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السؤال #1
Fusionlnsigt HD which of the following components can be used for data collection? (multiple choice)
A. Flume
B. Loader
C. HBase
D. MapReduce
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اجابة صحيحة: AB
السؤال #2
aboutStreamingthe topology (Topology), which of the following descriptions is wrong?
A. neTopologyOnly one can be specified to startWorkerprocess
B. neTopologyis made up of a group ofSpoutcomponents andBotcomponents passStream GroupingsA connected directed acyclic graph (DAG)
C. opologywill run until it is explicitlykill
D. usiness logic is encapsulated inTopologymiddle
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اجابة صحيحة: A
السؤال #3
YARNIn the service, if you want to give the queueQueueAset capacity to30%, which parameter should be configured?
A. yarm
B. yam
C. yarm
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اجابة صحيحة: C
السؤال #4
FusionInsight HD V100R002C60in, aboutHiveofPythonInterface type, which of the following descriptions is incorrect?
A. RequirePythonversion no lower than2
B. Client must havesetuptools, and the version is not lower than5
C. hive_python_clientscript provides direct executionSQLfunctions, such ashive_python_client'show tables'
D. PythonSecondary development does not support secure clusters
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اجابة صحيحة: D
السؤال #5
A project requires Internet access to a certain area? ?Save it, and search the full text of these Internet records to see if there is any? ?information, with to prevent crime in the region.In this scenario, which of the following options is the best?
A. existSolrCreate an index and save the data, and return all the data during full-text search
B. existHBasestore data on theHBaseThe filtering characteristics of , satisfy fuzzy matching query
C. When storing data, inSolrindex on theHBaseStore complete data? ?when, throughSolrFull-text search to obtain and record record key information, through the key information inHBasefor the full record
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اجابة صحيحة: C
السؤال #6
FusionInsight HDofHiveIn the application, there are the following scenarios:? ? ?Storage files have higher? ?efficiency, and mostMinute? ?Only a part of the letter is involved in the file, this scenario is suitable for using a column file (ORC F??)storage.
A. True
B. False
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اجابة صحيحة: A
السؤال #7
FusionInsight HDmiddle,OozieBefore submitting the job, you need to upload the configuration files andjarpackage toHDFS
A. True
B. False
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اجابة صحيحة: A
السؤال #8
Which of the following causesHDFSofNameNodeEntersafemode(safe read-only mode)? (multiple choice)
A. Active and standbyNameNodeThe disk space where the metadata is located is insufficient
B. The number of missing blocks exceeds the threshold
C. Lost replicas exceed the threshold
D. The corrupted replica exceeds the threshold
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اجابة صحيحة: AB
السؤال #9
existHBaseWhich of the following interfaces or classes does not need to be involved in the implementation of business logic for writing data?
A. Put
B. HTable
C. HBaseAdmin
D. PutList
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اجابة صحيحة: C
السؤال #10
FusionInsight HDin, aboutHive UDFsSecondary development, is the following description correct? (multiple choice)
A. ser definedUDFBefore being used, it needs to beHivecreate this in the systemUDF
B. ser definedUDF, can be added according to the actual situationdeterministicandstatefulletc
C. ser definedUDF, information such as summary and status is not allowed
D. nder the secure cluster, user-definedUDF, it is recommended to create it once before each use
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اجابة صحيحة: A
السؤال #11
HDFSused is"Write once, read many"file access model. So it is recommended that a file be created, written and closed After closing, do not modify it again.
A. True
B. False
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اجابة صحيحة: A
السؤال #12
FusionInsight HD in which ways can you viewOozieDebug results of the job? (multiple choice)
A. CheckOozieofJava APIWhether the returned result is as expected
B. pass throughHueofworkflowDashboard to view program running results
C. pass throughHue's file browser to see ifHDFSThe specified directory produces the expected file
D. Oozieself-containedWebThe interface can also view the job execution results
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اجابة صحيحة: ABCD
السؤال #13
existFusionInsight HDofHBase, which of the following scenarios will not triggerFlushoperate?
A. AWhen the client initiates a scan request, it willscan cachingset too large
B. BInitiate by client-specified methodFlushdo
C. CRegionServerTotal memory exceeds threshold
D. DRegionofMemStoreset over threshold
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اجابة صحيحة: A
السؤال #14
existMapReduceIn application development of , which of the followingJAVA, Class responsible for managing and running a computational task?
A. lob
B. Context
C. FileSystem
D. Configuration
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اجابة صحيحة: A
السؤال #15
existFusionInsight HDproductSolrDuring application development, you canSolr Admin UIrightCollectionDo some verification.Below aboutSolr Admin UIIs the statement correct? (multiple choice)
A. clickClouddownTree,CheckSolr CloudmiddleCollections, a configuration set, andlive_nodesand other metadata information
B. clickCloud, see eachCollectionunder eachShardReplicadistribution and status
C. enter aCollectionofShard ReplicaofCore Overviewinterface, you can view theReplicaIndex the actual documentNumber of bars, storage size and location information
D. Solruser group,Solr adminrole andSuper groupof users have access toSolr Admin UI
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اجابة صحيحة: ABCD
السؤال #16
In the V100R002C60 version of the FusionInsight HD system, Hive only supports query services based on the MapReduce engine, and does not support query services based on the Spark engine.
A. rue
B. alse
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اجابة صحيحة: B
السؤال #17
An application requires simultaneous and twoFusionInsightsCluster interaction: both need to access the cluster1ofHBaseservice, need to visitAsk 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
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اجابة صحيحة: ABD
السؤال #18
RedisofLISTData structure, suitable for which of the following scenarios? (multiple choice)
A. Build queuing systems, such as message queues
B. uniqOperations, such as getting the ranking value of all data in a certain period of time
C. get latestNdata operations: for example, for a certain microblog, get the latest10comments
D. Simulate stack operations
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اجابة صحيحة: ACD
السؤال #19
RDDavailable fromHadoopCompatible file system generation, after generation, it can be generated by callingRDDcalculation child pairRDDThe data is partially updated.
A. True
B. False
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اجابة صحيحة: B
السؤال #20
existSpark, the accumulator can realize high-speed parallel counter and variable summation; inSparkduring application development,only inDriverGet the value of this counter on .
A. True
B. False
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اجابة صحيحة: A
السؤال #21
FusionInsight HDmiddle,OozieBefore submitting the job, you need to upload the configuration files andjarpackage toHDFS
A. True
B. False
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اجابة صحيحة: A
السؤال #22
In the implementation of the business logic of HBase writing data, which of the following interfaces or classes does not need to be involved?
A. Table
B. ut
C. BaseAdmin
D. utList
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اجابة صحيحة: C
السؤال #23
existFusionInsight HDproduct,KafkaWhat is the role name of the service?
A. Producer
B. Broker
C. Consumer
D. ZooKeeper
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اجابة صحيحة: B
السؤال #24
FusionInsight HDsystematicV100R002C60version,HiveOnly supports based onMapReduceEngine query service,not supported based onSparkEngine query service.
A. True
B. False
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اجابة صحيحة: A
السؤال #25
aboutFlumeWhich of the following descriptions is correct?
A. (1) data fromsourcearrivechannel;(2)sinkfromchannelfetch data
B. (1) data fromchannelarrivesource;(2)sinkfromsourcefetch data
C. (1) data fromsinkarrivechannel;(2)sourcefromchannelfetch data
D. (1) data fromchannelarrivesource;(2)sinkfromsourcefetch data
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اجابة صحيحة: A
السؤال #26
FusionInsight HDin useStreamingofA, CKWhich of the following statements is true? (multiple choice)
A. enabledAckerLater,StreamingIt will identify the failure to sendTupleAnd automatically resend without human intervention
B. AckerThe message that will identify the processing timeout or processing failure isfail
C. fromspoutstarted, formedTupleFailure of any link in the tree will mark the entire tree as failed
D. The application needs to be inspoutoffail() interface method to implement message resend logic
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اجابة صحيحة: BCD
السؤال #27
existFusionInsight HD where can I viewMapReduceThe result of running the application?
A. FusionInsight Managerofwebinterface
B. Loader Webinterface
C. Solr webinterface
D. Yarn Webinterface
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اجابة صحيحة: D
السؤال #28
A large-scale production enterprise plans to transform its internal logistics data and sales data into big dat
A. The design department provides data storageAnalysis of the program, which of the following statements are correct?
B. HBaseIt can store massive data and support dynamic expansion, which can fulfill the storage requirements of logistics and sales data
C. HbaseSupport colleges and universities to read immediately, and can complete real-time analysis and command of the logistics situation through reasonable design
D. Logistics data is very sparse,HBaseCan handle sparse data efficiently
E. HBaseIt can be built on ordinary commercial servers, and the construction cost is relatively low
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اجابة صحيحة: ABCD
السؤال #29
FusionInsight HD a completeStreaming CQLWhich of the following parts does the application contain at least? (multiple choice)
A. Create an input stream
B. Create output stream
C. Business action statements (such asSELECT,INSERT,JIONWait)
D. Apply commit statement
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اجابة صحيحة: ABC
السؤال #30
existFusionInsight HDmiddle,SparkBy defaultYARNAs a cluster resource management system.
A. rue
B. alse
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اجابة صحيحة: A
السؤال #31
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. 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
C. usestringstructure, each field of each row record of each table uses oneKEY
D. usestringstructure, each row record of each table uses oneKEY,valueAll fields recorded for a row in a table? ?back value of
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اجابة صحيحة: B
السؤال #32
FusionInsight HDsystem, aboutHiveWhich of the provided file formats is not a columnar file?
A. CRC
B. Parquet
C. RCFile
D. TextFile
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اجابة صحيحة: D
السؤال #33
existKafka, which of the following commands can view aTopicHow many partitions are there?
A. Kafka-topics
B. Kafka-topics
C. kafka-topics
D. kafka-topics
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اجابة صحيحة: A
السؤال #34
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
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اجابة صحيحة: A
السؤال #35
RDDasSparkThe core object, which has the following characteristics? (multiple choice)
A. read only
B. partition
C. fault tolerance
D. efficient
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اجابة صحيحة: ABCD
السؤال #36
When a task is submitted toYARNIn the cluster, which of the following options will generate ajob id?
A. ResourceManager
B. Contaioner
C. AppMaster
D. NodeManager
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اجابة صحيحة: A
السؤال #37
which come downRedisIs the command an atomic operation?
A. INCR(increment the stored digital value by one)
B. HINCRBY(for the hash tablekeydomain infieldvalue plus incrementincrement)
C. LPUSH(for linked listspushoperate)
D. All of the above
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اجابة صحيحة: D
السؤال #38
A large-scale production enterprise,tPlan to analyze the internal logistics data and sales datat,Assumeiout of the wayTeffectganalysis, which of the following statements are correct? (multiple choice)
A. HBaseIt can store massive data and support dynamic expansion, which can fulfill the storage requirements of logistics and sales data
B. HbaseIt supports efficient random reading, and can complete real-time analysis and command of the logistics situation through reasonable design
C. Logistics data is very sparse,HBaseCan handle sparse data efficiently
D. HBaseIt can be built on ordinary commercial servers, and the construction cost is relatively low
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #39
FusionInsight HDsystem, aboutHiveWhich of the provided file formats is not a columnar file?
A. CRC
B. Parquet
C. RCFile
D. TextFile
عرض الإجابة
اجابة صحيحة: D
السؤال #40
MapReduceIn which of the following is the task ultimately performed?
A. NodeManager
B. container
C. ResourceManager
D. AppMaster
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اجابة صحيحة: B
السؤال #41
FusionInsight HDin, belonging toStreamingWhat are the roles of the service? (multiple choice)
A. Nimbus
B. Supervisor
C. Broker
D. quorumpeer
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اجابة صحيحة: AB
السؤال #42
FusionInsight HDofHive, user-definedUDFcan andHiveBuilt-inUDFduplicate name, in this case, will use user-definedUDF.
A. True
B. False
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اجابة صحيحة: B
السؤال #43
aboutFusionInsight HDplatformHiveservice, itsWebHCatDevelopment interface, which of the following descriptions is incorrect?
A. Support based onRESTquery request
B. WebHCatThe return data format isSML
C. WebHCatbased onHTTPandHTTPSAgreement to provide services to the outside world
D. able to passWebHCatCreate tables, query, etc
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اجابة صحيحة: B
السؤال #44
A certain project needs to save the online data in a certain area and search the full text whether there is any sensitive information in these online records to prevent crimes in the area.In this scenario, which of the following is the best solution?
A. tore data on HBase, and satisfy fuzzy matching queries through HBase's filtering features
B. hen storing data, create an index on Solr and store the complete data in HBasx; when querying, obtain key information of records through Solr full-text search, and obtain complete records on HBase through key information
C. reate an index on Solr, save the data, and return all the data when searching the full text
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اجابة صحيحة: B
السؤال #45
existSpark, assuminglinesIs anDStreamObject, which of the following statements can periodically count the number of words on this stream?
A. lines
B. lines
C. lines
D. lines
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اجابة صحيحة: C
السؤال #46
aboutFlumeThe characteristics of the collected data, which of the following descriptions are correct?
A. Supports distributed and streaming acquisition
B. with the help ofMapReducetask parallel collection
C. Only structured data can be collected
D. Trigger data collection with external timing tasks
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اجابة صحيحة: A
السؤال #47
in aMapReduceapplication,mapThe output of the function is viaMapReduce? ?After processing, send toreduceletter number. This process belongs to? ?Sort and group pairs.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #48
existKafkamiddle,ConsumerIt can support offline message and online message consumption at the same time, but consume data sequentially of.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #49
YarnWhich role is to manage individual node resources (CPU/Memory)of?
A. NodeManager
B. Resource Manager
C. Data Node
D. NameNode
عرض الإجابة
اجابة صحيحة: A

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