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Huawei HCIA-Big Data V3.0 Sample Questions:

1. Which of the following are the built-in string functions of Hive?

A) length()
B) abs ()
C) substr()
D) trim()

2. In Spark SQL tables, there are often many small files (the size is much smaller than the HDFS block size). In this case, Spark will start more Tasks to process these small files. When there is a Shuffle operation in the SQL logic, it will Greatly increase the number of hash buckets. This seriously affects performance.

A) True
B) False

3. Which of the following is not a role or service involved in the process of reading data in HBasei?

A) HDFS
B) HRegionServer
C) Zookeeper
D) HMaster

4. Which of the following options are advantages of FusioninsightSparkSQL?

A) long-term stability test
B) Stable and high performance
C) SQL Compatibility
D) Support data insert, update and delete
E) everything aboveA. True

5. What are the functions of Nimbus in the Streaming architecture?

A) Resource allocation
B) task scheduling
C) start/stop worker process
D) Monitor task execution status

Solutions: