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Huawei HCIP-Big Data Developer Sample Questions:

1. Spark Streaming can receive data from Kafka and perform calculations. The calculation results can only be stored in HDFS and cannot be written back to Kafka.

A) False
B) True

2. Which of the following measures can improve the query performance of HBase? (multiple choice)

A) The data read at the same time are stored in the same cell
B) Pre-divide regions to make regions evenly distributed and improve concurrency
C) Use secondary indexes to adapt to more query scenarios
D) Query frequent attributes are placed in front of rowkey

3. Which of the following is correct about the HDFS client's file reading process? (multiple choice)

A) Download data from the nearest DataNode first.
B) If the client and the connected DataNode fail during reading, the client will abandon the failed node and connect to the node where the other replica is located.
C) Support multiple clients to read the same file data from the DataNode at the same time.
D) The file data is first returned from the DataNode to the NameNode, and then sent from the NameNode to the client.

4. Regarding the flow of data in Flume, which of the following descriptions is correct?

A) (1) Data from source to channel; (2) Sink gets data from channel
B) (1) Data from channle to source; (2) Sink gets data from source
C) (1) Data from sink to channle; (2) Source gets data from channel
D) (1) Data from channle to source; (2) Sink gets data from source

5. Hive service and HBase service are deployed on a FusionInsight cluster, and two apps (applications) are deployed on Tomcat. One app is to access the HBase service, and the other app is to access the Hive service. Regarding authentication, which methods are as follows Is it right? (multiple choice)

A) Deploy these two apps to two independent Tomcats, and then authenticate each
B) Just do authentication on the app that accesses the Hive service.
C) Combine these two apps into one and do authentication on the new app
D) Just do authentication on the app that accesses the HBase service

Solutions: