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

1. When the HDFS client writes files to HDFS with N copies, if one of the copies fails to write, all copies will return the write failure.

A) True
B) False

2. For files stored in N (N>1) copies, the HDFS client initiates a file read request. If the read copy node fails, it will directly return to failure and will not go to other copy nodes for reading.

A) True
B) False

3. In Kafka, Consumer can support both offline and online message consumption, but the consumption of data is sequential consumption.

A) True
B) False

4. What are the several parameter setting methods for Spark applications? (multiple choices)

A) In the application code, set by the setProperty method of SparkContext
B) In the application code, set through the SparkConf object
C) When submitting the application, set it through --conf
D) Configure in the application configuration file spark-defaults.conf

5. In FusionInsight HD, regarding the secondary development of Hive UDF, which of the following descriptions is correct? (multiple choice)

A) Before the user-defined UDF is used, it needs to be created in the Hive system.
B) User-defined UDF is not allowed to add information such as summary and status.
C) In a secure cluster, user-defined UDFs are recommended to be created before each use.
D) User-defined UDF can add deterministic and statefull annotations according to the actual situation.

Solutions: