1. (radio) OceanStor 18000 storage system is more graphic system design, which one of the following is true?
A. business plane using GE channel for data transmission,
B. business plane connection between a host IO channel, disk I/o channel and GE exchange channel,
C. redundancy between each plane, plane problems arise when business, can be used to switch the control plane to transmit data to ensure business continuity,
D. management flat GE exchange channel failure, can use flat PCIe exchange channels as the management spare,
2. (judge) in OceanStor 18000 storage system, when the controller and the hard disk box link failure, the controller will need to access I/o request is forwarded to another within the engine controller, so as to complete access to the hard disk data,
3. (radio) of the following about the working principle of CIFS which one is correct?
A. before Shared connections, establish session first, and then to negotiate agreements,
B. after sharing connections to file operations,
C. in the negotiation phase agreement for safety certification,
D. file operation is done, don't need a client request, the server will automatically disconnect Shared,
4. (radio) understanding of passive FTP transfer mode which one is correct?
A. server initiated by data connection request,
B. FTP client will use a pasv command to tell their own FTP server IP and port number,
C. the FTP server will use a pasv command told FTP client own IP and port number,
D. a data connection request target port may be 29999,
5. (radio) which of the following is an huawei OceanStor V3 series storage products supported by the maintenance of the software?
A. OceanStor eSDK
B. OceanStor Replication Director
C. OceanStor ToolKit
D. OceanStor UltraPath
6. (multiple) which of the following options belong to product of OceanStor 18500 Scale - out the function of the technical support?
A. through the engine scale - out lateral extension, realize the CPU, memory, ports, capacity on-demand smooth extension, such as
B. support from controlling the minimum extension to maximum 16 controller,
C. support from controlling the minimum extensions to the eight largest controller,
D. support from minimum double extended to 32 biggest controller,
7. (choose more) about huawei OceanStor V3 eDevLUN SmartVirtualization characteristics and external LUN description correct is:
A. can configure remote replication on eDevLUN value-added business,
B. eDevLUN storage pool of storage system in the end do not take up the actual physical space,
C. external LUN in heterogeneous storage system, displayed on the DeviceManager for distal LUN, eDevLUN located at the end of the storage system,
D. eDevLUN form one-to-one relationship with external LUN, application server through the read and write operations to achieve outside of eDevLUN LUN data access,
8. (pops) in huawei OceanStor V3 SmartMigration, split refers to the complete the source LUN LUN and target data synchronization, lifted its Pair relations, about the split of the following statements is wrong:
A. system will LUN information exchange in the split point in time,
B. when SmartMigration migration status to "normal", can be divided,
C. can implement multiple SmartMigration Pair split,
D. support Taiwan's secession from China by the manual and automatic two kinds of split mode,
9. () in the description of huawei OceanStor V3 SmartMigration characteristic principle, data migration can be divided into business data synchronization and LUN information exchange of two phases,
10. (radio) in OceanStor V3, at some point to a LUN snapshot created when there are data to source LUN, which one of the following is true?
A. the snapshot Volume data Volume there will be changes in regional data
B. COW sharing map will have change
C. the mapping table (exclusive) there will be changes
D. the writes data will be copied to the source LUN COW space
11. (pops) in huawei OceanStorV3, which of the following is about cloning reverse sync right:
A. when master-slave Pair of LUN state is divided, can perform A reverse sync, after reverse sync automatically divided,
B. reverse sync is full synchronization, does not support incremental synchronization,
C. reverse synchronization process, the main LUN received write IO request, if the host access blocks of data synchronization, then write in the LUN to synchronize,
D. reverse sync process, access to a block of data has reverse sync, if it is a read request, the main LUN directly read data,
12. (radio) following about huawei OceanStor V3 WORM features, describe which one is not correct?
A. when A file is locked, the protection of the file time may be extended by manual operation or shortened,
B. locked the file when the file system WORM clock value is greater than the atime values, the file will be in a state of expired,
C. when the file is in a state of additional in WORM file system regulations clock than file after the expiration date, the file will be the additional state migrated to expire,
D. WORM files in the file system, after entering the protection, only when the term of protection of the WORM clock value is greater than the file, the file is from the locked state to enter expired,
13. (judge) in small random IO write application scenarios, decrease the system performance, low water level values
14. (multiple) which of the following does not belong to the storage device hardware failure?
A. BBU failure
B. License failure
C. hard disk failure
D. RAID failure
15. (radio) which of the following options do not belong to OceanStor Toolkit tool inspection functions?
A. provide inspection standard and repair advice
B. support mail sent inspection report
C. support to upgrade the business state of inspection before
D. support timing checking
16. (judge) in huawei OceanStor V3 storage system, if the hard quota for a particular file system configuration, each of the file system I/O write operations, will check the operation of space capacity, file number is more than the hard quota, if the new incremental more than hard quotas, refused to the I/O write operation, report to the user space is insufficient,
17. (radio) to delete the following about huawei OceanStor V3 heavy compression principle to describe which one is not correct?
A. when heavy hardware delete compression accelerator card, can take up heavy delete compression storage system CPU resources, are used to calculate the fingerprint information, compression and decompression process,
B. the file system can be set up, the minimum weight delete granularity is 512 KB,
C. support fixed length is in the process of heavy delete, delete the storage system according to the same heavy delete data to the file system block size to delete,
D. online heavy delete refers to when the data is written to the file system to delete, if it is to repeat data previously saved data blocks are removed, write new data in the system,
Under 18. (choose more) about huawei OceanStor V3 file system snapshot principle to describe the correct is:
A. prior to create A snapshot of A file system, data modification will cover the original data,
B. success after the snapshot is created, and will be in the root directory of the file system under a special snapshot directory, the directory contains all of the file system's snapshot,
C. when creating snapshot for file system, need to copy the file system and save the root node and all its directory tree node, formed a snapshot of the file system,
D. the newly created snapshot does not contain any actual data, only the pointer to the file system data,
19. (multiple) which of the following is the main indicators of the storage system performance?
A. IOPS
B. response time
C. bandwidth
D. memory utilization
20. (judge) when Oceanstor V3 storage controller write the amount of data in the Cache more than write Cache when high water level, the system will continue to open brush set thread until reach under high water level data,

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