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NEW QUESTION 218
Solris a high-performance, basedLucenefull-text search service.SolrrightLuceneexpanded, provides a ratioLuceneA richer query language and a powerful full-text search function are implemented, with a high degree of reliability.
Extensibility. At the same time fromSolr 4.0Version starts, supportsSolrCloudmodel.
- A. True
- B. False
Answer: A
NEW QUESTION 219
Regarding the Hive service of the FusionInsight HD platform and its WebHCat development interface, the following description does not the correct one is
- A. The returned data format of WebHCat is XML
- B. Support for REST-based query requests
- C. WebHCat provides external services based on HTTP and HTTPS protocols
- D. You can create tables, query and other operations through WebHCat
Answer: A
NEW QUESTION 220
existSparkIn application development, which of the following codes can correctly count words?
- A. vrval counts = textFie.map(line => line.split(")).map(word =>(word,
1)).groupByKey( ) - B. rval counts = textFile.map(line => line.split("")).map(word =>(word,
1)).reduceByKey(+) - C. vrval counts = textFile.flatMap(line => line.split("")).map(word =>(word,
1)).groupByKey( ) - D. val counts = textFile.flatMap(line => line.split(")).map(word =>(word,
1)).reduceByKey(+)
Answer: B
NEW QUESTION 221
HDFSclient withNcopy toHDFSWhen writing a file, if one of the replicas fails to write, all replicas will return write failure
- A. True
- B. False
Answer: B
NEW QUESTION 222
HDFSmiddleNameNodeUsed to store metadata for the file system.
- A. True
- B. False
Answer: A
NEW QUESTION 223
existSolrIn the application query scenario of the
Page. Which of the following statements about cursors is correct?
(multiple choice)
- A. SorlThe return result will havenextCursorMark, on the next call use this value ascursorMark
- B. The query field must be sorteduniqueKeySort by field
- C. When querying, the request cannot containstartparameter
- D. For the first query request, you need to specify query parameters. The operation method is as follows:solrquery.set (CursorMarkParams.CURSOR_MARK_PARAM,CursorMarkParams.CURSOR_MARK_ START);
Answer: A,B,C,D
NEW QUESTION 224
FusionInsight HDmiddle,StreamingWhich of the following scenarios is applicable? (multiple choice)
- A. Offline log analysis
- B. Streaming data monitoring
- C. Real-time visit statistics of the website
- D. Traffic flow analysis
Answer: B,C,D
NEW QUESTION 225
aboutKafkaThe characteristics of the following description are correct? (multiple choice)
- A. KafkaIt is a high-throughput, distributed, publish-subscribe-based messaging system
- B. KafkaPersistence of messages
- C. KafkaApplicable to offline and online message consumption scenarios
- D. Kafkaguarantee eachPartitionmessages in order
Answer: A,B,C,D
NEW QUESTION 226
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. enter aCollectionofShard ReplicaofCore Overviewinterface, you can view theReplicaIndex the actual document Number of bars, storage size and location information
- C. clickCloud, see eachCollectionunder eachShardReplicadistribution and status
- D. Solruser group,Solr adminrole andSuper groupof users have access toSolr Admin UI
Answer: A,B,C,D
NEW QUESTION 227
In ThereNnodesFusionInsightHDDeploy in a clusterHBase, it is recommended to deploy()HMaster process, ( )RegionServerprocess?
- A. N, N
- B. 2 2
- C. 3 N
- D. 2 N
Answer: D
NEW QUESTION 228
HBasetablerowkeyDesign is a very important development and design link.
- A. date+Phone number
- B. Phone number+Name
- C. Name+Phone number
- D. Phone number+date
Answer: D
NEW QUESTION 229
passing throughFusionindight ManagerWhen the interface creates a user, you want the user to have access to allTopichave Read and write permissions, but not createTopicpermissions should be addedkafkaWhich group of services?
- A. KakfaGroup
- B. KafkaadminGroup
- C. kafkasuperuserGroup
Answer: C
NEW QUESTION 230
MapReduceIn which of the following is the task ultimately performed?
- A. NodeManager
- B. container
- C. AppMaster
- D. ResourceManager
Answer: B
NEW QUESTION 231
FusionInsight HD in real-time processing scenarios, what computing frameworks are available? (multiple choice)
- A. MapReduce
- B. Spark Streaming
- C. Streaming
- D. HDFS
Answer: B,C
NEW QUESTION 232
A large-scale production enterprise,tPlan to analyze the internal logistics data and sales datat,Assumeiout of the wayT effectganalysis, which of the following statements are correct? (multiple choice)
- A. Logistics data is very sparse,HBaseCan handle sparse data efficiently.
- B. HBaseIt can be built on ordinary commercial servers, and the construction cost is relatively low.
- C. HBaseIt can store massive data and support dynamic expansion, which can fulfill the storage requirements of logistics and sales data.
- D. HbaseIt supports efficient random reading, and can complete real-time analysis and command of the logistics situation through reasonable design.
Answer: A,B,C,D
NEW QUESTION 233
Suppose there is an application with10Tables, each table has tens of millions of records, and the number of fields is about20indivual. now useRedisto cache this10The data of a table, the design of its data structure, which of the following is the best design?
- A. usem3structure, each row record of each table uses oneKEY,,aueAll records for a row in the table. The value after the field is concatenated.
- B. usehashstructure, and a table uses ahashKEY, a row in the table records forhash keyone of indivualed.
- C. usehashTable structure, each row record of each table uses onehashKEY, hashKEYofebCorrespondence table
- D. record fields, and designKEYEach table adds a different prefix to distinguish it.
useringstructure, each field of each row record of each table uses oneKEY.
Answer: C
NEW QUESTION 234
existMapReduceIn the development framework,InputFormatWhat is the function of the class?
- A. mergemapThe result of the stage has the samekeyvalue key-value pair
- B. put allmapThe results of the stages are merged to get the final result
- C. Split the input data into individualsplit, and willsplitfurther split into<KEY,VALUE>right, then asmapinput to the function
- D. rightmapThe results of the stages are sorted, merged,
Answer: C
NEW QUESTION 235
HDFSRuntime,NameNodewill load the entire metadata of the file system from disk into memory, so the file system The total number of files that can be stored is limited byNameNodememory capacity.
- A. True
- B. False
Answer: A
NEW QUESTION 236
for running onMapReduceThe application on the platform that this application depends onjarpackage will be put where?
- A. HIVE
- B. HDFS
- C. DB
- D. HBASE
Answer: B
NEW QUESTION 237
SparkThe calculation logic of the application will be parsed intoDAG, this parsing operation is completed by which of the following function modules become?
- A. Client
- B. ApplicationMaster
- C. Driver
- D. Executor.
Answer: C
NEW QUESTION 238
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