H13-723試験無料問題集（155題）「Huawei HCIP-Big Data Developer V1.0 認定」

出題：1

If a user wants to develop an application to access the HBase service, he first applies for a machine-to-machine account teste1, and sets the permission to access the HBase service: then download the keytab file of the account and use the account to run the application. Subsequent business requirements for this application require access to the Hive service. After the tested user is granted access to the Hive component, the user's keytab file needs to be re-downloaded.

A. True

B. False

正解：B 解答を投票する

出題：2

Spark Streaming, as a stream processing engine for micro-batch processing, converts the data of each time slice into a partition in an RDD for calculation.

A. True

B. False

正解：A 解答を投票する

出題：3

For the HBase component of the FusionInsight HD platform, what attributes of the secondary index need to be defined when adding a secondary index? (multiple choice)

A. Index column type

B. Index name

C. The name of the column family to which the index column belongs

D. Index column

正解：A,B,C,D 解答を投票する

出題：4

In Spark application development, which of the following codes can correctly count words?

A. val counts = textFile.flatMap (line=>line.split (" ")).map (word => (word, 1)).reduceByKey(_ +_)

B. val counts = textFile.map (line => line.split ("')).map (-rd => (word, 1)).reduceByKey(_ +_)

C. val counts = textFile.map (line=>line.split (" ")).map (word => (word, 1)).groupByKey ()

D. val counts = textFile.flatMap (line=>line.split (" ")).map (word => (word, 1)).groupByKey ()

正解：A 解答を投票する

出題：5

Hive service and HBase service are deployed on a FusionInsight cluster, and two apps (applications) are deployed on Tomcat. One app is to access the HBase service, and the other app is to access the Hive service. Regarding authentication, which methods are as follows Is it right? (multiple choice)

A. Just do authentication on the app that accesses the Hive service.

B. Just do authentication on the app that accesses the HBase service

C. Deploy these two apps to two independent Tomcats, and then authenticate each

D. Combine these two apps into one and do authentication on the new app

正解：C,D 解答を投票する

出題：6

As the core object of Spark, which of the following characteristics does RDD have? (multiple choice)

A. Read only

B. Fault tolerance

C. Efficient

D. Partition

正解：A,B,C,D 解答を投票する

出題：7

For files stored in N (N>1) copies, the HDFS client initiates a file read request. If the read copy node fails, it will directly return to failure and will not go to other copy nodes for reading.

A. True

B. False

正解：B 解答を投票する

出題：8

In Spark, because DataFrame is a higher-level interface than RDD, the call level will be more. Therefore, the performance of all programs developed based on DataFrame will be worse than that of programs developed based on RDD.

A. True

B. False

正解：B 解答を投票する

出題：9

In FusionInsight HD, regarding Hive's data loading function (importing data through Hive's LOAD command), what is wrong in the following description?

A. It can be directly loaded to the hive table from the local hard disk of the node where the client is located

B. It can be loaded directly to the hive table from HDFS

C. It can be directly loaded to the hive table from the local hard disk of the node where HiveServer is located

D. Hive's data loading process will not parse the specific file content, mainly the process of file transfer

正解：A 解答を投票する

出題：10

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. Obtained from the FusionInsight Manager Solr service configuration interface

B. In solr-example\conf\solr-example.properties, these two parameters are already included by default

C. Obtain from the Solr Admin UI interface

正解：C 解答を投票する

H13-723試験無料問題集「Huawei HCIP-Big Data Developer V1.0 認定」