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Huawei HCIP-Big Data Developer Sample Questions:

1. In FusionInsight HD, regarding Oozie's job operation commands, which of the following descriptions are correct? (multiple choice)

A) The run command can make the job status RUNNING
B) The start command can make the job in the PREP state become RUNNING
C) The kill command can be used on jobs in PREP/SUSPEND/RUNNING status
D) The submit command can change the status of the job to PREP

2. In Flume, what is the main function of the source function module?

A) Split the data and send the data to different destinations according to the characteristics of the data
B) Obtain data and convert the original data into data objects that you process
C) Cache data and save the data in memory or files according to different reliability strategies
D) Output data to destination, support multiple output protocols

3. In a MapReduce application, the output of the map function is processed by the MapReduce framework and sent to the reduce function. This process is based on key-value pairs for sorting and grouping.

A) False
B) True

4. When the HDFS client writes files with N copies, which of the following is correct about the writing process? (multiple choice)

A) The first copy of the data block is prioritized on the node where the client writing the data block is located.
B) The copied file blocks are all stored on the same rack by default.
C) Each DataNode can store at most 1 copy.
D) Support multiple users to write to the same file at the same time.

5. Set the data block storage size to 128M. When the HDFS client writes a file, when writing a 100M file, how much storage space is actually occupied?

A) 128M
B) 50M
C) 100M
D) 64M

Solutions: