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Huawei HCIA-Big Data V3.0 Sample Questions:

1. Which statement is correct about the client uploading files to the HDF$ file system in the Hadoop system?

A) The client only uploads data to one DataNode, and then the NameNodet is responsible for block replication
B) The client writes the entire file to each DataNodel in sequence according to the address information of the DataNode, and then divides the file into multiple blos by the DataNode)ck
C) The file data of the client is passed to the DataNode through the NameNode
D) Allows the client to divide the file into multiple blocks, according to DaThe address information of taNodel is entered into each DataNode in order

2. To enable the log aggregation function of the Yam component in the Hadoop platform, which parameter needs to be configured?

A) yarn.acl.enable
B) yarn.nodemanager.log-dirs
C) yarn.nodemanager.local-dirs
D) yarn.log-aggregation-enable

3. Spark Streaming has higher real-time performance than Storm.

A) True
B) False

4. The compatibility of F1ink is reflected in which of the following aspects?

A) Can be mixed with Hadoop's original mappers and reducers
B) Ability to use Hadoop formatted input and output
C) Ability to get more data from local
D) YARN can be used as a resource scheduling manager for Flink clusters

5. When HBasel is deployed in a Fusioninsight HD cluster with N nodes, it is recommended to deploy( )HMasteri process,( )A RegionServeri process.

A) 3, N
B) 2.2
C) N, N
D) 2, N

Solutions: