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Huawei HCIP-Big Data Developer V1.0 Sample Questions:

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

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

2. In the FusionInsight HD cluster, regarding the kinit operation command, which of the following statements are wrong? (multiple choice)

A) Only human-machine accounts can be used.
B) Only machine-to-machine accounts can be used.
C) A client does not support simultaneous use of multiple accounts.
D) The ticket obtained by executing this command will time out after 24 hours. You need to execute the kinit command again to log in again.

3. For Spark Streaming applications, in a JVM, only one StreamingContext can be active at the same time.

A) False
B) True

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) 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.

5. In Streaming application development, which interface does Bolt use to send Tuples?

A) emit
B) execute
C) nextTuple
D) open

Solutions: