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

1. In Spark, assuming that lines is a DStream object, the filter statement can filter out 80% of the data. Which statement is correct for the following two statements:
X: lines.filter(...).groupByKey(...)
Y: lines.groupByKey(...).filter(...)

A) X and Y have the same performance
B) It is impossible to determine the performance difference between X and Y
C) X has higher performance than Y
D) X has lower performance than Y

2. When adding a RegionServer host to an HBase cluster, you must stop the original cluster first, because HBase does not support dynamic expansion.

A) False
B) True

3. In the process of Flume cascade transmission, you can use the fail over mode to transmit, so that if the Flume node of the next hop fails or the data is received abnormally, it can automatically switch to another way to continue transmission.

A) False
B) True

4. In Spark, which statement about broadcast variables is correct?

A) Broadcast variables are generated by the SparkContext.broadcast() method
B) Broadcast variables are read-only
C) Broadcast variables are saved in each Task
D) The broadcast variable is saved in each Executor

5. In which of the following is the MapReduce task finally executed?

A) AppMaster
B) container
C) ResourceManager
D) NodeManager

Solutions: