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Huawei HCIA-Big Data V2.0 Sample Questions:

1. In Fusionlnsight HD, what is wrong about HBase's BloomFilter feature?

A) Can be used to filter data (correct case)
B can be used to optimize random read performance
C will increase storage consumption
B) Can accurately determine that a piece of data does not exist

2. Big data requires a change in the thinking mode of traditional industries. Data collection and analysis should be regarded as an important part of business processes. Data-driven business processes should be optimized to achieve intelligence and self-childhood, and rely on data assets to achieve cross-border expansion.

A) False
B) correct

3. Which instance must the Loader instance be deployed with in Fusionlnsight HD?

A) ResourceManager
B) DataNode
C) NodeManager
D) RegionServer

4. After submitting the topology using the Streaming client shell command in the Fusionlnsight HD system, use Storm and UI to check and find that the topology has not processed data for a long time. What are the reasons?

A) When the amount of data is large, the topology processing speed is slow
B) SupeMsor's slots resource is exhausted. After the topology is submitted, the slot cannot be allocated to start the Worker process
C) The topology is too complex or too concurrency, which causes the worker startup time to be too long, exceeding the wait time of supeMsor
D) There is a logic error in the topology service, and it cannot run normally after submission

5. In Huawei Fusioninsight HD system, there are 3 data blocks in the storage copy. When the data block is lost on one node, you need to manually copy a copy to the node.

A) False
B) True

Solutions: