H13-723 by Huawei Valid Free Exam Practice Test

Question 1

When writing MapReduce applications, which two interfaces usually need developers to implement?

A. combine and sort B. reduce and combine C. map and combine D. map and reduce

Correct Answer: D

Question 2

Which distributed computing frameworks can the Hive component of FusionInsigt HD run on? (multiple choice)

A. HDFS B. MapReduoe C. Streaming D. Spark

Correct Answer: B,D

Question 3

In the FusionInsight HD system, in the Solr example project solr-example\conf\solr-example.properties, the values of ZK_URL and ZOOKEEPER_DEFAULT_SERVER_PRINCIPAL can be obtained from which of the following options?

A. Obtain from the Solr Admin UI interface B. Obtained from the FusionInsight Manager Solr service configuration interface C. In solr-example\conf\solr-example.properties, these two parameters are already included by default

Correct Answer: A

Question 4

In FusionInsigt HD, the user wants to query the contents of a certain HBase table through the HBase shell operation. In this scenario, it is recommended that the administrator assign a machine-to-machine account to the user.

A. False B. True

Correct Answer: A

Question 5

In Spark, which of the following is the operator that takes the intersection of the DataFrame?

A. intersect (other: Data Fra me): Data Fra me B. filter (condifionExpr: String): DataFrame C. dropDuplicates():DataFrame D. join (right: DataFrame, join Exprs: Column): DataFrame

Correct Answer: A

Question 6

In Kafka, which of the following commands can check how many partitions a topic has?

A. kafka-topics.sh --create B. kafka-topics.sh --alter C. kafka-topics.sh --list D. kafka-topics.sh - describe

Correct Answer: D

Question 7

In Spark, assuming that lines is a DStream object, which of the following statements can periodically count the number of words on this stream?

A. Iines.flatMap(_.split (" " )).map(word => (word, 1)).reduce(_ +_).print() B. Iines.fIatMap(_.spIit (" " )).map(word => (word, 1)).reduceByKey(_ +_).print() C. Iines.flatMap(_.split (" " )).map(word => (word,word.Iength())).reduceByKey (_ +_).print() D. Iines.flatMap(_.split (" " )).flatMap(word => (word, 1)).groupByKey(_ +_).print()

Correct Answer: B

Question 8

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

A. Neither B. The client caches the cluster topology information C. The server caches the cluster topology information D. Both

Correct Answer: D

Question 9

In FusionInsight HD, what are the computing frameworks that can be used in real-time processing scenarios? (multiple choice)

A. HDFS B. MapReduoe C. Spark Streaming D. Streaming

Correct Answer: C,D

Question 10

In FusionInsight HD, if there are multiple sources in a Flume configuration file, the source names cannot be repeated.

A. False B. True

Correct Answer: B

Huawei HCIP-Big Data Developer V1.0 - H13-723 Exam Practice Test