H13-611 : HCNA-Storage-BSSN (Huawei Certified Network Associate – Building the Structure of Storage Network) : Part 04
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Storage refers to physical devices that is able to store and save data for user access.
- FALSE
- TRUE
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Which of the following cloud service model deals with providing storage, network, servers and virtualization of resources?
- Infrastructure As A Service (IaaS).
- Storage As A Service (STaaS).
- Software As A Service (SaaS).
- Platform As A Service (PaaS)
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Which of the following is NOT the characteristics of the active-active mode of a storage controller?
- The primary controller processes the I/O requests from application servers and the secondary controller is in the idle state.
- The active-active mode achieves load balancing, full utilization of resources, and system performance improvement.
- Two controllers process the I/O requests from application servers concurrently.
- If a controller becomes faulty, the other takes over the work of the faulty controller without disrupting ongoing services.
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Which is the correct formation order of the following elements in RAID 2.0+?
- LD -> CKG -> CK -> Extent -> LUN
- LD -> Extent -> CKG -> CK -> LUN
- LD -> CK -> CKG -> Extent -> LUN
- LUN -> CK -> CKG -> Extent -> LD
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Which is NOT the limitation of DAS, compared with SAN?
- Large investment
- Poor scalability
- Difficult resource sharing
- Decentralized management
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Which statement is true about RAID 2.0+?
- RAID 2.0+ has a higher RAID overhead than traditional RAID types.
- Chunks belonging to a file will never be written on the same physical disk.
- RAID 2.0+ allows for a complete enclosure to fail without causing data loss.
- With RAID 2.0+ it is supported to select no hot spare disks.
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It is a hard-disk failure that occurs when a read-write head of a hard disk drive comes in contact with its rotating platter, resulting in permanent and usually irreparable damage to the magnetic media on the platter surface. Which of the following fits the above description?
- Electrical Failure.
- Bad Sector.
- Bad Platter Area.
- Head Crash.
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Which are characteristics of the HUAWEI OceanStor V3 hardware? (Choose all that apply.)
- SAN and NAS convergence
- SSD and HDD convergence
- No need for heterogeneous convergence anymore
- Primary and Backup convergence
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Which of the following statements are NOT true? (Choose all that apply.)
- Both the CIFS as well as the NFS protocol requires file format conversion.
- One disadvantage of CIFS is that Windows clients must be equipped with dedicated software.
- NFS is a stateless protocol while CIFS is a stateful protocol. NFS can be automatically recovered from a fault while CIFS cannot.
- CIFS is a network-based sharing protocol. It has high demands on network transmission reliability, so it usually uses TCP/IP.
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Which of the following items is NOT mandatory in a Fibre Channel SAN? (Choose all that apply.)
- Windows operating system
- Storage device
- Fibre Channel switch
- Fibre Channel HBA
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Storage controllers can be separated from the chassis of disk enclosures. It does not need to be integrated in design with the disk enclosures.
- TRUE
- FALSE
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Which of the following is correct? (Choose all that apply.)
- SmartTier supports a High Performance, a Performance, a High Capacity and a Capacity Tier.
- Only when a snapshot is activated will the system record all changes to the original LUN.
- To write data to the secondary LUN of a clone pair, the pair must be split.
- A snapshot needs to be removed from the LUN group to be fully unmapped.
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In a NAS environment entire files are sent across the Ethernet based network. The NAS server however stores these files in the form as SCSI blocks mostly on multiple disks using RAID protection.
- FALSE
- TRUE
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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
- Statement 1 is true; Statement 2 is false.
- Statement 1 and 2 are false.
- Statement 1 is false; Statement 2 is true.
- Statement 1 and 2 are true.
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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.
- Statements 1 and 2 are both true.
- Statement 1 is true and statement 2 is false.
- Statement 1 is false and statement 2 is true.
- Both statements 1 and 2 are false.
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Statement 1: The higher the number used to indicate the RAID level, the higher the overhead.
Statement 2: RAID 10 stripes the data, then mirrors the stripe set.
- Statements 1 and 2 are both true.
- Statement 1 is true and statement 2 is false.
- Statement 1 is false and statement 2 is true.
- Both statements 1 and 2 are false.
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Which of the following statements about RAID 5 are correct? (Choose all that apply.)
- RAID 5 uses the XOR algorithm for parity.
- RAID 5 tolerates the failure of a maximum of two member disks without losing data.
- RAID 5 has fixed parity disks.
- RAID 5 writes data by stripes.
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When a RAID configuration is in a degraded state it means that no data has been lost yet.
- FALSE
- TRUE
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Dual-switch networking is widely applied in Fibre Channel SANs. Which of the following are its characteristics? (Choose all that apply.)
- Two Fibre Channel switches are deployed in a SAN for connecting to the two controllers of a storage device.
- Per host two fibre channel ports should be available. The two Fibre Channel ports connect to two Fibre Channel switches.
- As multiple paths exist, the dual switch networking mode supports link redundancy but does not support load balancing.
- The ports on the two Fibre Channel switches connecting to the hosts and storage device must reside in the same zone.
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Statement 1: A Solid State Disk drive can withstand strong vibrations.
Statement 2: A Solid State Disk drive has only a few mechanical parts.
- Statement 1 is true; Statement 2 is false
- Statement 1 and 2 are false
- Statement 1 and 2 are true
- Statement 1 is false; Statement 2 is true
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