最新的Huawei H13-723免費考試真題

問題1

Which of the following methods can generate DStream objects?

A. StreamingContext.socketStream(..)

B. KafkaUtils.createStream(...)

C. KafkaUtils.createDirectStream(...)

D. StreamingContext.fileStream(...)

正確答案: A,B,C,D

問題2

When creating a user through the FusionInsight manager interface, if you want the user to have read and write permissions for all topics, but do not have the permission to create topics, which group of Kafka service should be added?

A. Kafkaadmin group

B. Kafka group

C. Kafkasuperuser group

正確答案: C

問題3

In FusionInsight HD, what are the data distribution methods belonging to Streaming? (multiple choice)

A. Local Grouping

B. Shuffle Grouping

C. Direct Grouping

D. Field Grouping

正確答案: A,B,C,D

問題4

Regarding Redis cluster topology information, which of the following descriptions is correct?

A. The server caches the cluster topology information

B. Neither

C. The client caches the cluster topology information

D. Both

正確答案: D

問題5

Which of the following business applications is not suitable for Hive?

A. Data mining (user behavior analysis, interest division, regional display)

B. Real-time online data analysis

C. Data summary (number of user clicks per day/week, click ranking)

D. Non-real-time analysis (log analysis, statistical analysis)

正確答案: B

問題6

When HDFS is running, the NameNode will load all the metadata of the file system from the disk to the memory. Therefore, the total number of files that the file system can store is limited by the memory capacity of the NameNode.

A. False

B. True

正確答案: B

問題7

Regarding Streaming's topology, what is wrong in the following description?

A. A Topology is a directed acyclic graph (DAG) connected by a set of Spout components and Bolt components through Stream Groupings

B. Business logic is encapsulated in Topology

C. A Topology can only specify to start one Worker process

D. Topology will keep running until it is explicitly killed

正確答案: C

問題8

There are the following business scenarios: the user's online log files have been stored on HDFS, and the log file content format is: each online record has three fields, namely name, gender, and online time, separated by "," between the fields; All female netizens who spend more than two hours online are required to print out.
Which of the following code fragments can achieve the above business scenarios? (multiple choice)

A. sc.textFile( " /data/file/path " .map(_.split( " , " ).map(p => Femalelnfo(p(0), p(1), p (2) .trim.tolnt)).toDF.registerTempTable("FemalelnfoTable") sqlContext.sql("select name,sum(stayTime) as stayTime from FemalelnfoTable where gender = ' Female '" ).filter( " stayTime >= 120 " ).collect().foreach(println)

B. val text = sc.textFile("/data/file/path") val data = text.filter(_.contains("female")) val femaleData:RDD[(String,Int)] = data.map{Iine => val t = line.split( ' , ' ) (t(0),t(2).tolnt) }. val result = femaleData.filter(line => line._2> 120) result.collect().map(x => x._1 + ' , ' + x._2).foreach(println)

C. sc.textFile( " /data/file/path " .map(_.split( " , " ).map(p => Femalelnfo(p(0), p(1), p (2) .trim.tolnt)).toDF.registerTempTable("FemalelnfoTable") sqlContext.sql("select name,sum(stayTime) as stayTime from FemalelnfoTable where gender = ' Female ' group by name " ).filter( " stayTime >= 120 " ).collect().foreach(println)

D. val text = sc.textFile("/data/file/path") val data = text.filter(_.contains("female")) val femaleData:RDD[(String,Int)] = data.map{Iine => val t = line.split( ' , ' ) (t(0),t(2).tolnt) }.reduceByKey(_ + _) val result = femaleData.filter(line => line._2> 120) result.collect().map(x => x._1 + ' , ' + x._2).foreach(println)

正確答案: C,D

問題9

Which source type does Flume support for real-time data collection?

A. taildir

B. Log4j

C. Thrift

D. JMS

正確答案: A

問題10

Regarding the characteristics of Redis, which of the following descriptions is correct? (multiple choice)

A. Rich data structure

B. Support data persistence

C. Support SQL query interface

D. Low latency

正確答案: A,B,D

問題11

In MapReduce application development, which of the following JAVA classes is responsible for managing and running a computing task?

A. lob

B. FileSystem

C. Context

D. Configuration

正確答案: A

最新的Huawei HCIP-Big Data Developer V1.0 - H13-723免費考試真題

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