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Huawei HCIP-Big Data Developer V2.0 Sample Questions:

1. implementHBaseWhat parts of the data need to be read for the data read service?
(multiple choice)

A) HMaster
B) HFile
C) HLog
D) MemStore

2. FusionInsight HDin, aboutHivethe data load function (viaHiveofLOADcommand guide input data), which of the following descriptions is wrong?

A) available fromHDFSdirectly into thehivesurface
B) HiveThe data loading process does not parse the specific file content, mainly the process of file transfer
C) It can be directly loaded from the local hard disk of the node where the client is located.hivesurface
D) available fromHiveServerThe local hard disk of the node is directly loaded into thehivesurface

3. Suppose there is an application with10Tables, each table has tens of millions of records, and the number of fields is about20indivual.
Currently usingRedisto cache this10The data of a table, the design of its data structure, which of the following is the best design?

A) usehashstructure, and a table uses ahash key, a row in the table records forhash keyone offield.
B) usestringstructure, each field of each row record of each table uses oneKEY.
C) usehashstructure, each row record of each table uses onehash key,hash keyoffieldThe fields of the corresponding table records, and designKEYEach table adds a different prefix to distinguish it.
D) usestringstructure, each row record of each table uses oneKEY,valueAll fields recorded for a row in a table? ?back value of .

4. Spark SQLIn the table, there are often many small files (the size is much smaller thanHDFSblock size), in this case,Sparkwill enable aTaskto process these small files, whenSQLexist in operationShufleWhen operating, will greatly increasehashThe number of dynamic buckets will seriously affect the performance.

A) True
B) False

5. existFusionInsight HDcluster, aboutkinitOperation command, which of the following statements is wrong?
(multiple choice)

A) A client does not support the simultaneous use of multiple accounts.
B) Only the HMI account can be used.
C) Only the machine account can be used.
D) The ticket obtained by executing this command is intwenty fourIt will time out when it is small and needs to be executed againkinitcommand to log in again.

Solutions: