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Huawei HCIP-Big Data Developer Sample Questions:

1. In Spark, SparkSQL is an independent module, which can independently complete SQL statement parsing, optimization, and execution without relying on SparkCore.

A) True
B) False

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

A) 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
B) 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
C) According to the source file name, directly generate the file
D) 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

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

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

4. 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) Acker will mark the processing timeout or processing failure message as fail.
C) After Acker is enabled, Streaming will identify the Tuple that failed to be sent and automatically resend it without human intervention.
D) Starting from the spout, the failure of any link in the formed Tuple tree will mark the entire tree as a failure.

5. In FusionInsight HD, which of the following are the configuration items of Oozie's MapReduce Action? (multiple choice)

A) source
B) name-node
C) job-tracker
D) mapred.mapper.class

Solutions: