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Huawei HCIP-Big Data Developer Sample Questions:

1. In FusionInsight HD, when using Streaming's ACK mechanism, which of the following statements are correct? (multiple choice)

A) The application needs to implement message retransmission logic in the fail() interface method of spout.
B) After Acker is enabled, Streaming will identify the Tuple that failed to be sent and automatically resend it without human intervention.
C) Acker will mark the processing timeout or processing failure message as fail.
D) Starting from the spout, the failure of any link in the formed Tuple tree will mark the entire tree as a failure.

2. Which role in Yarn manages the resources (CPU/Memory) of a single node?

A) NodeManager
B) NameNode
C) Data Node
D) ResourceManager

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

4. Which of the following methods can generate DStream objects?

A) KafkaUtils.createDirectStream(...)
B) StreamingContext.fileStream(...)
C) StreamingContext.socketStream(..)
D) KafkaUtils.createStream(...)

5. In Spark, the accumulator can realize high-speed parallel counter and variable summation; in the process of Spark application development, only the value of this counter can be obtained on the Driver.

A) False
B) True

Solutions: