 2 is true.

Question 27

In HUAWEI OceanStor V3, which licensed feature is best described as: periodically detects hotspot data and promotes them from low-speed storage media to high-speed media.

A) SmartMigration
B) SmartTier
C) SmartMove
D) SmartMotion

Question 28

Which of the following methods provides the best RTO?

A) Replication
B) Disk-To-Tape
C) Virtual Tape Library
D) Disk-To-Disk-To-Tape

Question 29

Match the RAID level with the characteristics. (1)RAID 0 (2)RAID 5 (3)RAID 10 (4)RAID 6 (a) Cost effective (b)Allows double disk failure (c)Highest performance (d)No data protection.

A) 1 - d; 2 - a; 3 - b; 4 - c
B) 1 - a; 2 - d; 3 - b; 4 - c
C) 1 - a; 2 - b; 3 - c; 4 - d
D) 1 - d; 2 - a; 3 - c; 4 - b

Question 30

Grid storage employs the combination of large scale serial distributed storage to provide even distribution of storage across all nodes.

Question 31

Storage refers to physical devices that is able to store and save data for user access.

Question 32

In a Red Hat Linux 5 operating system, which command is used to mount the sdb5 in the dev directory to the sdb5 in the mnt directory?

A) df/dev/sdb5/mnt/sdb5
B) in/dev/sdb5/mnt/sdb5
C) cat/dev/sdb5/mnt/sdb5
D) mount/dev/sdb5/mnt/sdb5

Question 33

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

A) Disk platter is responsible of storing data in binary form.
B) The disk connector is responsible of connection and rotation of the platter.
C) The spindle is responsible for sending commands to the disk head.
D) The actuator is responsible of moving the Read/Write arm.

Question 34

Which of the following is NOT a component in an IP SAN?

A) iSCSI storage device
B) Fibre Channel switch
C) Ethernet switch
D) NIC

Question 35

Select the correct statements that describe the properties of bus technology in ICT architecture. (Choose all that apply.)

A) Bus technology are only available in serial form.
B) Bus can be divided into internal bus and external bus.
C) The CPU needs to go through the memory to directly access the Bus.
D) Bus is a communication system that transfers data between internal components and external components.

Question 36

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

Question 37

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.

A) Statement 1 and Statement 2 are both True.
B) Statement 1 is False; Statement 2 is True.
C) Statement 1 and Statement 2 are both False.
D) Statement 1 is True; Statement 2 is False.

Question 38

What is the purpose of context for data?

A) Context is optional when collecting and analyzing data.
B) Context gives comparison between data and information.
C) Context gives meaning to the data collected. Without context the data is meaningless.
D) Context is only found in data and not in information.

Question 39

What statement is true?

A) IT managers should determine the retention period for data.
B) Information Life Cycle management must be based on the costs for the storage hardware.
C) Storing a lot of random, unstructured data can become a management problem for many companies.
D) Technology is the main factor that decides which disaster recovery method will be implemented.

Question 40

Which of the following statements are characteristics of pre-copy technology? (Choose all that apply.)

A) Improves system reliability.
B) Reduces system performance.
C) Migrates data from a suspected faulty disk to a hot spare disk immediately after the error count of the suspected faulty disk exceeds the preset threshold.
D) Reduces the occurrence of reconstruction.

Question 41

Which of the following statements about RAID 5 are correct? (Choose all that apply.)

A) RAID 5 uses the XOR algorithm for parity.
B) RAID 5 tolerates the failure of a maximum of two member disks without losing data.
C) RAID 5 has fixed parity disks.
D) RAID 5 writes data by stripes.

Question 42

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

A) LD -> CKG -> CK -> Extent -> LUN
B) LD -> Extent -> CKG -> CK -> LUN
C) LD -> CK -> CKG -> Extent -> LUN
D) LUN -> CK -> CKG -> Extent -> LD

Question 43

For all operating systems there is a specific version of Huawei UltraPath multipathing software.

Question 44

Statement 1: A Solid State Disk drive can withstand strong vibrations. Statement 2: A Solid State Disk drive has only a few mechanical parts.

A) Statement 1 is true; Statement 2 is false
B) Statement 1 and 2 are false
C) Statement 1 and 2 are true
D) Statement 1 is false; Statement 2 is true

Question 45

In a good Disaster Recovery Plan there are no single points of failure, not even with any single person.

Question 46

Which are characteristics of the HUAWEI OceanStor V3 hardware? (Choose all that apply.)

A) SAN and NAS convergence
B) SSD and HDD convergence
C) No need for heterogeneous convergence anymore
D) Primary and Backup convergence

Question 47

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

A) Infrastructure As A Service (IaaS).
B) Storage As A Service (STaaS).
C) Software As A Service (SaaS).
D) Platform As A Service (PaaS)

Question 48

Statement 1: NAS systems must be interconnected using fiber optic cables. Statement 2: A network protocol is the way in which an operating system accesses a file that is on a network connected device.

A) Statement 1 is false and statement 2 is true.
B) Statements 1 and 2 are both true.
C) Statement 1 is true and statement 2 is false.
D) Both statements 1 and 2 are false.

Question 49

What is the main purpose of hot swapping technology in disk enclosures?

A) To be able to swap out the disks when the temperature is too hot.
B) To swap out the hard disks after proper shutdown of storage system.
C) Maintain the temperature of the disks to prevent overheating.
D) To swap out the hard disks without turning off the storage system.

Question 50

Which of the following items is NOT mandatory in a Fibre Channel SAN? (Choose all that apply.)

A) Windows operating system
B) Storage device
C) Fibre Channel switch
D) Fibre Channel HBA

Question 51

Statement 1: RAID 2.0+ offers better protection against data loss than traditional RAID and it performs much better. Statement 2: To rebuild a RAID 2.0+ protected failed drive takes a lot of time as all drives are involved in the rebuild of the spare disk.

A) Statement 1 is true; Statement 2 is false.
B) Statement 1 and 2 are false.
C) Statement 1 is false; Statement 2 is true.
D) Statement 1 and 2 are true.

Question 52

In storage systems, what does throughput refer to?

A) Amount of signals that can be sent or received by processors in a period of time.
B) Amount of calculations that can be processed in a period of time.
C) Amount of data that can be received and written to the storage medium in a period of time.
D) Amount of data that can be transmitted and received over network in a period of time.

Question 53

Which of the following statements are NOT true? (Choose all that apply.)

A) Both the CIFS as well as the NFS protocol requires file format conversion.
B) One disadvantage of CIFS is that Windows clients must be equipped with dedicated software.
C) NFS is a stateless protocol while CIFS is a stateful protocol. NFS can be automatically recovered from a fault while CIFS cannot.
D) CIFS is a network-based sharing protocol. It has high demands on network transmission reliability, so it usually uses TCP/IP.

Question 54

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

A) Large investment
B) Poor scalability
C) Difficult resource sharing
D) Decentralized management

Question 55

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

Question 56

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

Question 57

A customer needs zoning configured in a Fibre Channel switch. The customer frequently changes the patch points in the infrastructure. What zoning method is preferred then?

A) Port zoning because it is more flexible when it comes to changing patch points.
B) Soft zoning because it is more flexible when it comes to changing patch points.
C) Zoning is not required in a FC SAN.
D) Port zoning and Soft zoning should always be used together.

Question 58

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

Question 59

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

A) Backup policy
B) Backup media
C) Backup server
D) Backup software

Question 60

Which of the following is an example of unstructured data? (Choose all that apply.)

A) SQL Databases
B) Images
C) Video
D) NoSQL Databases

Question 61

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. (Choose three.)

A) Internal Input.
B) External Input.
C) Internal System Generation.
D) External System Generation.

Question 62

The disadvantage of full backup is that it requires the last full backup and the most recent differential backup to fully restore data.

Question 63

The failure of an SSD is more predictable than that of other disk technologies.

Question 64

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

A) 12
B) 3
C) 6
D) 9

Question 65

The maintenance network port is used, by the DeviceManager, for daily management.

Question 66

Statement 1: OceanStor Dorado systems are designed for high performance environments. Statement 2: OceanStor Dorado systems are so-called All Flash Arrays.

A) Statement 1 and 2 are true
B) Statement 1 and 2 are false
C) Statement 1 is true; Statement 2 is false
D) Statement 1 is false; Statement 2 is true

Question 67

A differential backup holds all changes that were made since the last successful full backup.

Question 68

Which of the following is not a port type defined by Fibre Channel?

A) E-Port
B) F-Port
C) NL-Port
D) G-Port

Question 69

Data is the record that reflects the attributes of objective things and is the physical manifestation of information.

Question 70

Which of the following storage devices are non volatile? (Choose all that apply.)

A) Hard Disk
B) RAM
C) Magnetic Tape
D) DVD

Question 71

About HUAWEI OceanStor V3, the following 2 statements: Statement 1: With the SmartTier feature the SSD disks are in the Performance Tier. Statement 2: No more than 3 tiers can exist in the OceanStor V3 storage arrays.

A) Statement 1 is true; Statement 2 is false.
B) Statement 1 and 2 are true.
C) Statement 1 and 2 are false.
D) Statement 1 is false; Statement 2 is true.

Question 72

You are tasked to setup a SAN storage system that has the following requirements: (1) To minimize the workload on server resources. (2) Optimize the capabilities on storage system for deduplication. Select the following options that fits the scenario above. (Choose all that apply.)

A) Usage of TCP/IP offload engine technology to do processing on HBA cards on the server to minimize the usage of server resources.
B) Offload the storage processing tasks to the server to optimize the data deduplication.
C) Adding hardware acceleration module to the storage system to optimize the performance of data deduplication.
D) Use NIC instead of HBA cards to minimize the host resource consumption during I/O operations.

Question 73

The mount command is used in Linux-based clients to connect the client to the NFS share.

Question 74

A company that primarily has static data (like map data or JPG files) does not profit much from the HUAWEI OceanStor V3 SmartTier functionality.

Question 75

Which of the following are business models of cloud computing? (Choose all that apply.)

A) MaaS
B) IaaS
C) PaaS
D) SaaS

Question 76

Statement 1: Traditional PC's are usually cheaper to maintain than a cloud desktop. Statement 2: In a cloud system, data is centrally stored and managed.

A) Statement 1 and 2 are true.
B) Statement 1 and 2 are false.
C) Statement 1 is true; Statement 2 is false.
D) Statement 1 is false; Statement 2 is true.

Question 77

Which of the following statements about reconstruction is incorrect?

A) RAID 0, 1, 5, 6, and 10 support reconstruction
B) Reconstruction affects system performance
C) Reconstruction does not interrupt system services
D) Reconstruction requires hot spare disks

Question 78

You are tasked with designing a block and file storage system that has high performance in data transmission over Ethernet network to clients with mixed operating system of Windows and Linux within the local office. Select the proper components and ICT architecture that will fit the above requirements. (Choose all that apply.)

A) Implement a NAS storage with the CIFS file system.
B) Implement an IP SAN network with Ethernet switches.
C) Implement a FC SAN with FC switches and SFP.
D) Implement a NAS storage with the NFS file system.

Question 79

CIFS can be run on UDP as well as on TCP.

Question 80

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