最新的Huawei H13-723-ENU免費考試真題

問題1

An application needs to interact with two FusionInsight clusters at the same time: it needs to access both the HBase service of cluster 1 and the Hive service of cluster 2;
So which of the following operations are necessary? (multiple choice)

A. Cluster 1 and cluster 2 complete mutual trust operation

B. Create the account required for this application on cluster 1, and set this account to access the HBase service of the cluster

C. Create an account with the same name in option A on cluster 2, and set this account to access the Hive service of this cluster

D. The accounts created by option A and option B must belong to the supergroup group

正確答案: A,B,C

問題2

What is the role of the setMapOutputCompressorClass class in the development of MapReduce applications?

A. Set the delivery method of map output

B. Set the compression method of reduce output

C. Set the compression method of map output

D. Set the compression method of Smap input

正確答案: C

問題3

When developing applications in the FusionInsight HD security version, the keytab file can be used for Kerberos security authentication.

A. False

B. True

正確答案: B

問題4

In FusionInsight HD, assuming a topology, spout concurrency is set to 3, bolt1 concurrency is 2, bolt2 concurrency is 3, and the number of workers is 2, then how are bolt1's executors distributed among workers?

A. There is no fixed pattern

B. Two workers are distributed

C. Two workers each distribute one

D. One of the two workers is distributed to two

正確答案: C

問題5

In the process of Flume cascade transmission, you can use the fail over mode to transmit, so that if the Flume node of the next hop fails or the data is received abnormally, it can automatically switch to another way to continue transmission.

A. False

B. True

正確答案: B

問題6

In FusionInsight HD's Hive, the user-defined UDF can have the same name as the Hive built-in UDF. In this case, the user-defined UDF will be used.

A. False

B. True

正確答案: A

問題7

On the client of FusionInsight HD, execute the kinit {account} command to get what item of KDC?

A. jaas.conf

B. Krb5.conf

C. TGT

D. ST

正確答案: C

問題8

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)).groupByKey ()

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

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

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

正確答案: B

問題9

When Flume writes into HDFS, what are the file generation methods? (multiple choice)

A. Set the number of events stored in a single file. When the number of events stored in the file reaches the set value, the old file will be closed and the new data will be written to the new file

B. Set the size of a single file. When the file size reaches the set value, the old file will be closed and the new data will be written into the new file

C. According to the source file name, directly generate the file

D. Set the file generation time interval. When the time interval is reached, the old file will be closed and the new data will be written into the new file

正確答案: A,B,C,D

問題10

Which of the following scenarios is not suitable for Redis? (multiple choice)

A. Counter application: for example, counting the number of people logged in to a certain website

B. Complex transaction operations

C. Get the latest N data: for example, get the latest 10 comments on a Weibo

D. A message queue application that is consumed by multiple consumers at the same time and guarantees that the message is successfully consumed by all subscribers (subscription-notification)

正確答案: B,D

問題11

Which of the following descriptions about the characteristics of Kafka is correct? (multiple choice)

A. Kafka can ensure that the messages in each Partition are in order

B. Kafka is suitable for offline and online message consumption scenarios

C. Kafka can achieve message persistence

D. Kafka is a high-throughput, distributed, publish-and-subscribe messaging system

正確答案: A,B,C,D

問題12

Regarding the Hive service of the FusionInsight HD platform and its WebHCat development interface, which of the following descriptions is incorrect?

A. You can create tables, query and other operations through WebHCat

B. The data format returned by WebHCat is XML

C. Support REST-based query request

D. WebHCat provides external services based on HTTP and HTTPS protocols

正確答案: B

最新的Huawei HCIP-Big Data Developer - H13-723-ENU免費考試真題

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