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

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

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

2. When HDFS is running, the NameNode will load all the metadata of the file system from the disk to the memory. Therefore, the total number of files that the file system can store is limited by the memory capacity of the NameNode.

A) True
B) False

3. In FusionInsight HD, assuming a topology, spout concurrency is set to 3, bolt1 concurrency is 2, bolt2 concurrency is 3, and the number of workers is 2, then how are bolt1's executors distributed among workers?

A) Two workers are distributed
B) One of the two workers is distributed to two
C) There is no fixed pattern
D) Two workers each distribute one

4. Because Spark is a memory-based computing engine, the amount of data that a Spars application can process cannot exceed the total memory allocated to the Spark application.

A) True
B) False

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

A) True
B) False

Solutions: