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An application requires simultaneous and twoFusionInsightsCluster interaction: both need to access the cluster1ofHBaseservice, need to visit

Ask the cluster2ofHiveServe;

So which of the following operations are required? (multiple choice)

A.

in the cluster1Create the account required for this application on theHBaseServe

B.

in the cluster2created onAThe account with the same name in the options, and set this account to be able to access the cluster'sHiveServe

C.

Aoptions andBThe account created by the option must belong tosupergroupGroup

D.

cluster1and cluster2Complete the mutual trust operation

HDFSclient withNcopy toHDFSWhen writing a file, if one of the replicas fails to write, all replicas will return to writing.

Entry failed.

A.

True

B.

False

HDFSIn application development of , which of the following areHDFSInterfaces supported by the service? (multiple choice)

A.

BufferedOutputStream.write

B.

BufferedOutputStream.flush

C.

FileSystem.create

D.

FileSystem.append

SparkWhat kind of parameter setting methods does the application have? (multiple choice)

A.

in the application configuration filespark-defaults.confconfigure in

B.

When submitting your application, pass—confmake settings

C.

In the application code, passSparkContextofsetPropertymethod to set

D.

In the application code, passSparkConfobject to set

FusionInsight HDin, aboutHiveandSparksql, which of the following descriptions are correct? (multiple choice)

A.

Both are available externallySQLor classSQLability

B.

Both can run onMapReduceon the computational framework

C.

Both are available via table fields andHBaseAccess by field mappingHBasedata on

D.

Both can run onSparkon the computational framework

existFusionInsight HDmiddle,FlumeIn a configuration file, if there are multiplesource,butsourceThe name cannot be repeated.

A.

True

B.

False

HiveWhich of the following table types are supported? (multiple choice)

A.

Partition Table

B.

bucket table

C.

Tilt table

D.

partition+bucket table

writingMapReduceWhich two interfaces are usually required to be implemented by developers?

A.

mapandcombine

B.

reduceandcombine

C.

combineandsort

D.

mapandreduce

FusionInsight HDin, aboutHivethe data load function (viaHiveofLOADcommand to import data), the following description

What is wrong?

A.

available fromHDFSdirectly into thehivesurface

B.

available fromHiveServerThe local hard disk of the node is directly loaded into thehivesurface

C.

It can be directly loaded from the local hard disk of the node where the client is located.hivesurface

D.

HiveThe data loading process will not parse the specific file content, mainly the process of file transfer

forN(N>1) copies of stored documents,HDFSThe client initiates a read file request. If the read replica node fails, the

If the connection fails, it will not go to other replica nodes for reading.

A.

True

B.

False

In the online log query scheme, the?processing to complete the calculation work. During the whole calculation process, the intermediate calculation results need to be

For temporary storage, which of the following components are suitable for storing intermediate calculation results? (multiple choice)

A.

HDfS

B.

HBase

C.

Kafka

D.

Redis

HBaseFilters can set column names or column values as filter conditions, and support the use of multiple filters at the same time.

A.

True

B.

False

pass throughHBaseofcreateTableThe method creates a table, what parameters must be passed in?

A.

Table Name

B.

table names and columns

C.

Table names and column families

D.

can be empty

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

A.

Only the HMI account can be used.

B.

Only the machine account can be used.

C.

A client does not support the simultaneous use of multiple accounts.

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.

existFlumeDuring cascaded transfers, you can usefail overmode transfer, so that if the next hop isFlumenode failure or

When the data is received abnormally, it can automatically switch to another way to continue transmission.

A.

True

B.

False