Huawei HCIP-Big Data Developer Sample Questions:
1. In a MapReduce application, the output of the map function is processed by the MapReduce framework and sent to the reduce function. This process is based on key-value pairs for sorting and grouping.
A) False
B) True
2. In the implementation of the business logic of HBase writing data, which of the following interfaces or classes does not need to be involved?
A) HBaseAdmin
B) PutList
C) Put
D) HTable
3. In FusionInsight HD, when using Streaming's ACK mechanism, which of the following statements are correct? (multiple choice)
A) Acker will mark the processing timeout or processing failure message as fail.
B) Starting from the spout, the failure of any link in the formed Tuple tree will mark the entire tree as a failure.
C) After Acker is enabled, Streaming will identify the Tuple that failed to be sent and automatically resend it without human intervention.
D) The application needs to implement message retransmission logic in the fail() interface method of spout.
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 (word => (word, 1)).groupByKey ()
C) val counts = textFile.map (line => line.split ("')).map (-rd => (word, 1)).reduceByKey(_ +_)
D) val counts = textFile.flatMap (line=>line.split (" ")).map (word => (word, 1)).groupByKey ()
5. 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 name
B) Index column type
C) The name of the column family to which the index column belongs
D) Index column
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: A,B,D | Question # 4 Answer: A | Question # 5 Answer: A,B,C,D |
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